Staff profile

David Toll is a Professor in the Department of Engineering and Co-Director of the Institute of Hazard, Risk and Resilience at Durham University, UK. He also has the following roles:

• Chair, British Geotechnical Association
• Chair of Technical Committee TC106 on Unsaturated Soils of the International Society of Soil Mechanics and Geotechnical Engineering (ISSMGE) (2014-2022)
• Chair, Joint Technical Committee JTC2 of the Federation of International Geo-Engineering Societies (representing ISRM, ISSMGE, IAEG and IGS) (2005-2017)
• Kwang-Hua Chair Professor at Tongji University, China
• Chair, Institution of Civil Engineers North East (2013-14)
• Chair, Northern Geotechnical Group (the regional group of the British Geotechnical Association and part of ICE North East) (2009-2014)

David Toll's research encompasses two highly relevant areas of civil engineering: (i) the engineering behaviour of unsaturated and tropical soils and (ii) the application of information technology to geotechnical engineering. The primary focus for his work on unsaturated soils is to find engineering solutions for natural hazards, particularly landslides. Much of his current work examines the impacts of climate change on transportation infrastructure through field and laboratory studies and numerical modelling. His research in information technology involves work on data exchange and standards, BIM, data acquisition and computer control systems.

He was Chair of the Scientific Committee for the European Conference on Soil Mechanics and Geotechnical Engineering held in Edinburgh in 2015. He has been a member of the organising/technical committee for many international conferences on unsaturated soils: Singapore, 2000; Recife, 2002; Weimar, 2003; Trento, 2005; Nanjing, 2007; Barcelona, 2010; Pattaya, 2011; Naples 2012; Sydney 2014; Lisbon 2020 and organised the First European Conference on Unsaturated Soils in Durham, 2008. He also organises the conference series on Information Technology in Geo-Engineering with conferences in Shanghai in 2010 and Durham in 2014.

He has twice been a member of the editorial advisory board of Geotechnique and been member of the Editorial Panels for two Geotechnique Symposia in Print (2011 and 2013). He was the founding editor for the international journal, Geotechnical and Geological Engineering, published by Springer, and remains a member of the editorial board. He is a member of the editorial board of Transportation Geotechnics and has been for the Quarterly Journal for Engineering Geology and Hydrogeology. 

He is Director of the Sustainable Infrastructure Research Challenge for the Department of Engineering. He has been Director of Education, Design Coordinator, Accreditation Coordinator and International Coordinator for the School of Engineering and Computing Sciences. He teaches Geotechnical Engineering and Mechanics on the undergraduate MEng course in Engineering.

• geotechnical engineering
• engineering geology
• information technology

Chapter in book

• Toll, D. (in press). Tropical Soils. In J. Burland, T. Chapman, H. Skinner, & M. Brown (Eds.), ICE Manual of Geotechnical Engineering (341-361). Institution of Civil Engineers
• Pradhan, S., Toll, D., Rosser, N., & Brain, M. (2020). Field monitoring of soil-moisture to understand the hydrological response of a road-cut slope. In R. Cardoso, C. Jommi, & E. Romero (Eds.), 4th European Conference on Unsaturated Soils (E-UNSAT 2020). EDP Sciences. https://doi.org/10.1051/e3sconf/202019501029
• Toll, D., Mendes, J., Gallipoli, D., Glendinning, S., & Hughes, P. (2012). Investigating the impacts of climate change on slopes: field measurements. In T. Radford (Ed.), EARTHWORKS IN EUROPE (151-161). https://doi.org/10.1144/egsp26.17
• Toll, D. (2012). The Behaviour of Unsaturated Soil. In B. Huat, D. Toll, & A. Prasad (Eds.), A Handbook of Tropical Residual Soil Engineering (117-145). London: Taylor and Francis. https://doi.org/10.1201/b12302-9

