多功能岩石节理全剪切–渗流耦合试验系统研制与应用

doi:10.13722/j.cnki.jrme.2018.0359

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Abstract A novel multi-functional shear-flow coupled test system for rock joints was developed to reveal the (long term) mechanical properties，flow laws and failure mechanism for rock joints. The test system is mainly consisted of four parts：a host frame and servo loading system，a shear-flow box and sealing system，a seepage servo control system，a data measurement and acquisition system. The dynamic sealing problem of coupled shear-flow tests with 10% shear displacement(20 mm) of joint length under the water pressure of 3 MPa was settled. The loading methods of constant normal stress，constant normal displacement and constant normal stiffness can be implemented. The electronic balance and flow meter were used together to solve the problem of wide-range flow measurement. The pressure stabilizing system and differential pressure control system were developed to keep the water pressure constant in the water inlet and outlet. A hydraulic servo loading system under quasi static condition and a motor servo loading system under creep condition were designed to accomplish the corresponding experiments. The hydro-mechanical coupling experiments under three stress boundary conditions were performed to certify the accuracy and reliability of the test system.

Key words： rock mechanics rock joints shear-flow high seepage pressure constant normal stiffness

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	Articles by authors
	XIA Caichu1
	2
	QIAN Xin1
	2
	GUI Yang1
	2
	ZHUANG Xiaoqing1
	2
	YU Qiangfeng1
	2
	ZHANG Liang3

Cite this article:

XIA Caichu1,2,QIAN Xin1, et al. A novel multi-functional shear-flow coupled test system for rock joints and its application[J]. , 2018, 37(10): 2219-2231.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2018.0359 OR https://rockmech.whrsm.ac.cn/EN/Y2018/V37/I10/2219

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