深圳市地面坍塌灾害成因分析

Analyzing the Reason of Ground Collapse Disaster in Shenzhen

近年来,深圳市频繁发生地面坍塌事故。在讨论深圳市地面坍塌事故的孕灾环境和致灾因子的基础上,通过对深圳官方实地调查的事故数据进行统计分析,得出当前深圳市地面坍塌灾害发生的主要原因是城市化进程中的人类活动,具体表现为地下管线及附属设施老化破损、工程施工不当、暴雨冲刷、道路荷载过大以及暗渠化河道垮塌等5种基本形式,可为后期地面坍塌防治工作的开展提供决策依据。

In recent years,ground collapse occurred frequently in Shenzhen,posed a serious threat to the life and property of citizens. So,we combine with the basic principles of the ground collapse,in the basic of discussion of disaster and hazard environment,then through surveying and analyzing the accident data which from the official institutions in Shenzhen,the main reason for the ground collapse disaster in Shenzhen is the urbanization process human activity,manifested in four basic forms containing aged underground pipelines,improper construction,rain erosion,too serious burden of road and river culverts collapse,and so on. We may provide basis for decision making for carrying out the work of preventingand controlling of the ground collapse disaster in the late stage.