Conference Paper

• Hughes, D., Karim, M., Briggs, K., Glendinning, S., Toll, D., Dijkstra, T., …Dixon, N. A Comparison of numerical modelling techniques to predict the effect of climate on infrastructure slopes. In M. Winter, D. Smith, P. Eldred, & D. Toll (Eds.),
• Bland, J., Walthall, S., & Toll, D. The Development and Governance of the AGS Format for Geotechnical Data. In D. G. Toll, H. Zhu, A. Osman, W. Coombs, X. Li, & M. Rouainia (Eds.),
• Toll, D., Asquith, J., Fraser, A., Hassan, A., Liu, G., Lourenço, S., …Stirling, R. Tensiometer techniques for determining soil water retention curves. In Z. H. Chen, C. F. Wei, D. Sun, & Y. F. Xu (Eds.),
• Toll, D., & O’Dea, J. An XML data format for geotechnical data: AGSML4. In D. G. Toll, H. Zhu, A. Osman, W. Coombs, X. Li, & M. Rouainia (Eds.),
• Mendes, J., & Toll, D. Influence of initial water content on the water retention behaviour of a sandy clay soil.
• Toll, D., Hassan, A., King, J., & Asquith, J. New devices for water content measurement.
• Md. Rahim, M., & Toll, D. Fully Coupled Flow-Deformation Analyses of Infiltration and Matric Suctions within a Tropical Soil Slope. In N. Khalili, A. Russell, & A. Khoshghalb (Eds.), Unsaturated Soils: Research & Applications (1453-1458)
• Winter, M., Smith, D., Eldred, P., & Toll, D. Introduction to the XVI European Conference on Soil Mechanics and Geotechnical Engineering: Geotechnical Engineering for Infrastructure and Development. In M. G. Winter, D. M. Smith, P. J. L. Eldred, & D. G. Toll (Eds.),
• Hassan, A., & Toll, D. Electrical Resistivity Tomography for Characterizing Cracking of Soils.
• Hassan, A., & Toll, D. Water content characteristics of mechanically compacted clay soil determined using the electrical resistivity method. In M. G. Winter, D. M. Smith, P. J. L. Eldred, & D. G. Toll (Eds.),
• Robson, E., Pradhan, S., & Toll, D. (2024). A Field Study on the Stability of Road Cut Slopes in Nepal. . https://doi.org/10.53243/Geo-Resilience-2023-1-8
• Kumar, A., Azizi, A., & Toll, D. (2022). The Influence of Cyclic Loading Frequency on the Response of an Unsaturated Railway Formation Soil. In A. Lemnitzer, & A. W. Stuedlein (Eds.), Geo-Confress 2022: Geoenvironmental Engineering; Unsaturated Soils; and Contemporary Topics in Erosion, Sustainability, and Coal Combustion Residuals (274-283). https://doi.org/10.1061/9780784484050.029
• Mendes, J., Gallipoli, D., Toll, D., & Tarantino, A. (2018). First Saturation and Resaturation of High Capacity Tensiometers with 1.5 MPa High Air Entry Value (HAEV) Ceramic Filters. In PanAm Unsaturated Soils 2017 (514-522). https://doi.org/10.1061/9780784481684.052
• Tinoco, J., Gomes Correia, A., Cortez, P., & Toll, D. (2017). Data-driven Classification Approaches for Stability Condition Prediction of Soil Cutting Slopes.
• Stirling, S., Helm, P., Glendinning, S., Asquith, J., Hughes, P., & Toll, D. (2017). Deterioration of geotechnical infrastructure: the influence of asset aging through environmental cycling.
• Toll, D., Hughes, P., & Asquith, J. (2016). Soil water retention behaviour for an instrumented embankment. . https://doi.org/10.1051/e3sconf/20160910013
• Kerr, H., Johnson, K., Toll, D. G., & Mansfield, F. (2016). Flood Holding Capacity: A Novel Concept to Evaluate the Resilience of Amended Soils. . https://doi.org/10.1061/9780784480120.041
• Osinski, P., Toll, D., & Koda, E. (2016). Comparison of Soil Water Retention Curves for sandy clay, obtained using different laboratory testing methods. . https://doi.org/10.1051/e3sconf/20160911008
• Toll, D., Asquith, J., Hughes, P., & Osinski, P. (2016). Soil Water Retention Behaviour of a Sandy Clay Fill Material. . https://doi.org/10.1016/j.proeng.2016.06.039
• Wang, Y., Sheng, D., Ross, K., & Toll, D. G. (2016). Modelling of the water retention characteristic of deformable soils. . https://doi.org/10.1051/e3sconf/20160911005
• Beckett, C., Fourie, A., & Toll, D. (2016). Water repellent soils: the case for unsaturated soil mechanics. . https://doi.org/10.1051/e3sconf/20160911011
• Glendinning, S., Helm, P., Rouainia, M., Stirling, R., Asquith, J., Hughes, P., …Muddle, D. (2015). Research-informed design, management and maintenance of infrastructure slopes: development of a multi-scalar approach. In International Symposium on Geohazards and Geomechanics (ISGG2015). https://doi.org/10.1088/1755-1315/26/1/012005
• Murray, E., Toll, D., & Sivakumar, V. (2014). Interpretation of stresses and strains in unsaturated fine-grained soils. In N. Khalili, A. Russell, & A. Khoshghalb (Eds.), Unsaturated Soils: Research & Applications (197-201)
• Asquith, J., & Toll, D. (2014). Data Acquisition Software for Controlling Serial Ports with Cloud Data Storage. In D. G. Toll, H. Zhu, A. Osman, W. Coombs, X. Li, & M. Rouainia (Eds.), Information Technology in Geo-Engineering (163-169). https://doi.org/10.3233/978-1-61499-417-6-163
• Toll, D., Rahim, M. M., Karthikeyan, M., & Tsaparas, I. (2014). Soil atmosphere interactions for analysing slopes in tropical soils. In F. Oka, A. Murakami, R. Uzuoka, & S. Kimoto (Eds.), Computer Methods and Recent Advances in Geomechanics (1333-1338)
• Toll, D., & Hassan, A. (2014). Data Acquisition and Control Software for Automated Resistivity Measurements. In D. G. Toll, H. Zhu, A. Osman, W. Coombs, X. Li, & M. Rouainia (Eds.), Information Technology in Geo-Engineering (170-176). https://doi.org/10.3233/978-1-61499-417-6-170
