摘要:
乌东煤矿由采矿活动引发的地质灾害主要有地裂缝和地面塌陷。查清矿区地质灾害类型、规模和分布,分析地质灾害成因、危害程度和发展趋势,对煤矿绿色矿山建设和可持续发展至关重要。以WorldView-2数据为依据,在建立遥感解译标志基础上,采用遥感解译与野外验证相结合、人机交互解译与计算机自动信息提取相结合的方法,圈定了乌东煤矿由采矿活动引发的地质灾害点及其集中发育区,测量了地质灾害体的展布方向、几何参数和影响面积。经分析,乌东煤矿地裂缝和地面塌陷的特殊形态和分布特征主要是煤层赋存状况、井田开采工艺及煤层顶板管理方式、煤层顶底板岩土工程稳定性等因素共同作用的结果,从而为乌东煤矿相关部门进行地质灾害防治决策提供了依据。
Abstract:
Geological disasters caused by mining activities in the Wudong coal mine are mainly ground crevice and ground collapse. Therefore, making a thorough investigation of the type, size and distribution of geological disasters in the mining area and analyzing the causes, damage degree and development trend of the geological disasters are very important for the green mine construction and sustainable development. With the WorldView-2 data as the basis, on the basis of the establishment of remote sensing interpretation keys, by using the methods of the combination of remote sensing interpretation and field verification and the combination of human - computer interactive interpretation and computer automatic information extraction, the author delineated the geological disasters points and centralized growth areas caused by mining activities in the Wudong coal mine, and. measured the distribution direction, geometric parameters and influenced area of the geological disaster bodies. An analysis shows that the special shape and distribution features of ground crevices and ground collapses in the Wudong coal mine result from the joint action of the coal seam condition, coal mining exploitation technology and coal seam roof management mode, geotechnical engineering stability of the seam roof and floor slate. The results obtained by the author provide the data basis for prevention and control of geological disasters by Wudong coal mine ’ s relevant management department.