灾害学2013，Vol.28Issue(2)：34-39,6.
郑州市轨道交通2号线地质灾害危险性评估
Risk Evaluation of Geological Hazards in Zhengzhou Rail Transit Line 2
摘要
Abstract
Through geological investigation and survey, the results show that terrain along the Zhengzhou Rail Transit Line 2 is relatively simple. Engineering geological and hydrogeologic condition is relatively poor. Human engineering activities of destructive geological environment are relatively intense. Peck formula was used to calculate the values of ground collapse (settlement) in the shield construction. Swedish slice method was used to calculate the safety factor of slope stability of station deep foundation pit. Layer-divide summation method was used to calculate land subsidence values of dewatered station deep foundation pit. Risk of geological hazards of each sectional engineerings were made predictive evaluation by separating hazards types. Form analysis was used to make comprehensive evaluation of the risk of geological hazards in the evaluation area. The evaluation area is divided into medium parts and small parts of the risk of geological hazards. The major geological hazards such as slope destabili-zation, ground collapse and ground subsidence may occur during the rail transit engineering construction. Therefore , quality and safety management in the process of the construction should be paid much attention, and the unreasonable engineering activities that cause geological hazards should be prevented and avoided.关键词
地质灾害/预测评估/综合评估/轨道交通/郑州市Key words
geological hazard/ predictive evaluation/ comprehensive evaluation/ rail transit/ Zhengzhou分类
天文与地球科学引用本文复制引用
贺为民..郑州市轨道交通2号线地质灾害危险性评估[J].灾害学,2013,28(2):34-39,6.基金项目
中国地震局地震科技星火计划项目(XH12068) （XH12068）