• Hassan, A., & Toll, D. (2014). Investigation of the directional dependence of soil resistivity in cracking clays. In N. Khalili, A. Russell, & A. Khoshghalb (Eds.), Unsaturated Soils: Research & Applications (137-142)
• Hossain, A., & Toll, D. (2012). Geotechnical Behaviour of Unsaturated Tropical Clay Soils of Dhaka, Bangladesh. In C. Mancuso, C. Jommi, & F. D'Onza (Eds.), . https://doi.org/10.1007/978-3-642-31116-1_42
• Asquith, J., Toll, D., & Johnson, K. (2012). Design and Construction of Large Lysimeters for Monitoring Unsaturated Transport of Contaminants. In C. Mancuso, C. Jommi, & F. D’Onza (Eds.), . https://doi.org/10.1007/978-3-642-31343-1
• Mendes, J., Toll, D., & Evans, F. (2012). A Double Cell Triaxial System for Unsaturated Soils Testing. In C. Mancuso, C. Jommi, & F. D'Onza (Eds.), . https://doi.org/10.1007/978-3-642-31116-1_1
• Lourenço, S. D. N., Gallipoli, D., Toll, D. G., Augarde, C. E., & Evans, F. D. (2011). Advances in tensiometer-based suction control systems. In E. Alonso, & A. Gens (Eds.), Unsaturated soils (695-700). https://doi.org/10.1201/b10526-108
• Javadi, A., Johari, A., Ahangar-Asr, A., Faramarzi, A., Toll, D., & Khalili, N. (2010). Prediction of the behaviour of unsaturated soils using evolutionary polynomial regression: An incremental approach. In E. Alonso, & A. Gens (Eds.), Unsaturated soils (837-842)
• Toll, D., & Ali Rahman, Z. (2010). Engineering Behaviour of Unsaturated Structured Soils. In D. Cameron, & W. Kaggwa (Eds.),
• Javadi, A., Johari, A., Ahangar-Asr, A., Faramarzi, A., & Toll, D. (2010). A New Approach to Constitutive Modelling of Unsaturated Soils Using Evolutionary Polynomial Regression. In O. Buzzi, S. Fityus, & D. Sheng (Eds.),
• Toll, D., Gallipoli, D., Augarde, C., De Gennaro, V., Mancuso, C., Tarantino, A., …Wheeler, S. (2010). The MUSE Network: Research Outcomes. In O. Buzzi, S. Fityus, & D. Sheng (Eds.),
• Toll, D. (2009). International Data Standards for Geotechnical Engineering. In M. Hamza, M. Shahien, & Y. El-Mossallamy (Eds.), . https://doi.org/10.3233/978-1-60750-031-5-2690
• Javadi, A., Johari, A., Ahangar-Asr, A., Faramarzi, A., & Toll, D. (2009). Using Evolutionary Polynomial Regression in Modelling of Unsaturated Soils.
• Toll, D. (2009). Management of Geotechnical Data and Processes. In M. Hamza, M. Shahien, & Y. El-Mossallamy (Eds.), . https://doi.org/10.3233/978-1-60750-031-5-3360
• Lourenço, S. D. N., Toll, D. G., Augarde, C. E., Gallipoli, D., Congreve, A., Smart, T., & Evans, F. (2008). Observations of unsaturated soils by Environmental Scanning Electron Microscopy in dynamic mode. In Unsaturated soils : advances in geo-engineering : proceedings of the 1st European Conference on Unsaturated Soils, E-UNSAT 2008, Durham, United Kingdom, 2-4 July 2008 (145-150). https://doi.org/10.1201/9780203884430.ch15
• Toll, D. (2008). International Data Exchange: The Future for Geo-engineering.
• Lourenço, S., Toll, D., Augarde, C., Gallipoli, D., Evans, F., & Medero, G. (2008). Evaluation of Suction Measurement by the Tensiometer and the Axis Translation Technique.
• Toll, D., Mendes, J., Augarde, C., Karthikeyan, M., Phoon, K., Gallipoli, D., & Lin, K. (2008). Effects of Climate Change on Slopes for Transportation Infrastructure.
• Jotisankasa, A., Kulsawan, B., Toll, D., & Rahardjo, H. (2008). Studies of Rainfall-induced Landslides in Thailand and Singapore.
• Glendinning, S., Hughes, P., Hughes, D., Clarke, D., Smethurst, J., Powrie, W., …Mendes, J. (2008). Biological and Engineering Impacts of Climate on Slopes – Learning from Full-Scale.
• Mendes, J., Toll, D., Augarde, C., & Gallipoli, D. (2008). A System for Field Measurement of Suctions using High Capacity Tensiometers. In D. Toll, C. Augarde, D. Gallipoli, & S. Wheeler (Eds.),
• Karthikeyan, M., Toll, D., & Phoon, K. (2008). Prediction of Changes in Pore-water Pressure Response due to Rainfall Events.
• Toll, D. (2008). Representing Geo-Engineering Data from Instruments and Transducers. In A. N. Alshawabkeh, K. R. Reddy, & M. V. Khire (Eds.),
• Toll, D., Ali Rahman, Z., & Gallipoli, D. (2008). Critical State Conditions for an Unsaturated Artificially Bonded Soil.
• Hughes, P., Glendinning, S., Dixon, N., Dijkstra, T., Clarke, D., Smethurst, J., …Hughes, D. (2008). Field Testing and Modelling the Effects of Climate on Geotechnical Infrastructure – A Collaborative Approach.
• Mendes, J., Gallipoli, D., Toll, D., Augarde, C., Glendinning, S., & Hughes, P. (2008). The Effect of Climate Change on Infrastructure Embankments: The BIONICS Project.
• Toll, D. (2007). Representing Slopes in XML. In D. Toll, & Z. Chen (Eds.),
• Toll, D., Phoon, K., Cheng, Y., & Karthikeyan, M. (2007). The Effect of Climate on Landslides in Singapore.
• Toll, D., Ali Rahman, Z., & Gallipoli, D. (2007). Towards Understanding the Behaviour of Unsaturated Bonded Soils. In Z. Yin, J. Yuan, & A. Chiu (Eds.),
• Lourenço, S., Gallipoli, D., Toll, D., Evans, F., & Medero, G. (2007). Determination of the Soil Water Retention Curve with Tensiometers. In T. Schanz (Ed.),
• Martin, J., & Toll, D. (2006). The Development of a Data Structure for the Storage of Preliminary Site Investigation Data.
