文献类型：期刊文献

英文题名：Dynamic crack propagation and energy dissipation of slate under coupled bedding and water effects

作者：Tian, Xingchao Tang, Jun Zhang, Yonggang Zhang, Zhijun Liu, Zhennan

通信作者：Zhang, YG[1]

机构：[1]Guizhou Inst Technol, Coll Civil Engn Transportat & Water Conservancy, Guiyang 550025, Peoples R China;[2]Xuzhou Coll Ind Technol, Sch Architecture Engn, Xuzhou 221003, Peoples R China;[3]Zhejiang Shuren Univ, Coll Urban Construction, Hangzhou, Peoples R China

第一机构：贵州理工学院

通信机构：corresponding author), Zhejiang Shuren Univ, Coll Urban Construction, Hangzhou, Peoples R China.

年份：2026

卷号：14

外文期刊名：FRONTIERS IN EARTH SCIENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001807095300001)】；

基金：The author(s) declared that financial support was received for this work and/or its publication. This work was supported by the Guizhou Science and Technology Support Program Project (Qian Ke He Zhi Cheng (2026) General No. 305), Guizhou Science and Technology Plan Project (Qian Ke He Ji Chu QN (2025) No. 223), Scientific Research Startup Project for High-Level Talents, Guizhou Institute of Technology (2025GCC023), and the National Natural Science Foundation of China (52368059).

语种：英文

外文关键词：layered rock; water-rock coupling; impact failure; crack propagation; energy dissipation

摘要：Coupled effects of bedding and water significantly influence the dynamic response and stability of rock mass structures. Layered slate served as the primary subject of this investigation. Standard slate samples with diverse bedding angles were prepared under both natural and saturated states. Impact compression tests were performed using a Split Hopkinson Pressure Bar system. High-speed photography enabled the systematic analysis of dynamic crack propagation, mechanical properties, and energy dissipation. The intrinsic influence mechanisms of water and bedding were subsequently explored. Experimental results revealed a dual effect of water on crack development. Bedding angle determined the inhibitory or promotive influence of water on crack propagation. Natural slate samples with 0 degrees-45 degrees bedding angles exhibited failure along the impact loading direction. Samples with 60 degrees-90 degrees bedding angles demonstrated failure along the bedding planes. Saturation induced failure along bedding planes for most bedding angles. Samples with a 0 degrees bedding angle did not follow this pattern. The most critical bedding angles for natural and saturated slate were 45 degrees and 60 degrees, respectively. These findings provide a valuable theoretical basis for the design and construction of layered rock mass engineering.