TC106 Unsaturated Soils

Unsaturated Soils

Host Member Society: UK

Short name: Unsaturated Soils (TC106)

GeoWorld GroupUnsaturated Soils (TC106)

3rd Pan-American Conference on Unsaturated Soils

The 3rd Pan American Conference on Unsaturated Soils, will be held fully on line in Rio de Janeiro, Brazil, from 26th to 28th July 2021. Registration is now open, so do visit the conference site ( and take advantage of the early&nbs

Read More

5th International Colloquium on Unsaturated Soils, UNSATOuargla, Algeria

The 5th International Colloquium on Unsaturated Soils / 5ème Colloque International sur les Sols Non Saturés, UNSATOuargla will be held by the University of Ouargla (Algeria) in collaboration with the unsat-dz network on 16 and 17

Read More

4th European Conference on Unsaturated Soils (E-UNSAT 2020) Online Conference

The 4th European Conference on Unsaturated Soils (E-UNSAT 2020), originally planned to be held in Lisbon, Portugal in June 2020, will now take place as an ONLINE event 19-21st October 2020. The Final Programme is at the website (authors):  https://eunsat2020.tecnico.uli

Read More

4th European Conference on Unsaturated Soils, Lisbon, Portugal (E-UNSAT 2020)

The 4th European Conference on Unsaturated Soils (E-UNSAT2020) with the theme "Unsaturated Horizons" will be held 24 to 26 June 2020 in Lisbon, Portugal. For registration and other details visit

It is organised by Instituto Sup

Read More

3rd Pan-American Conference on Unsaturated Soils - PanAm UNSAT 2021

We invite you to attend the 3rd Pan-American Conference on Unsaturated Soils, which will be held in the city of Rio de Janeiro, Brazil, 25-28 July 2021. The conference will deal with advances in unsaturated soil mechanics and discuss current and future trends in practic

Read More

Asia-Pacific Conference on Unsaturated Soils, Nagoya, Japan

The Japanese Geotechnical Society (JGS) and TC106 of ISSMGE hosted the 7th Asia-Pacific Conference on Unsaturated Soils (AP-UNSAT2019) in August 2019 at Nagoya City, the geographical center of Japan. We had 220 participants from seventeen countries and regions, among which t

Read More

Professor Del Fredlund presents Jennings Lecture at ARCSMGE

Unsaturated Soil Mechanics will have a high profile at the 17th African Regional Conference on Soil Mechanics and Geotechnical Engineering.

Prof. Delwyn Fredlund will present the Jennings Lecture at the conference with the title of Determination of unsaturated soil proper

Read More

Unsaturated Soils Course at the African Regional Conference SMGE

TC106 (with support for TC107 on Lateritic Soils) is running a Course on Unsaturated Soil Mechanics during the 17th African Regional Conference on Soil Mechanics and Geotechnical Engineering in Cape Town, South Africa on Monday 7th October, 2019.

Presentations will be given by

Read More

Vol. 5, Issue 1 of the IJGCH has been released!

We are pleased to announce the special Issue #1 of Volume #5 of the International Journal of Geoengineering Case Histories, an official Journal of the International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE).

This Special Issue presents recent case histor

Read More

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

Read More

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

Read More

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

Read More

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

Read More

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

Read More

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

Read More

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

Read More

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

Read More

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 Nominated Member Liangtong Zhan China
7 Nominated Member Atsushi Iizuka Japan
8 Nominated Member Hirofumi Toyota Japan
9 Nominated Member Changfu Wei China
10 Nominated Member Chia-Cheng Fan Chinese Taipei
11 Nominated Member Laureano Hoyos United States
12 Corresponding Member Geoff Chao United States
13 Corresponding Member Tomoyoshi NIshimura Japan
14 Nominated Member H.W. Sun Hong Kong Special Administrative Region
15 Nominated Member Rafaela Cardoso Portugal
16 Nominated Member Nuria Pinyol Spain
17 Nominated Member Kazimierz Garbulewski Poland
18 Nominated Member Javier Quintana Spain
19 Nominated Member Anthony Leung Hong Kong Special Administrative Region
20 Nominated Member Yu-Jun CUI France
21 Nominated Member Behrouz Gatmiri Iran
22 Nominated Member Robert Charlier Belgium
23 Nominated Member Peter Van Impe Belgium
24 Nominated Member S. Rajesh India
25 Nominated Member Delwyn Fredlund Canada
26 Nominated Member Sai Vanapalli Canada
27 Nominated Member Daichao Sheng Australia
28 Nominated Member Indarto Indarto Indonesia
29 Nominated Member Seong-Wan Park South Korea
30 Nominated Member Seyed Mohsen Haeri Iran
31 Nominated Member Huriye Bilsel Turkey
32 Nominated Member Kartal Toker Turkey
33 Nominated Member David Masin Czech & Slovak Republics
34 Nominated Member Michael Bardanis Greece
35 Nominated Member Katerina Tsiampousi Greece
36 Nominated Member S. Sreedeep India
37 Nominated Member Fernando Marinho Brazil
38 Nominated Member Emőke Imre Hungary
39 Nominated Member LUCIANO OLDECOP Argentina
40 Nominated Member DIEGO GUILLERMO MANZANAL Argentina
41 Nominated Member Akbar Javadi United Kingdom
42 Nominated Member Simon Wheeler United Kingdom
43 Nominated Member Alessio Ferrari Switzerland
44 Corresponding Member Chan-Young Yune South Korea
45 Nominated Member Oscar Mooijman Netherlands
46 Nominated Member Cristina Jommi Netherlands
47 Corresponding Member Ehsan Nikooee Netherlands
48 Nominated Member EDUARDO ROJAS GONZALEZ Mexico
49 Nominated Member Claudio Mancuso Italy
50 Nominated Member Gabriele Della Vecchia Italy
51 Nominated Member Harianto Rahardjo SEAGS
52 Nominated Member Gabriela Brandusa Cazacu Romania
53 Nominated Member Nasser Khalili Australia
54 Nominated Member Masrouri Farimah France
55 Nominated Member Wojciech Solowski Finland
56 Corresponding Member Francesca Casini Italy
57 Nominated Member Zdzisław Skutnik Poland
58 Nominated Member Xiong Zhang United States
59 Corresponding Member Sandra Houston United States
60 Corresponding Member Apiniti Jotisankasa Thailand
61 Nominated Member Viroon Kamchoom Thailand
62 Corresponding Member Antonio Gens Spain
63 Corresponding Member Enrique Romero Spain
64 Corresponding Member Hadi Khabbaz Australia
65 Corresponding Member Arman Khoshghalb Australia
66 Nominated Member SW Jacobsz South Africa
67 Nominated Member Frans van der Merwe South Africa
68 Corresponding Member Marius Milatz Germany
69 Corresponding Member Carmine Gerardo Gragnano Italy
70 Corresponding Member Hermann Peiffer Belgium
71 Corresponding Member ORÊNCIO VILAR Brazil
72 Nominated Member Mayu Tincopa Peru
73 Corresponding Member Christopher Beckett United Kingdom
74 Corresponding Member Xu Li China
75 Corresponding Member Panos Sitarenios Greece

Contact Technical Committee : Unsaturated Soils

This message will be sent to TC106 Unsaturated Soils officers