Coupled Thermo-Hydro-Mechanical Processes of Fractured Media: Mathematical and Experimental Studies : Recent Developments of Decovalex Project for Radioactive Waste Repositories

by Stephansson, Ove; Jing, Lanru; Tsang, Chin-Fu; Stephansson, Ove; Jing, Lanru; Tsang, Chin-Fu

• ISBN13: 9780444825452
• ISBN10: 0444825452
• Format: Hardcover
• Copyright: 1996-11-01
• Publisher: Elsevier Science Serials

Summary

This work brings together the results, information and data that emerged from an international cooperative project, DECOVALEX, 1992-1995. This project was concerned with the mathematical and experimental studies of coupled thermo(T) -hydro(H) -mechanical(M) processes in fractured media related to radioactive waste disposal.The book presents, for the first time, the systematic formulation of mathematical models of the coupled T-H-M processes of fractured media, their validation against theoretical bench-mark tests, and experimental studies at both laboratory and field scales. It also presents, for the first time, a comprehensive analysis of continuum, and discrete approaches to the study of the problems of (as well as a complete description of), the computer codes applied to the studies.The first two chapters provide a conceptual introduction to the coupled T-H-M processes in fractured media and the DECOVALEX project. The next seven chapters give a state-of-the-art survey of the constitutive models of rock fractures and formulation of coupled T-H-M phenomena with continuum and discontinuum approaches, and associated numerical methods. A study on the three generic Bench-Mark Test problems and six Test Case problems of laboratory and field experiments are reported in chapters 10 to 18. Chapter 19 contains lessons learned during the project.The research contained in this book will be valuable for designers, practising engineers and national waste management officials who are concerned with planning, design and performance, and safety assessments of radioactive waste repositories. Researchers and postgraduate students working in this field will also find the book of particular relevance.

Table of Contents

FOREWORD	VII	(4)
PREFACE	XI
A Conceptual Introduction to Coupled Thermo-Hydro-Mechanical Processes in Fractured Rocks	1	(24)
Chin-Fu Tsang
Ove Stephansson
Validation of Mathematical Models Against Experiments for Radioactive Waste Repositories -- DECOVALEX Experience	25	(32)
L. Jing
C.F. Tsang
O. Stephansson
F. Kautsky
Constitutive Models for Rock Joints	57	(36)
Y. Ohnishi
T. Chan
L. Jing
Coupled Thermohydroelasticity Phenomena in Variably Saturated Fractured Porous Rocks -- Formulation and Numerical Solution	93	(42)
Jahan Noorishad
Chin-Fu Tsang
Continuum Representation of Coupled Hudromechanic Processes of Fractured Media: Homogenisation and Parameter Identification	135	(30)
A. Stietel
A. Millard
E. Treille
E. Vuillod
A. Thoravel
R. Ababou
FEM Analysis of Coupled THM Processes in Fractured Media with Explicit Representation of Joints	165	(16)
S-M. Tijani
G. Vouille
Distinct Models for the Coupled T-H-M Processes: Theory and Implementation	181	(32)
Mikko P. Ahola
Alain Thoraval
Asadul H. Chowdhury
Modelling Approaches for Discrete Fracture Network Flow Analysis	213	(18)
A.W. Herbert
Influence of Fictitious Outer Boundaries on the Solution of External Field Problems	231	(14)
G. Rehbinder
Generic Study of Coupled THM Processes of Nuclear Waste Repositories as Far-field Initial Boundary Value Problems (BMTI)	245	(36)
A. Millard
A. Stietel
A. Bougnoux
E. Vuillod
Generic Study of Coupled T-H-M Processes of Nuclear Waste Repositories as Near-field Initial Boundary Value Problems (BMT2)	281	(30)
T. Chan
K. Khair
E. Vuillod
Generic Study of Coupled T-H-M Processes in the Near-field (BMT3)	311	(30)
P. Wilcock
Mathematical Simulations of Coupled THM Processes of Fanay-Augeres Field Test by Distinct Element and Discrete Finite Element Methods	341	(28)
A. Rejeb
Experimental Investigation and Mathematical Simulation of Coupled T-H-M Processes of the Engineered Buffer Materials, the TC3 Problem	369	(24)
T. Fujita
A. Kobayashi
L. Borgesson
Coupled Mechnical Shear and Hydraulic Flow Behaviour of Natural Rock Joints	393	(32)
Mikko P. Ahola
Sitakanta Mohanty
Axel Makurat
Experimental Investigation and Mathemetical Simulation of a Borehole Injection Test in Deformable Rocks	425	(24)
J. Rutqvist
S. Follin
K. Khair
S. Nguyen
P. Wilcock
Experimental Study on the Coupled T-H-M Processes of Single Rock Joint with a Triaxial Test Chamber	449	(18)
J. Polla
A. Kuusela-Lahtinen
J. Kajanen
Experimental Study on Dynamic Behaviour of Rock Joints	467	(28)
Mikko P. Ahola
Sui-Min Hsiung
Daniel D. Kana
Lessons Learned from DECOVALEX	495	(12)
L. Dewiere
F. Plas
C.F. Tsang
Short Description of VIPLEF Code	507	(6)
S-M Tijani
Short Description of FLAC Version 3.2	513	(10)
Jan I. Israelsson
Short Description of UDEC(*) and 3DEC(*)	523	(6)
Jan I. Israelsson
The NAPSAC Fracture Network Code	529	(10)
P. Wilcock
Description of the Computer Code FRACON	539	(6)
T.S. Nguyen
THAMES	545	(6)
Y. Ohnishi
A. Kobayashi
ROCMAS Simulator; A Themohydromechanical Computer Code	551	(8)
Jahan Noorishad
Chin-Fu Tsang
Short Description of CASTEM 2000 and TRIO-EF	559	(6)
A. Millard
ABAQUS	565	(6)
L. Borgesson
SUBJECT INDEX	571