平顶山煤矿区疏干排水引起的岩溶塌陷致塌机理分析与预测  

Analysis on Karst Collapse Mechanism Caused by Coal Mining Area Water Drainage in Ping Dingshan and Prediction of Hydraulic Environment

作　　者：苏凯峰[1] 路东臣[1] 

机构地区：[1]河南省国土资源科学研究院,河南郑州450053

出　　处：《资源导刊（地球科技版）》2014年第1期27-29,32,共4页

摘　　要：传统的解释岩溶地面塌陷机理的理论很多，应用最新的岩溶致塌机理分析研究平顶山七矿及其附近地区的岩溶塌陷灾害，取得比较令人满意的效果。该岩溶致塌理论的核心内容就是岩溶塌陷是力的作用失去平衡使土体破坏的结果。在一系列力的作用下，岩土体内某一点某方向平面剪切应力等于岩土体的抗剪强度时，这一点便开始破坏，该点破坏后，其应力便转移到其他点。如此链式发展下去，破坏点逐渐增多，贯通形成一个破坏面，沿破坏面岩土体向洞中塌陷或滑动，当顶板不能承受其上岩土体的自重压力时，塌陷至地表，形成岩溶塌坑。Many traditional theories explained the mechanism of karst ground collapse, the latest karst collapse mechanism analysis and research obtain more satisfactory result to the karst collapse disaster of 7 mines and its surrounding areas in Ping Dingshan. The core content of the karst collapse theory is the result of karst collapse is caused by destruction of soil from imbalance of forces. Under a series of forces, shear stress of some point of rock and soil body is equal to the shear strength of rock mass, thus it begins to be damages and the stress is transferred to the other points. In these chain-like damages, destroy points increased gradually, and form a damaged surface, subsidence or sliding along the surface to the hole of rock and soil mass, when its roof unable to bear the weight of rock and soil mass, it falls to the earth surface to form karst collapse.

关 键 词：岩溶塌陷致塌机理 疏干排水 平顶山矿区 岩溶稳定系数 岩溶地面塌陷力学预测模型 

分 类 号：P642.21[天文地球—工程地质学]