TC106 Unsaturated Soils

Unsaturated Soils

Disseminate knowledge and practice in the area of mechanics of unsaturated soils including as examples, expansive, collapsible, residual, arid, and compacted soils:

  • Organize specialty conferences, symposiums and workshops.
  • Encourage preparation of keynote lectures, state-of-the-art lectures including new technology, general reports for conferences organized by the International Society, regional conferences and conferences organized by Member societies.


To establish guidelines and technical recommendations in the field of unsaturated soils:

  • Promote benchmark exercises to establish the capabilities of current theoretical frameworks and prediction methodologies in unsaturated soil mechanics.
  • Promote the exchange of information about testing of unsaturated soils for geotechnical and geoenvironmental purposes.

Assist with technical programs of international and regional conferences organized by the ISSMGE:

  • Promote the presentation of findings of the TC in main sessions and discussion sessions.
  • Promote TC106-sponsored sessions on unsaturated soils at ISSMGE sponsored international and regional conferences on soil mechanics and geotechnical engineering, and to support special geotechnical and geoenvironmental conferences on unsaturated soils.

Interact with industry and overlapping organizations working in areas related to the TC's specialist area:

  • Cooperate actively with other technical committees whose field of activity involves important questions related to unsaturated soils: TC208 Slope Stability in Engineering Practice; TC210 Dams and Embankments and TC215 Environmental Geotechnics.

# Type Full Name Country
1 Chair David Toll United Kingdom
2 Vice Chair Bernardo Caicedo Colombia
3 Secretary Adrian Russell Australia
4 Nominated by TC Chair Pierre Delage France
5 Nominated by TC Chair Gerald Miller United States
6 Corresponding Member Francesca Casini Italy
7 Nominated Member Simon Wheeler United Kingdom
8 Nominated Member Akbar Javadi United Kingdom
9 Nominated Member Tácio Mauro Pereira de Campos Brazil
10 Nominated Member DIEGO GUILLERMO MANZANAL Argentina
11 Nominated Member LUCIANO OLDECOP Argentina
12 Nominated Member Emőke Imre Hungary
13 Nominated Member Fernando Marinho Brazil
14 Nominated Member S. Sreedeep India
15 Nominated Member Panagiotis Sitarenios Greece
16 Nominated Member Michael Bardanis Greece
17 Nominated Member Alessio Ferrari Switzerland
18 Corresponding Member Chan-Young Yune South Korea
19 Corresponding Member Deneys Schreiner United Kingdom
20 Nominated Member Wojciech Slowski Finland
21 Nominated Member Farimah MASROURI France
22 Nominated Member Nasser Khalili Australia
23 Nominated Member Gabriela Brandusa Cazacu Romania
24 Nominated Member Harianto Rahardjo SEAGS
25 Nominated Member Gabriele Della Vecchia Italy
26 Nominated Member Claudio Mancuso Italy
27 Nominated Member EDUARDO ROJAS GONZALEZ Mexico
28 Corresponding Member Ehsan Nikooee Netherlands
29 Nominated Member Cristina Jommi Netherlands
30 Nominated Member Oscar Mooijman Netherlands
31 Nominated Member David Masin Czech & Slovak Republics
32 Corresponding Member Kartal Toker Turkey
33 Nominated Member Huriye Bilsel Turkey
34 Nominated Member Emanuel Maranha das Neves Portugal
35 Nominated Member Rafaela Cardoso Portugal
36 Nominated Member Charles Ng Hong Kong
37 Nominated Member H.W. Sun Hong Kong
38 Corresponding Member Tomoyoshi NIshimura Japan
39 Corresponding Member Geoff Chao United States
40 Nominated Member Sandra Houston United States
41 Nominated Member Chia-Cheng Fan Chinese Taipei
42 Nominated Member Changfu Wei China
43 Nominated Member Hirofumi Toyota Japan
44 Nominated Member Atsushi Iizuka Japan
45 Nominated Member Tom Schanz Germany
46 Nominated Member Antonio Gens Spain
47 Nominated Member Kazimierz Garbulewski Poland
48 Nominated Member Seyed Mohsen Haeri Iran
49 Nominated Member Seong-Wan Park South Korea
50 Nominated Member Indarto Indarto Indonesia
51 Nominated Member Daichao Sheng Australia
52 Nominated Member Sai Vanapalli Canada
53 Nominated Member Delwyn Fredlund Canada
54 Nominated Member Peter Van Impe Belgium
55 Nominated Member Robert Charlier Belgium
56 Nominated Member Behrouz Gatmiri Iran
57 Nominated Member Yu-Jun CUI France
58 Nominated Member Eduardo Alonso Spain
59 Nominated Member Liangtong Zhan China

TC106 Discussion Sessions at ICSMGE, Seoul 2017

TC106 is organising 3 discussion sessions on Unsaturated Soils at the 19th International Conference on Soil Mechanics and Geotechnical Engineering at Seoul in September 2017.

TC106 Discussion Sessions

Thursday 21st September 2017, 09:00-15:00

Room 203A/B, COEX Conventio

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Unsaturated Soils Workshop at ICSMGE, Seoul 2017

TC106 is organising a workshop on Unsaturated Soils at the 19th International Conference on Soil Mechanics and Geotechnical Engineering at Seoul in September 2017.

The State of Practice in Unsaturated Soil Mechanics

TC106 Workshop. Wednesday 20th September 2017, 09:00-10:3

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Blight Lecture at ICSMGE, Seoul 2017

Blight Lecture

The 19th International Conference on Soil Mechanics and Geotechnical Engineering at Seoul, September 2017 will host the 2nd Blight Lecture. The Blight Lecture is the Honour Lecture for Unsaturated Soils, nominated by the TC106 committee.

Professor Delwyn Fredlund

The 2nd Blight Le

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7th International Conference on Unsaturated Soils


On behalf of TC106 and Hong Kong Geotechnical Society, the HKUST is pleased to invite you to attend the 7th International Conference on Unsaturated Soils (UNSAT2018) in August 2018. This conference will provide an excellent opportunity for worldwide academics, engineers, scie

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2nd PanAmerican Conference on Unsaturated Soils

On behalf of the Unsaturated Soils Technical Committee of the Geo-Institute (G-I) of the American Society of Civil Engineers (ASCE), and the TC 106 committee on Unsaturated Soils of the International Society of Soil Mechanics and Geotechnical Engineering (ISSMGE), you are cor

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Unsaturated Soil Mechanics in Transportation Geotechnics

A session on Unsaturated Soils was organised by David Toll, Eduardo Alonso and Claudia Zapata at the 3rd International Conference on Transportation Geotechnics in Guimarães, Portugal in 2016. The papers are available on-line as Chapter 2: Unsaturated Soil Mechanics in Tran

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3rd European Conference on Unsaturated Soils, Paris 2016

The Proceedings of the 3rd European Conference on Unsaturated Soils, Paris 2016 are available on-line at:

The happy delegates who attended the conference are shown below!

E-UNSAT 2016 Group Photo

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Host Member Society: UK

Short name: Unsaturated Soils (TC106)

GeoWorld GroupUnsaturated Soils (TC106)

Contact Technical Committee : Unsaturated Soils