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典型文献
Laboratory-scale investigation of response characteristics of liquid-filled rock joints with different joint inclinations under dynamic loading
文献摘要:
In underground rock engineering,water-bearing faults may be subjected to dynamic loading,resulting in the coupling of hydraulic and dynamic hazards.Understanding the interaction mechanism between the stress waves induced by dynamic loadings and liquid-filled rock joints is therefore crucial.In this study,an auxiliary device for simulating the liquid-filled layer was developed to analyze the dynamic response characteristics of liquid-filled rock joints in laboratory.Granite and polymethyl methacrylate(PMMA)specimens were chosen for testing,and high-amplitude shock waves induced by a split Hopkinson pressure bar(SHPB)were used to produce dynamic loadings.Impact loading tests were conducted on liquid-filled rock joints with different joint inclinations.The energy propagation coefficient and peak liquid pressure were proposed to investigate the energy propagation and attenuation of waves propa-gating across the joints,as well as the dynamic response characteristics of the liquid in the liquid-filled rock joints.For the inclination angle range considered herein,the experimental results showed that the energy propagation coefficient gently diminished with increasing joint inclination,and smaller coeffi-cient values were obtained for granite specimens compared with PMMA specimens.The peak liquid pressure exhibited a gradually decreasing trend with increasing joint inclination,and the peak pressure for granite specimens was slightly higher than that for PMMA specimens.Overall,this paper may provide a considerably better method for studying liquid-filled rock joints at the laboratory scale,and serves as a guide for interpreting the underlying mechanisms for interactions between stress waves and liquid-filled rock joints.
文献关键词:
作者姓名:
Jin Huang;Xiaoli Liu;Danqing Song;Jian Zhao;Enzhi Wang;Jianmin Zhang
作者机构:
State Key Laboratory of Hydroscience and Engineering,Tsinghua University,Beijing,100084,China;Department of Civil Engineering,Monash University,Clayton,VIC,3800,Australia
引用格式:
[1]Jin Huang;Xiaoli Liu;Danqing Song;Jian Zhao;Enzhi Wang;Jianmin Zhang-.Laboratory-scale investigation of response characteristics of liquid-filled rock joints with different joint inclinations under dynamic loading)[J].岩石力学与岩土工程学报(英文版),2022(02):396-406
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B类:
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AB值:
0.460313
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