TC106 Unsaturated Soils

Unsaturated Soils

Host Member Society: Spain

Short name: Unsaturated Soils (TC106)

GeoWorld GroupUnsaturated Soils (TC106)

ISSMGE Interactive Technical Talk Episode 6: Unsaturated Soils (TC106)

The sixth episode of International Interactive Technical Talk has just been launched and is supported by TC106. Prof. Enrique Romero, Dr. Maha Saleh and Liuxin Chen are discussing with Dr. Marc Ballouz about "Unsaturated Soils".

Watch ISSMGE Interactive Technical Tal

Read More

International Workshop on Landslides Susceptibility and Adaptability in South East Asia: Theory to Practice

Given the role of unsaturated soil mechanics in the topic of the International workshop on Landslides Susceptibility and Adaptability in South-East Asia: Theory to Practice, we are pleased to consider attending this workshop, which is scheduled from 29-30 March 202

Read More

Application of Unsaturated Soil Mechanics on the Analysis of Slopes

Indian Institute of Technology Mandi, Durham University, UK and Universiti Kebangsaan Malaysia (UKM) organised a 2-day training course on the "Application of Unsaturated Soil Mechanics on the Analysis of Slopes", 24-25 February 2022. 


The speakers were

Read More


A pre-conference workshop entitled, Relevance of Unsaturated Soil Mechanics in Practice has been organized in association with TC 106 as part of the Indian Geotechnical Conference (IGC), the annual national flagship event of the Indian Geotechni

Read More

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 Enrique Romero Spain
2 Vice Chair Bernardo Caicedo Colombia
3 Secretary Anthony Leung Hong Kong Special Administrative Region
4 Nominated by TC Chair Pierre Delage France
5 Nominated by TC Chair David Toll United Kingdom
6 Nominated by TC Chair Adrian Russell Australia
7 Nominated Member Atsushi Iizuka Japan
8 Nominated Member Hirofumi Toyota Japan
9 Nominated Member Mayu Tincopa Peru
10 Nominated Member Akbar Javadi United Kingdom
11 Nominated Member Simon Wheeler United Kingdom
12 Nominated Member Chao Zhou Hong Kong Special Administrative Region
13 Nominated Member Viet Hung HOANG Vietnam
14 Nominated Member Seong-Wan Park South Korea
15 Corresponding Member Hadi Khabbaz Australia
16 Corresponding Member Arman Khoshghalb Australia
17 Corresponding Member Carmine Gerardo Gragnano Italy
18 Nominated Member Seyed Mohsen Haeri Iran
19 Nominated Member Harianto Rahardjo SEAGS
20 Corresponding Member Francesca Casini Italy
21 Corresponding Member Christopher Beckett United Kingdom
22 Corresponding Member Xu Li China
23 Nominated Member Yu-Jun CUI France
24 Corresponding Member Hermann Peiffer Belgium
25 Nominated Member Masrouri Farimah France
26 Nominated Member Rafaela Cardoso Portugal
27 Nominated Member David Masin Czech & Slovak Republics
28 Nominated Member Katia Bicalho Brazil
29 Nominated Member Gilson Gitirana Brazil
30 Corresponding Member Tácio Mauro Pereira de Campos Brazil
31 Nominated Member Behrouz Gatmiri Iran
32 Nominated Member S. Rajesh India
33 Nominated Member Katerina Tsiampousi Greece
34 Corresponding Member Panos Sitarenios Greece
35 Nominated Member Michael Bardanis Greece
36 Nominated Member Alessio Ferrari Switzerland
37 Nominated Member Laureano Hoyos United States
38 Nominated Member Xiong Zhang United States
39 Nominated Member Changfu Wei China
40 Corresponding Member Sandra Houston United States
41 Corresponding Member Chan-Young Yune South Korea
42 Nominated Member Gabriela Brandusa Cazacu Romania
43 Nominated Member Nasser Khalili Australia
44 Corresponding Member Adrian Russell Australia
45 Corresponding Member Apiniti Jotisankasa Thailand
46 Nominated Member Robert Charlier Belgium
47 Nominated Member Viroon Kamchoom Thailand
48 Nominated Member Kartal Toker Turkey
49 Nominated Member Alfrendo Satyanaga Indonesia
50 Nominated Member Chia-Cheng Fan Chinese Taipei
51 Nominated Member Delwyn Fredlund Canada
52 Nominated Member Cristina Jommi Netherlands
53 Nominated Member Sai Vanapalli Canada
54 Nominated Member EDUARDO ROJAS GONZALEZ Mexico
55 Nominated Member Alberto Ledesma Spain
56 Nominated Member Wojciech Solowski Finland
57 Corresponding Member Javier Quintana Pérez Spain
58 Nominated Member Alfrendo Satyanaga Kazakhstan
59 Corresponding Member Miriam Martínez Ruiz Spain
60 Nominated Member Nuria Pinyol Spain
61 Nominated Member Emőke Imre Hungary
62 Nominated Member Claudio Mancuso Italy
63 Nominated Member LUCIANO OLDECOP Argentina
64 Nominated Member Gabriele Della Vecchia Italy
65 Corresponding Member Antonio Gens Spain
66 Nominated Member Daichao Sheng Australia
67 Corresponding Member Geoff Chao United States
68 Nominated Member HAI MINH NGUYEN Vietnam
69 Corresponding Member Partha Mishra Australia
70 Nominated Member Diego Manzanal Argentina
71 Nominated Member Liangtong Zhan China
72 Nominated Member Katherine Yates New Zealand
73 Nominated Member Paul Jaquin New Zealand
74 Nominated Member Kazimierz Garbulewski Poland
75 Nominated Member SW Jacobsz South Africa
76 Nominated Member Frans van der Merwe South Africa
77 Nominated Member Zdzisław Skutnik Poland
78 Corresponding Member Tomoyoshi NISHIMURA Japan
79 Corresponding Member Marius Milatz Germany
80 Nominated Member Sugeng Krisnanto Indonesia
81 Nominated Member T. Thyaaraj India
82 Corresponding Member T.V Bharat India

Contact Technical Committee : Unsaturated Soils

This message will be sent to TC106 Unsaturated Soils officers