从苏锡常地区特定的地质环境背景条件出发,系统分析了地裂缝地质灾害的形成机理,即基岩起伏形态差异、第四纪沉积结构差异和水文地质条件差异是引发地裂缝灾害的内在条件,长期过量开采地下水是诱发地裂缝灾害的外在因素。通过对地裂缝灾害成因类型的系统划分,为今后进一步进行地裂缝灾害分区评价、防治规划等工作提供了先导性意见和理论基础,具有积极的现实意义。 Based on the specific geo-environmental background conditions in Suzhou, Wuxi and Changzhou, the formation mechanism of ground fissure geological disasters is systematically analyzed, that is, the variation of bedrock undulations. The differences of sedimentary structure and hydrogeological conditions in Quaternary are the inherent conditions of ground fissure disasters. Over-exploitation of groundwater is an external factor inducing ground-fissure disasters. By systematically dividing the causes of the type of ground fissure disasters, it provides a pioneering opinion and theoretical foundation for the further assessment of zoning of ground fissure disasters, prevention and control planning and so on, which has a positive and practical significance.