岩石节理应力–渗流耦合试验系统研究进展

doi:10.13722/j.cnki.jrme.2014.s2.009

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摘要岩石节理应力–渗流耦合特性对岩体工程的稳定性有显著影响，是近20 a来岩石力学的热点问题之一。室内的岩石节理应力–渗流耦合试验是研究节理应力–渗流耦合特性的有效手段，而节理应力–渗流耦合试验系统是进行试验研究的基础条件。从三方面总结国内外节理应力–渗流耦合试验系统的研究进展：(1) 节理剪切过程中常法向刚度(CNS)应力边界条件的实现；(2) 节理法向应力–渗流耦合试验系统的研究进展；(3) 节理全剪切–渗流耦合试验系统的最新进展，包括渗流边界条件的实现、剪切盒密封新技术以及高渗透水压的实现。在分析现有节理全剪切–渗流试验系统不足的基础上，根据目前深部地下工程中所遇到的高应力、高渗透水压情况，提出了节理全剪切–渗流耦合试验系统新的发展方向。

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	肖维民1
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	夏才初2
	邓荣贵1

关键词 ：岩石力学；岩石节理；常法向刚度；法向应力&ndash, 渗流耦合试验；全剪切&ndash, 渗流耦合试验；剪切盒密封系统

Abstract：The coupled stress-flow properties of rock joints，which have remarkable impacts on the stability of rock masses，have become a hot problem of rock mechanics in recent two decades. The most effective way to study the coupled stress-flow characteristics of rock joint is to perform laboratory coupled stress-flow tests. Hence，the coupled stress-flow test system that is able to achieve the true coupled stress-flow process can provide an important basis for these researches. In this paper，three aspects of advances in the development of coupled stress-flow test system at home and abroad are involved as follows. (1) The methods adopted to achieve constant normal stiffness(CNS) conditions during shearing process are summarized. (2) Advances in coupled stress-flow test of rock joint with only normal loadings are reviewed. (3) Recent advances in the development of coupled shear-flow test system for rock joints，which include the realization of flow boundary conditions，new sealing system of shear box and technologies to achieve high hydraulic pressure during coupled shear-flow test，are introduced. The advantages and deficiencies of different coupled shearing-flow test systems developed in recent years are analyzed in detailed，on the basis of which new challenges for developing new coupled shearing-flow test system are proposed by considering high stress and high hydraulic pressure conditions existing in deep underground excavation programs.

Key words： rock mechanics rock joints constant normal stiffness coupling normal stress-flow test coupling shearing-flow test sealing system of shear box

引用本文:

肖维民1，2，夏才初2，邓荣贵1. 岩石节理应力–渗流耦合试验系统研究进展[J]. 岩石力学与工程学报, 2014, 33(S2): 3456-3465.
XIAO Weimin1，2，XIA Caichu2，DENG Ronggui1. ADVANCES IN DEVELOPMENT OF COUPLED STRESS-FLOW TEST SYSTEM FOR ROCK JOINTS. , 2014, 33(S2): 3456-3465.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2014.s2.009 或 https://rockmech.whrsm.ac.cn/CN/Y2014/V33/IS2/3456

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