厚黄土薄基岩地区开采沉陷规律探讨

地下开采-覆岩移动-地表沉陷之间存在着互为因果的链动关系。不同岩性、不同力学性质的上覆岩土层对地下煤层开采的响应性是不同的。文中在前人有关研究成果的基础上，探讨了在厚黄土薄基岩条件下。地下开采引起的地表沉陷的规律性。研究认为，在厚黄土层覆盖区，煤层上覆基岩是地表黄土层沉陷变形的控制层，黄土层本身的工程地质特性、地形地貌条件和地下开采程度对地表沉陷都有一定的影响。这一研究成果对减缓和控制地下开采引起的地表变形破坏有重要意义。

Laws of mining subsidence in thick yellow soil and thin bedrock layer areas

There exists a cause-effect chain among underground mining,rock movement and surface subsidence.The cap rock and soil layer bearing different lithology and different mechanics properties exerts different responsiveness to the underground coal bed mining.On the foundation of the preceding related research results,this paper explored,under the conditions of thick yellow soil and thin rock layer,the laws of surface subsidence caused by underground mining.The paper reached the conclusion that,in the area covered by thick yellow soil layer,the bedrock on coal layer is the control layer which causes subsidence of the surface yellow soil layer.The engineering geology characteristics of yellow soil layer,the terrain and physiognomy conditions and the underground mining degree influence the surface subsidence to certain extent.The research is of great significance in slowing down and controlling the surface subsidence caused by underground mining.