• Hossain, S., & Toll, D. (2006). Geomechanical Aspects of some Tropical Clay Soils from Dhaka, Bangladesh.
• Lourenço, S., Gallipoli, D., Toll, D., & Evans, F. (2006). Development of a Commercial Tensiometer for Triaxial Testing of Unsaturated Soils. In G. Miller, C. Zapata, S. Houston, & D. Fredlund (Eds.),
• Lourenço, S., Gallipoli, D., Toll, D., & Evans, F. (2006). Use of Tensiometers for the Measurement of Soil Suction.
• Chandler, R., Quinn, P., Beaumont, A., Evans, D., & Toll, D. (2006). Combining the power of AGS and XML: AGSML the data format for the future. . https://doi.org/10.1061/40803%28187%29112
• Gallipoli, D., Toll, D., Augarde, C., Tarantino, A., De Gennaro, V., Vaunat, J., …Mancuso, C. (2006). The MUSE Network: Sharing Research Expertise on Unsaturated Soils across Europe.
• Stenke, F., Toll, D., & Gallipoli, D. (2006). Comparison of Water Retention Curves for Clayey Soils using Different Measurement Techniques. In G. Miller, C. Zapata, S. Houston, & D. Fredlund (Eds.),
• Toll, D., Malandraki, V., Ali Rahman, Z., & Gallipoli, D. (2006). Bonded Soils: Problematic or Predictable?.
• Walker, S., Gallipoli, D., & Toll, D. (2005). The Effect of Structure on the Water Retention of Soil Tested using Different Methods of Suction Measurement.
• Gallipoli, D., Stephens, S., & Toll, D. (2004). L'effetto del contenuto d'acqua iniziale sulle proprieta meccaniche di un argilla costipata (the effect of initial water content on the mechanical properties of compacted clay).
• Stephens, S., Gallipoli, D., & Toll, D. (2004). Influence of Initial Water Content on the Strength of a Statically Compacted Clay.
• Toll, D. (2004). The Critical State in Unsaturated Soils. In J. Jucá, T. de Campos, & F. Marinho (Eds.),
• Tsaparas, I., & Toll, D. (2003). Factors affecting Infiltration into an Unsaturated Soil Slope.
• Toll, D., & Hossain, A. (2003). Pre-failure behaviour of the tropical clay soils of Dhaka, Bangladesh.
• Toll, D. (2003). On the Shear Strength of Unsaturated Soils. In I. Jefferson, & M. Frost (Eds.),
• Tsaparas, I., & Toll, D. (2002). Numerical Analysis of Infiltration into Unsaturated Residual Soil Slopes. In J. Jucá, T. de Campos, & F. Marinho (Eds.),
• Hatipoglu, B., Toll, D., Giolas, A., & Incecik, M. (2001). Knowledge-based geotechnical correlation systems applied to slope stability.
• Toll, D. (2001). Computers and geotechnical engineering: A review.
• Toll, D., Tsaparas, I., & Rahardjo, H. (2001). The influence of rainfall sequences on negative pore-water pressures within slopes.
• Toll, D., Ong, B., & Rahardjo, H. (2000). Triaxial testing of unsaturated samples of undisturbed residual soil from Singapore. In H. Rahardjo, D. Toll, & E. Leong (Eds.),
• Toll, D. (2000). Information technology applications in geotechnical education and vocational training. In F. Baraends, J. Lindberg, H. Luger, L. de Quelerij, & A. Veruit (Eds.),
• Jaksa, M., Davison, L., & Toll, D. (2000). Computer aided learning in geotechnical engineering education.
• Ling, N., & Toll, D. (2000). Suction and strength behaviour of unsaturated calcrete. In H. Rahardjo, D. Toll, & E. Leong (Eds.),
• Tsaparas, I., Toll, D., & Rahardjo, H. (2000). Influence of rainfall sequences on the seepage conditions within a slope: A parametric study. In H. Rahardjo, D. Toll, & E. Leong (Eds.),
• Wong, J., Rahardjo, H., Toll, D., & Leong, E. (2000). Shear strength of undisturbed Bukit Timah granitic soils under infiltration conditions. In H. Rahardjo, D. Toll, & E. Leong (Eds.),
• Toll, D. (1999). A data acquisition and control system for geotechnical testing. In B. Kumar, & B. Topping (Eds.),
• Toll, D. (1999). Using Excel macros for data processing. In B. Kumar, & B. Topping (Eds.),
• Toll, D. (1998). A review of artificial intelligence systems for site characterization. In P. Robertson, & P. Mayne (Eds.),
• Oliver, A., & Toll, D. (1996). A computer system for site investigation data management and interpretation. In C. Craig (Ed.),
• Toll, D. (1996). Discussion on session 2: Data management.
• Oliver, A., & Toll, D. (1995). An object-oriented approach to site investigation data management and interpretation.
• Toll, D., & Barr, R. (1995). Computer-aided learning for geotechnical engineering. In B. Topping (Ed.),
• Toll, D., & Giolas, A. (1995). A knowledge-based System for estimation of geotechnical properties.
• Toll, D. (1994). Interpreting Site Investigation Data Using a Knowledge-Based System.
• Malandraki, V., & Toll, D. (1994). Yielding of a Weakly Bonded Artificial Soil.
• Moula, M., & Toll, D. (1993). Representing Geotechnical Knowledge - Soils and Field Tests.
• Toll, D. (1993). A Computer Control System For Stress Path Triaxial Testing.
• Toll, D., & Malandraki, V. (1993). Triaxial Testing of a Weakly Bonded Soil.
• Vaptismas, N., & Toll, D. (1993). Interpreting Borehole Information.
• Toll, D., Moula, M., & Vaptismas, N. (1991). Representing the Engineering Description of Soils in Knowledge Based Systems.
• Toll, D., Vaptismas, N., & Moula, M. (1991). Comparing Soils Using Knowledge Based Systems. In B. Topping (Ed.),
• Toll, D., & Attewell, P. (1990). Use of an Expert System in Site Investigation.
• Grace, H., & Toll, D. (1989). The Improvement of Roads in Developing Countries to Bituminous Standards Using Naturally-Occurring Laterites.

