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 Chan-Young Yune South Korea
7 Nominated Member Alessio Ferrari Switzerland
8 Nominated Member Simon Wheeler United Kingdom
9 Nominated Member Akbar Javadi United Kingdom
10 Nominated Member ORÊNCIO VILAR Brazil
11 Nominated Member DIEGO GUILLERMO MANZANAL Argentina
12 Nominated Member LUCIANO OLDECOP Argentina
13 Nominated Member Emőke Imre Hungary
14 Nominated Member Fernando Marinho Brazil
15 Nominated Member S. Sreedeep India
16 Nominated Member Panagiotis Sitarenios Greece
17 Nominated Member Zdzisław Skutnik Poland
18 Corresponding Member Deneys Schreiner United Kingdom
19 Nominated Member Oscar Mooijman Netherlands
20 Corresponding Member Francesca Casini Italy
21 Nominated Member Wojciech Slowski Finland
22 Nominated Member Farimah MASROURI France
23 Nominated Member Nasser Khalili Australia
24 Nominated Member Gabriela Brandusa Cazacu Romania
25 Nominated Member Harianto Rahardjo SEAGS
26 Nominated Member Gabriele Della Vecchia Italy
27 Nominated Member Claudio Mancuso Italy
28 Nominated Member EDUARDO ROJAS GONZALEZ Mexico
29 Corresponding Member Ehsan Nikooee Netherlands
30 Nominated Member Cristina Jommi Netherlands
31 Nominated Member Michael Bardanis Greece
32 Nominated Member David Masin Czech & Slovak Republics
33 Corresponding Member Kartal Toker Turkey
34 Nominated Member Kazimierz Garbulewski Poland
35 Nominated Member Antonio Gens Spain
36 Nominated Member Rafaela Cardoso Portugal
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 Eduardo Alonso Spain
46 Nominated Member Anthony Leung Hong Kong
47 Nominated Member Yu-Jun CUI France
48 Nominated Member Huriye Bilsel Turkey
49 Nominated Member Seyed Mohsen Haeri Iran
50 Nominated Member Seong-Wan Park South Korea
51 Nominated Member Indarto Indarto Indonesia
52 Nominated Member Daichao Sheng Australia
53 Nominated Member Sai Vanapalli Canada
54 Nominated Member Delwyn Fredlund Canada
55 Nominated Member S. Rajesh India
56 Nominated Member Peter Van Impe Belgium
57 Nominated Member Robert Charlier Belgium
58 Nominated Member Behrouz Gatmiri Iran
59 Nominated Member Liangtong Zhan China

7th Asia-Pacific Conference on Unsaturated Soils

DATE: August 23~25, 2019
Host: The Japanese Geotechnical Society. Supported by: TC106 Unsaturated Soils of ISSMGE

Venue: Nagoya Congress

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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