College of Civil Engineering, Anhui Jianzhu University
Institute of Geodesy, Anhui University of Science and Technology
Suntuan Coal Mine, Huaibei Coal Mining (Group ) Co. , Ltd.

为了研究孙疃煤矿的地表裂缝发育特征,通过多种现场探测技术手段对研究区1047、10111工作面采煤沉陷区地表裂缝进行了调查监测。结果表明:地层内部裂缝从形成到闭合具有一定周期性,其周期约为4周;相邻外围区裂缝的间距与其距工作面边界的距离呈明显线性正相关关系;外围裂缝发育延伸位置稍滞后于工作面回采位置,其地表宽度经过短暂发育后,增长速率逐渐减小,直到稳定状态;沿垂直于工作面推进方向的多条发育稳定的外围裂缝,其倾角随距工作面边界距离的增大而减小;发育稳定的外围裂缝,其深度与宽度呈对数函数关系。

In order to study the development characteristics of ground fissures in Suntuan Coal Mine, the ground fissures on the mining subsidence area in 1047 working face and 10111 working face in the study area were investigated by various field detection techniques. The results show that: the internal fissures have a certain periodicity from formation to closure, and the period is about 4 weeks; the spacing of adjacent peripheral fissures has a significant positive linear correlation with the distance from the working face boundary; the development and extension position of peripheral fissures slightly lags behind the mining position of working face, and after a short and rapid development, the growth rate of its surface width gradually decreases until it is stable; the dip angle of several stable peripheral fissures along the advancing direction perpendicular to the working face decreases with the increase of the distance from the working face boundary; for the developed stable peripheral fissures, the depth and width show a logarithmic function relationship.

安徽省自然资源科技项目(2020-K-6);安徽省自然科学基金青年项目(2008085QE219,2108085QD169)

王子威,蔡毅,严家平,等. 淮北孙疃煤矿采煤地裂缝发育特征研究[J]. 矿业安全与环保,2023,50(5):116-123.

WANG Ziwei,CAI Yi,YAN Jiaping,et al. Study on development characteristics of ground fissures in Suntuan Coal Mine in Huaibei[J]. Mining Safety & Environmental Protection,2023,50(5):116-123.