Conference Proceeding

• (2015). Geotechnical Engineering for Infrastructure and Development, XVI European Conference on Soil Mechanics and Geotechnical Engineering, Edinburgh. In M. Winter, D. Smith, P. Eldred, & D. Toll (Eds.), . https://doi.org/10.1680/ecsmge.60678.vol1.001

Edited book

• Osman, A., & Toll, D. (Eds.). (2015). Proceedings of the 24th European Young Geotechnical Engineering. Durham University
• Toll, D., Zhu, H., Osman, A., Coombs, W., Li, X., & Rouainia, M. (Eds.). (2014). Information Technology in Geo-Engineering. Netherlands: IOS Press
• Huat, B., Toll, D., & Prasad, A. (Eds.). (2012). Handbook of Tropical Residual Soils Engineering. London: Taylor and Francis Group. https://doi.org/10.1201/b12302
• Toll, D., Zhu, H., & Li, X. (Eds.). (2010). Information Technology in Geo-Engineering. Amsterdam: IOS Press (Millpress)
• Toll, D., Augarde, C., Gallipoli, D., & Wheeler, S. (Eds.). (2008). Unsaturated Soils: Advances in Geo-Engineering. CRC Press/Balkema (Taylor & Francis)
• Liong, S., Phoon, K., & Toll, D. (Eds.). (2007). Climate Change: Modelling, Impacts and Adaptions. Research Publishing Services
• Toll, D., & Chen, Z. (Eds.). (2007). Rock Mechanics Data: Representation and Standardisation
• Toll, D. (Ed.). (2006). Proc. Geo-Singapore 2006: International Conference on Geotechnical Engineering. Ci-Premier
• Toll, D. (Ed.). (2001). Unsaturated soil concepts and their application in geotechnical practice. Kluwer Academic Publishers
• Rahardjo, H., Toll, D., & Leong, E. (Eds.). (2000). Unsaturated Soils for Asia. A A Balkema

