Analysis of influencing factors on self-healing of mining-induced overlying rock fissures in coal mine
Xie Qihong1,Yang Jiangshan1, Shao Xianjie2, Chu Chengcheng1, Wang Xuming1, Liu Xiaoxiao1
1. Puyang Petrochemical Vocational and Technical College, Puyang 457000, China; 2. School of Vehicle and Energy, Yanshan University, Qinhuangdao 066004, China
Under certain conditions, there is a phenomenon of ' self-repair ' in the cracks produced by the overburden failure caused by coal seam mining in mine. In order to clarify the interaction of various influencing factors in the self-healing mechanism of overburden rock fractures, the influencing factors of self-healing of overburden rock fractures were systematically analyzed based on the relevant experimental data and theoretical research of mine production. It was found that the influencing factors mainly included the lithology and mineral composition of the overburden rock itself, buried depth, hydrological conditions, mining parameters, repair time and temperature after the cracks were generated. The self-healing effects of different influencing factors on overburden fractures were compared and analyzed, and the hierarchical evaluation index system of influencing factors was preliminarily established, in order to provide positive help for other experimental studies on self-healing of mining-induced rock fractures in the future.
谢启红1,杨江山1,邵先杰2,褚程程1,王旭明1,刘潇潇1. 矿井采动覆岩裂隙自修复的影响因素分析[J]. 煤炭与化工, 2024, 47(10): 17-21.
Xie Qihong1,Yang Jiangshan1, Shao Xianjie2, Chu Chengcheng1, Wang Xuming1, Liu Xiaoxiao1. Analysis of influencing factors on self-healing of mining-induced overlying rock fissures in coal mine. CCI, 2024, 47(10): 17-21.