Paper
Advance Theory of Thermo-hydro-mechanical Behavior of GMZ Bentonite from China
- Authors:
- WJ. Niu
- Abstract
- This paper intends to give a better understanding of the THM behavior of GMZ bentonite with mathematical models based on the test results. Results indicate that water content and dry density affect not only thermal conductivity but also unconfined compressive strength and elastic modulus of GMZ-1 Na bentonite. Saturated permeability of GMZ-1 Na bentonite increases with temperature increase which is a linear relationship and decreases with dry density increase. At last, temperature effects on intrinsic permeability of bentonite were investigated. For GMZ-1 Na bentonite, dry density can significantly alter the intrinsic permeability. However temperature only slightly alters the intrinsic permeability of GMZ-1 Na bentonite. Mathematical models of THM behavior derived from sophisticated laboratory experiments can facilitate the establishment of numerical models to predict the behavior of full scale experiments in projects.
- Keywords
- GMZ-1 Na bentonite; water content;dry density; thermal conductivity;temperature;saturated perm eability
- StartPage
- 53
- EndPage
- 55
- Doi