Journal Article

• Sana, E., Kumar, A., Robson, E., Prasanna, R., Kala, U., & Toll, D. G. (2024). Preliminary assessment of series of landslides and related damage by heavy rainfall in Himachal Pradesh, India, during July 2023. Landslides, https://doi.org/10.1007/s10346-023-02209-1
• Dias, A. S., Hughes, P. N., & Toll, D. G. (2023). Soil–Water Retention Curve Prediction for Compacted London Clay Subjected to Moisture Cycles. Geotechnical and Geological Engineering, https://doi.org/10.1007/s10706-023-02706-z
• Dias, A. S., Hughes, P. N., Toll, D. G., & Glendinning, S. (2023). A simple method to determine soil–water retention curves of compacted active clays. Transportation Geotechnics, 43, 101138. https://doi.org/10.1016/j.trgeo.2023.101138
• Tinoco, J., Gomes Correia, A., Cortez, P., & Toll, D. (2023). An Evolutionary Neural Network Approach for Slopes Stability Assessment. Applied Sciences, 13(14), Article 8084. https://doi.org/10.3390/app13148084
• Azizi, A., Kumar, A., & Toll, D. G. (2023). Coupling cyclic and water retention response of a clayey sand subjected to traffic and environmental cycles. Géotechnique, 73(5), 401-417. https://doi.org/10.1680/jgeot.21.00063
• Azizi, A., Kumar, A., & Toll, D. G. (2023). The bounding effect of the water retention curve on the cyclic response of an unsaturated soil. Acta Geotechnica, 18(4), 1901-1917. https://doi.org/10.1007/s11440-022-01724-0
• Pradhan, S., Toll, D., Rosser, N., & Brain, M. (2022). An investigation of the combined effect of rainfall and road cut on landsliding. Engineering Geology, 307, Article 106787. https://doi.org/10.1016/j.enggeo.2022.106787
• Kumar, A., Azizi, A., & Toll, D. (2022). Application of suction monitoring for cyclic triaxial testing of compacted soils. Journal of Geotechnical and Geoenvironmental Engineering, 148(4), https://doi.org/10.1061/%28asce%29gt.1943-5606.0002766
• Gaspar, T., Jacobsz, S., Heymann, G., Toll, D., Gens, A., & Osman, A. (2022). The mechanical properties of a high plasticity expansive clay. Engineering Geology, 303, https://doi.org/10.1016/j.enggeo.2022.106647
• Kerr, H. C., Johnson, K. L., & Toll, D. G. (2022). Reusing Fe water treatment residual as a soil amendment to improve physical function and flood resilience. SOIL, 8(1), 283-295. https://doi.org/10.5194/soil-8-283-2022
• Stirling, R., Toll, D., Glendinning, S., Helm, P., Yildiz, A., Hughes, P., & Asquith, J. (2021). Weather-driven deterioration processes affecting the performance of embankment slopes. Géotechnique, 71(11), 957-969. https://doi.org/10.1680/jgeot.19.sip.038
• Tinoco, J., Parente, M., Gomes Correia, A., Cortez, P., & Toll, D. (2021). Predictive and prescriptive analytics in transportation geotechnics: Three case studies. Transportation Engineering, 5, Article 100074. https://doi.org/10.1016/j.treng.2021.100074
• Grebby, S., Sowter, A., Gluyas, J., Toll, D., Gee, D., Athab, A., & Girindran, R. (2021). Advanced analysis of satellite data reveals ground deformation precursors to the Brumadinho Tailings Dam collapse. Communications Earth & Environment, 2, Article 2. https://doi.org/10.1038/s43247-020-00079-2
• Davis, C., Coningham, R., Acharya, K., Kunwar, R., Forlin, P., Weise, K., …Schmidt, A. (2020). Identifying archaeological evidence of past earthquakes in a contemporary disaster scenario: Case-studies of damage, resilience and risk reduction from the 2015 Gorkha Earthquake and past seismic events within the Kathmandu Valley UNESCO World Heritage Property (Nepal). Journal of Seismology, 24(4), 729-751. https://doi.org/10.1007/s10950-019-09890-7
• Liu, G., Toll, D., Kong, L., & Asquith, J. (2020). Matric Suction and Volume Characteristics of Compacted Clay Soil under Drying and Wetting Cycles. Geotechnical Testing Journal, 43(2), 464-479. https://doi.org/10.1520/gtj20170310
• Kumar, A., Hughes, P. N., Sarhosis, V., Toll, D., Wilkinson, S., Coningham, R., …Maskey, P. N. (2020). Experimental, numerical and field study investigating a heritage structure collapse after the 2015 Gorkha earthquake. Natural Hazards, 101(1), 231-253. https://doi.org/10.1007/s11069-020-03871-7
• Toll, D. G., Rahim, M. S. M., Karthikeyan, M., & Tsaparas, I. (2019). Soil–atmosphere interactions for analysing slopes in tropical soils in Singapore. Environmental Geotechnics, 6(6), 361-372. https://doi.org/10.1680/jenge.15.00071
• Coningham, R., Acharya, K., Barclay, C., Barclay, R., Davis, C., Graham, C., …Wilson, A. (2019). Reducing Disaster Risk to Life and Livelihoods by Evaluating the Seismic Safety of Kathmandu’s Historic Urban Infrastructure: enabling an interdisciplinary pilot. Journal of the British Academy, 7(S2), 45-82. https://doi.org/10.5871/jba/007s2.045
• Mendes, J., Gallipoli, D., Tarantino, A., & Toll, D. (2019). On the development of an ultra-high-capacity tensiometer capable of measuring water tensions to 7 MPa. Géotechnique, 69(6), 560-564. https://doi.org/10.1680/jgeot.18.t.008
• Tinoco, J., Gomes Correia, A., Cortez, P., & Toll, D. G. (2018). Data-Driven Model for Stability Condition Prediction of Soil Embankments Based on Visual Data Features. Journal of Computing in Civil Engineering, 32(4), Article 04018027. https://doi.org/10.1061/%28asce%29cp.1943-5487.0000770
• Tang, A., Hughes, P., Dijkstra, T., Askarinejad, A., Brenčič, M., Cui, Y., …Van Beek, V. (2018). Atmosphere–vegetation–soil interactions in a climate change context; impact of changing conditions on engineered transport infrastructure slopes in Europe. Quarterly Journal of Engineering Geology and Hydrogeology, 51(2), 156-168. https://doi.org/10.1144/qjegh2017-103
