Coupled hydro-mechanical processes in crytalline rock and ininduratedand plastic clays: A comparative discussion
This paper provides a comparative discussion of coupledhydromechanical processes in three different geological formations:crystalline rock, plastic clay, and indurated clay. First, the importantprocesses and associated property characteristics in the three rock typesare discussed. Then, one particular hydromechanical coupling is broughtup for detailed consideration, that of pore pressure changes in nearbyrock during tunnel excavation. Three field experiments in the three rocktypes are presented and their results are discussed. It is shown that themain physical processes are common to all three rock types, but with verydifferent time constants. The different issues raised by these cases arepointed out, and the transferable lessons learned are identified. Suchcross fertilization and simultaneous understanding of coupled processesin three very different rock types help to greatly enhance confidence inthe state of science in this field.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 927252
- Report Number(s):
- LBNL-63369; R&D Project: GDECOVALEX; TRN: US200811%%74
- Resource Relation:
- Conference: Second Internatinal GeoProc2006 Symposium,Nanjiing, China, May 2006
- Country of Publication:
- United States
- Language:
- English
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