Experimental study on static and dynamic compression mechanical properties of filled rock joints

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作者
Chai, Shaobo [1 ,2 ,3 ]
Wang, Hao [1 ]
Yu, Liyuan [2 ]
Shi, Jiehui [1 ]
Abi, Erdi [3 ]
机构
[1] School of Civil Engineering, Chang’ an University, Xi’an,710064, China
[2] State Key Laboratory for GeoMechanics and Deep Underground Engineering, China University of Mining & Technology, Xuzhou,221116, China
[3] School of River & Ocean Engineering, Chongqing Jiaotong University, Chongqing,400045, China
关键词
The static and dynamic compression mechanical properties of the prefabricated artificial filled rock joints specimens with different fillings and different joint thicknesses are tested; respectively; Then; the strength; deformation; wave propagation and energy dissipation laws of the filled joints are analyzed. The experimental results show that the static and dynamic compression strength of filled joints increases with the strength of filling materials while decreases with the filling thickness. The deformation characteristics of filled joints under static and dynamic compression are positively correlated with the properties of filling materials and the thickness of filled joints. With the increasing of the filling thickness; the reflection coefficient increases while the transmission coefficient decreases. With the increase of the strength of the fillings; the reflection coefficient decreases while the transmission coefficient increases. The energy dissipation ratio decreases with the increase of the filliing thickness and increases with the increase of the strength of the filling material. © 2020 Hampstead Psychological Associates. All rights reserved;
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