• Ali Rahman, Z., Toll, D., & Gallipoli, D. (2018). Critical state behaviour of weakly bonded soil in drained state. Geomechanics and Geoengineering, 13(4), 233-245. https://doi.org/10.1080/17486025.2018.1454608
• Tinoco, J., Gomes Correia, A., Cortez, P., & Toll, D. G. (2017). Stability Condition Identification of Rock and Soil Cutting Slopes Based on Soft Computing. Journal of Computing in Civil Engineering, 32(2), Article 04017088. https://doi.org/10.1061/%28asce%29cp.1943-5487.0000739
• Toll, D., & Ali Rahman, Z. (2017). Critical state shear strength of an unsaturated artificially cemented sand. Géotechnique, 67(3), 208-215. https://doi.org/10.1680/jgeot.15.p.042
• Mendes, J., & Toll, D. (2016). Influence of initial water content on the mechanical behaviour of an unsaturated sandy clay soil. International Journal of Geomechanics, 16(6), Article D4016005. https://doi.org/10.1061/%28asce%29gm.1943-5622.0000594
• Winter, M. G., Smith, D. M., Eldred, P. J., Toll, D. G., & Chrimes, M. (2016). Review of the XVI European Conference on Soil Mechanics and Geotechnical Engineering. Geotechnical Engineering, 169(5), https://doi.org/10.1680/jgeen.16.00020
• Toll, D. (2015). California Bearing Ratio tests on a lateritic gravel from Kenya. Transportation Geotechnics, 5, 59-67. https://doi.org/10.1016/j.trgeo.2015.09.004
• D’Onza, F., Wheeler, S., Gallipoli, D., Barrera Bucio, M., Hofmann, M., Lloret-Cabot, M., …Vassallo, R. (2015). Benchmarking selection of parameter values for the Barcelona basic model. Engineering Geology, 196, 99-118. https://doi.org/10.1016/j.enggeo.2015.06.022
• Cassar, J., Winter, M., Marker, B., Bromhead, E., Smith, J., Toll, D., …Dijkstra, T. (2013). Introduction to the Stone Cycle and the Conservation of Historic Buildings. Quarterly Journal of Engineering Geology and Hydrogeology, 46(4), 363-366. https://doi.org/10.1144/qjegh2013-052
• Toll, D., Lourenço, S., & Mendes, J. (2013). Advances in suction measurements using high suction tensiometers. Engineering Geology, 165, 29-37. https://doi.org/10.1016/j.enggeo.2012.04.013
• Toll, D., Mendes, J., Hughes, P., Glendinning, S., & Gallipoli, D. (2012). Climate Change and the Role of Unsaturated Soil Mechanics. Geotechnical engineering, 43(1), 76-82
• Lourenco, S., Gallipoli, D., Augarde, C., Toll, D., Fisher, P., & Congreve, A. (2012). Formation and evolution of water menisci in unsaturated granular media. Géotechnique, 62(3), 193-199. https://doi.org/10.1680/geot.11.p.034
• Javadi, A., Ahangar-Asr, A., Johari, A., Faramarzi, A., & Toll, D. (2012). Modelling stress–strain and volume change behaviour of unsaturated soils using an evolutionary based data mining technique, an incremental approach. Engineering Applications of Artificial Intelligence, https://doi.org/10.1016/j.engappai.2012.03.006
• Tarantino, A., Gallipoli, D., Augarde, C., De Gennaro, V., Gomez, R., Laloui, L., …Wheeler, S. (2011). Benchmark of experimental techniques for measuring and controlling suction. Géotechnique, 61(4), https://doi.org/10.1680/geot.2011.61.4.303
• Lourenço, S., Gallipoli, D., Toll, D., Augarde, C., & Evans, F. (2011). A new procedure for the determination of the Soil Water Retention Curves by continuous drying using high suction tensiometers. Canadian Geotechnical Journal, 48(2), 327-335. https://doi.org/10.1139/t10-062
• Lourenço, S., Gallipoli, D., Augarde, C., Toll, D., & Evans, F. (2011). Towards a Tensiometer Based Suction Control System for Laboratory Testing of Unsaturated Soils. Geotechnical Testing Journal, 34(6), 755-764. https://doi.org/10.1520/gtj103755
• Toll, D., Lourenço, S., Mendes, J., Gallipoli, D., Evans, F., Augarde, C., …Tarantino, A. (2011). Soil suction monitoring for landslides and slopes. Quarterly Journal of Engineering Geology and Hydrogeology, 44, 23-33. https://doi.org/10.1144/1470-9236/09-010
• Ali Rahman, Z., Toll, D., Gallipoli, D., & Taha, M. (2010). Micro-structure and Engineering Behaviour of Weakly Bonded Soil. Sains malaysiana, 36(6),
• Lourenço, S., Gallipoli, D., Toll, D., Evans, F., Leong, E., Rahardjo, H., & He, L. (2010). Calibration of high suction tensiometers - Discussion. Géotechnique, 60(3), 233-234. https://doi.org/10.1680/geot.8.d.019
• Lourenço, S., Gallipoli, D., Toll, D., & Evans, F. (2009). On the Measurement of Water Pressure in Soils with High Suction Tensiometers. Geotechnical Testing Journal, 32(6), 565-57. https://doi.org/10.1520/gtj102372
• Jaquin, P., Augarde, C., Gallipoli, D., & Toll, D. (2009). The strength of unstabilised rammed earth materials. Géotechnique, 59(5), 487-490. https://doi.org/10.1680/geot.2007.00129
• Hughes, P., Glendinning, S., Mendes, J., Parkin, G., Toll, D., Gallipoli, D., & Miller, P. (2009). Full-scale testing to assess climate effects on embankments. Engineering Sustainability, 162(2), 67-79. https://doi.org/10.1680/ensu.2009.162.2.67
• Tarantino, A., Ridley, A., & Toll, D. (2008). Field measurement of suction, water content, and water permeability. Geotechnical and Geological Engineering, 26(6), 751-782. https://doi.org/10.1007/s10706-008-9205-4
• Fyson, M., & Toll, D. (2008). Case-Based System for Slope Design. Computers and Geotechnics, 35(3), 468-478. https://doi.org/10.1016/j.compgeo.2007.06.007
• Lourenço, S., Gallipoli, D., Toll, D., Augarde, C., Evans, F., & Medero, G. (2008). Calibrations of a high-suction tensiometer. Géotechnique, 58(8), 659-668. https://doi.org/10.1680/geot.2008.58.8.659
• Lourenço, S., Gallipoli, D., Toll, D., Evans, F., & Medero, G. (2007). Discussion of “The development of a suction control system for a triaxial apparatus”, A. Jotisankasa, M.Coop and A. Ridley. Geotechnical Testing Journal, 30(4), 738-741. https://doi.org/10.1520/gtj100928
