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Soil–atmosphere interactions for analysing slopes in tropical soils in Singapore (2018)
Journal Article
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

The modelling of soil–atmosphere interactions for slopes requires a proper understanding of the relevant soil parameters (soil water retention curve and the permeability function). This paper reports on numerical investigations of an instrumented res... Read More about Soil–atmosphere interactions for analysing slopes in tropical soils in Singapore.

Atmosphere–vegetation–soil interactions in a climate change context; impact of changing conditions on engineered transport infrastructure slopes in Europe (2018)
Journal Article
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

In assessing the impact of climate change on infrastructure, it is essential to consider the interactions between the atmosphere, vegetation and the near-surface soil. This paper presents an overview of these processes, focusing on recent advances fr... Read More about Atmosphere–vegetation–soil interactions in a climate change context; impact of changing conditions on engineered transport infrastructure slopes in Europe.

Stability Condition Identification of Rock and Soil Cutting Slopes Based on Soft Computing (2017)
Journal Article
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

For transportation infrastructure, one of the greatest challenges today is to keep large-scale transportation networks, such as railway networks, operational under all conditions. This task becomes even more difficult to accomplish if one takes into... Read More about Stability Condition Identification of Rock and Soil Cutting Slopes Based on Soft Computing.

Critical state shear strength of an unsaturated artificially cemented sand (2017)
Journal Article
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

This paper presents the results of a set of 22 triaxial tests on an unsaturated artificially cemented sand. The results are used to explore the applicability of a number of unsaturated soil frameworks for interpreting the shear strength. Constant wat... Read More about Critical state shear strength of an unsaturated artificially cemented sand.

Influence of initial water content on the mechanical behaviour of an unsaturated sandy clay soil (2016)
Journal Article
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

The mechanical behavior of a sandy clay soil was investigated by a series of constant water content triaxial tests on unsaturated samples with suction measurements. The tests were carried out in double-cell triaxial cells on compacted samples and als... Read More about Influence of initial water content on the mechanical behaviour of an unsaturated sandy clay soil.

Benchmarking selection of parameter values for the Barcelona basic model (2015)
Journal Article
D’Onza, F., Wheeler, S., Gallipoli, D., Barrera Bucio, M., Hofmann, M., Lloret-Cabot, M., Lloret Morancho, A., Mancuso, C., Pereira, J.-M., Romero Morales, E., Sánchez, M., Solowski, W., Tarantino, A., Toll, D., & 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

Seven teams took part in a benchmarking exercise on selection of parameter values for the Barcelona Basic Model (BBM) from experimental data on an unsaturated soil. All teams were provided with experimental results from 9 tests performed on a compact... Read More about Benchmarking selection of parameter values for the Barcelona basic model.

Advances in suction measurements using high suction tensiometers (2012)
Journal Article
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

Significant advances in unsaturated soils testing have been gained through the development of high suction tensiometers allowing direct measurement of suction beyond 100 kPa. This has allowed the implementation of techniques that measure and control... Read More about Advances in suction measurements using high suction tensiometers.

Climate Change and the Role of Unsaturated Soil Mechanics (2012)
Journal Article
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

The Intergovernmental Panel on Climate Change (IPCC) provides convincing evidence of global warming as a result of increased greenhouse gas production. There has been a greater occurrence of extreme climate events in recent decades. We need to ensure... Read More about Climate Change and the Role of Unsaturated Soil Mechanics.

A new procedure for the determination of the Soil Water Retention Curves by continuous drying using high suction tensiometers (2011)
Journal Article
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

Soil-water retention curves (SWRCs) can be determined using high-suction tensiometers (HSTs) following two different procedures that involve either continuous or discrete measurement of suction. In the former case, suction measurements are taken whil... Read More about A new procedure for the determination of the Soil Water Retention Curves by continuous drying using high suction tensiometers.