隐伏碳酸盐岩区第四系松散盖层稳定性分析

在被第四系松散岩类覆盖的碳酸盐岩分布区，由于地下水动力条件改变（如水源超采、矿山排水、矿坑突水等引起的岩溶水位变化），常引发岩溶塌陷地质灾害。为了解第四系松散堆积物厚度与发生岩溶塌陷的关系，通过综合分析山东省岩溶矿区和供水水源地历年来发生的岩溶塌陷分布规律、形态特征及发生过程等，采用应力平衡法剖析了岩溶塌陷的形成机理与松散盖层的稳定性，为隐伏碳酸盐岩区工程地质勘察和岩溶塌陷防治提供参考依据。

Stability analysis of Quaternary loose cover in carbonate rock region

Collapse is apt to develop under the change of groundwater dynamical conditions(e.g.water level change due to over exploitation of groundwater resources,mining drainage,water irruption etc.)in carbonate rock region covered by Quaternary loose bed.In order to figure out the relation between the thickness of Quaternary loose accumulative material and the occurrence of karst collapse,the distribution regularity,the general characteristics and the developing procedure of karst collapse occurring in recent years in karst mining region and water supply companies in Shandong Province have been analyzed.The forming mechanism of karst collapse and the stability of loose cover have been expounded by stress analysis,providing basic data for engineering geological survey and karst collapse prevention in buried carbonate rock region.