• Toll, D. (2007). Geo-Engineering Data: Representation and Standardisation. The electronic journal of geotechnical engineering,
• Haeri, S., Hamidi, A., Hosseini, S., Asghari, E., & Toll, D. (2006). Effect of Cement Type on the Mechanical Behavior of a Gravelly Sand. Geotechnical and Geological Engineering, 24(2), 335-360. https://doi.org/10.1007/s10706-004-7793-1
• Martin, J., & Toll, D. (2006). The Development of a Knowledge-Based System for the Preliminary Investigation of Contaminated Land. Computers and Geotechnics, 33(2), 93-100. https://doi.org/10.1016/j.compgeo.2006.03.002
• Hosseini, S., Haeri, S., & Toll, D. (2005). Behaviour of gravelly sand using critical state concepts. Scientia iranica, 12(2), 167-177
• Haeri, S., Hosseini, S., Toll, D., & Yasrebi, S. (2005). The behaviour of an artificially cemented sandy gravel. Geotechnical and Geological Engineering, 23(5), 537-560. https://doi.org/10.1007/s10706-004-5110-7
• Toll, D., & Ong, B. (2004). Critical state parameters for an unsaturated residual sandy soil - Discussion. Géotechnique, 54(1), 69 - 71. https://doi.org/10.1680/geot.54.1.69.36328
• Asghari, E., Toll, D., & Haeri, D. (2004). Effect of cementation on the shear strength of Tehran gravelly sand. Journal of sciences, Islamic Republic of Iran, 15(1), 65-71
• Topping, B., & Toll, D. (2003). Special issue on Civil-Comp 2001. Advances in Engineering Software, 34(11-12), 655-656. https://doi.org/10.1016/s0965-9978%2803%2900096-6
• Toll, D., & Cubitt, A. (2003). Representing geotechnical entities on the world wide web. Advances in Engineering Software, 34(11-12), 729-736. https://doi.org/10.1016/s0965-9978%2803%2900097-8
• Tsaparas, I., Rahardjo, H., Toll, D., & Leong, E. (2003). Infiltration characteristics of two instrumented residual soil slopes. Canadian Geotechnical Journal, 40(5), 1012-1032. https://doi.org/10.1139/t03-049
• Toll, D., & Ong, B. (2003). Critical-state parameters for an unsaturated residual sandy clay. Géotechnique, 53(1), 93-103. https://doi.org/10.1680/geot.53.1.93.37255
• Toll, D., & Shields, R. (2003). A Web-based Data Format for Ground Investigation Data. The electronic journal of geotechnical engineering, 8(D),
• Asghari, E., Toll, D., & Haeri, S. (2003). Triaxial behaviour of a cemented gravelly sand, Tehran Alluvium. Geotechnical and Geological Engineering, 21(1), 1-28. https://doi.org/10.1023/a%3A1022934624666
• Tsaparas, I., Rahardjo, H., Toll, D., & Leong, E. (2002). Controlling parameters for rainfall-induced landslides. Computers and Geotechnics, 29(1), 1-27. https://doi.org/10.1016/s0266-352x%2801%2900019-2
• Wong, J., Rahardjo, H., Toll, D., & Leong, E. (2001). Modified triaxial apparatus for shearing-infiltration test. Geotechnical Testing Journal, 24(4), 370-380. https://doi.org/10.1520/gtj11134j
• Toll, D. (2001). Rainfall-induced landslides in Singapore. Geotechnical Engineering, 149(4), 211-216. https://doi.org/10.1680/geng.149.4.211.48654
• Rahardjo, H., Li, X., Toll, D., & Leong, E. (2001). The effect of antecedent rainfall on slope stability. Geotechnical and Geological Engineering, 19(3-4), 371 - 399. https://doi.org/10.1023/a%3A1013129725263
• Aung, K., Rahardjo, H., Leong, E., & Toll, D. (2001). Relationship between porosimetry measurement and soil–water characteristic curve for an unsaturated residual soil. Geotechnical and Geological Engineering, 19(3-4), 401 - 416. https://doi.org/10.1023/a%3A1013125600962
• Malandraki, V., & Toll, D. (2001). Triaxial tests on weakly bonded soil with changes in stress path. Journal of Geotechnical and Geoenvironmental Engineering, 127(3), 282-291. https://doi.org/10.1061/%28asce%291090-0241%282001%29127%3A3%28282%29
• Toll, D., & Barr, R. (2001). A decision support system for geotechnical applications. Computers and Geotechnics, 28(8), 575-590. https://doi.org/10.1016/s0266-352x%2801%2900014-3
• Toll, D., Walthall, S., & Sharma, S. (2001). Format for geotechnical data exchange in the United Kingdom. Transportation Research Record, 26-33
• Malandraki, V., & Toll, D. (2000). Drained probing triaxial tests on a weakly bonded artificial soil. Géotechnique, 50(2), 141-151
• Giolas, A., & Toll, D. (1999). A knowledge-based system for correlations using object hierarchies. Computers and Geotechnics, 25(3), 123-140. https://doi.org/10.1016/s0266-352x%2899%2900023-3
• Toll, D., & Barr, R. (1998). A computer-aided learning system for the design of foundations. Advances in Engineering Software, 29(7-9), 637-643. https://doi.org/10.1016/s0965-9978%2898%2900029-5
• Toll, D., & Giolas, A. (1998). Representing geotechnical properties in a knowledge-based system. Advances in Engineering Software, 29, 627-636
• Thompson, L., & Toll, D. (1997). Evaluating students' and tutors' perceptions of computer-assisted learning materials: A case study. Innovations in education and training international, 34(4), 272-280
• Toll, D. (1996). Artificial intelligence applications in geotechnical engineering
• Malandraki, V., & Toll, D. (1996). The definition of yield for bonded materials. Geotechnical and Geological Engineering, 14(1), 67 - 82. https://doi.org/10.1007/bf00431235
• Toll, D. (1995). The role of a knowledge-based system in interpreting geotechnical information. Géotechnique, 45(3), 525-531
• Moula, M., Toll, D., & Vaptismas, N. (1995). Knowledge-based systems in geotechnical engineering. Géotechnique, 45(2), 209-221
• Toll, D. (1991). Towards understanding the behaviour of naturally-occurring road construction materials. Geotechnical and Geological Engineering, 9(3-4), 197 - 217. https://doi.org/10.1007/bf00881741