【摘要】 采空地面塌陷是门城镇地区危害性最严重的地质灾害类型。根椐实地勘察资料 ,论述了地面塌陷的分布特征和形成条件 ;选取与塌陷密切相关的 1 1个因素 ,采用二级模糊综合评判法对地面塌陷的危险度进行了分区预测。更多还原

【Abstract】 Gob collapse is the most serious geological disaster type in Mencheng Town,Beijing.According to the survey’s data in the field, the authors discuss the characteristics of ground collapse distribution and its formation, and choose eleven factors which are much connected with the collapse. Using the two stage fuzzy comprehensive evaluation, the risk degrees of ground collapse at Mencheng Town are divided into three classes and the region is divided into risk zone , relative risk zone and relative stability zone correspondingly. The evaluating results can better reflect the facts, and can provide a scientific basis for the disaster control and the city construction planning.更多还原