岩石应力–渗流耦合真三轴试验系统的研制与应用

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摘要针对深部岩石所处的高地应力、强渗透水压等复杂的赋存环境特点，研制岩石应力–渗流耦合真三轴试验系统，并详细介绍系统的主要结构、功能和使用方法。该系统可独立伺服控制施加三维应力，利用声测系统对试件在三维应力和渗透水压作用下的裂隙扩展演化过程进行实时跟踪。通过对不同渗透水压条件下大尺寸花岗岩人造节理试件的真三轴加载试验，研究三维应力和渗透水压对渗透特性的影响，试验结果很好地反映出深部岩体的应力–渗流耦合特性。岩石应力–渗流耦合真三轴试验系统的研制和试验，丰富深部高地应力、强渗透水压等环境下岩石力学性质的研究手段，可为采动围岩遇水作用的稳定性及渗流灾害控制技术的研究提供科学的试验基础。

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关键词 ：岩石力学；应力&ndash, 渗流耦合；大尺寸；高渗透水压；真三轴试验系统

Abstract：According to complicated occurrence environment such as high in-situ stress and strong seepage pressure，a true triaxial rock test system of coupled stress-seepage is developed，and its main structure，function and usage method are introduced in detail. This system could apply different three-dimensional(3D) stress values independently by servo control and real-time track the process of fissure propagation and evolution by acoustic detection system under 3D stress and seepage pressure. The influence of 3D stress and seepage pressure on permeability characteristics is studied through true triaxial rock test system on granite joint specimens with large size under different seepage pressures，and the test results better reveal the coupled stress-seepage characteristics of deep rock. The development of rock test system of coupled stress-seepage and test results enrich the method of studying rock mechanics properties under high in-situ stress and strong seepage pressure，and provide scientific experimental basis for research of stability and seepage disaster control technology of mining surrounding rock when meeting water.

Key words： rock mechanics coupled stress-seepage large size high seepage pressure true triaxial test system

收稿日期: 2013-05-21

引用本文:

尹立明，郭惟嘉，陈军涛 . 岩石应力–渗流耦合真三轴试验系统的研制与应用[J]. 岩石力学与工程学报, 2014, 33(sl): 2820-2826.
YIN Liming，GUO Weijia，CHEN Juntao. DEVELOPMENT OF TRUE TRIAXIAL ROCK TEST SYSTEM OF COUPLED STRESS-SEEPAGE AND ITS APPLICATION. , 2014, 33(sl): 2820-2826.

链接本文:

http://www.rockmech.org/CN/Y2014/V33/Isl/2820

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