Paper Title:
Experimental Study and Numerical Simulation of Rock Mass Seepage Characteristics of Tunnel Engineering
  Abstract

In this research, the MTS815 rock mechanics test system , produced by American MTS co., has been conducted with transient method to study the seepage characteristics of rock under different confining pressure. Experiments have obtained the following results: with the confining pressure increased, penetration ability of water in rock decreased, but the start-up pressure gradient increased; permeability of rock decreased with the increase of effective confining pressure, which had negative exponent functional relationship between them. Based on previous researches, the study has established filtration equation which couples with stress field, temperature field and seepage field. Combined with the practical tunnel project, numerical simulated the variation characteristics of deformation of tunnel surrounding rock, pore pressure and seepage field under three fields non-coupling and coupling, numerical simulation obtained: the difference among deformation of surrounding rock, pore pressure and seepage field distribution under the coupling and non-coupling is remarkable, so it must consider the simultaneous action of fluid - solid - heat when we need to research the working of seepage law of groundwater in tunnel rock mass, and the research results enjoy important theoretical significance and practical application value.

  Info
Periodical
Advanced Materials Research (Volumes 243-249)
Edited by
Chaohe Chen, Yong Huang and Guangfan Li
Pages
3538-3545
DOI
10.4028/www.scientific.net/AMR.243-249.3538
Citation
Y. D. Jiang, L. Xiong, X. Y. Yang, Q. Zhen, Z. L. Yan, "Experimental Study and Numerical Simulation of Rock Mass Seepage Characteristics of Tunnel Engineering", Advanced Materials Research, Vols. 243-249, pp. 3538-3545, 2011
Online since
May 2011
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Price
$32.00
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