西安地铁二号线南段地面沉降异常成因分析

On Cause Analysis of land subsidence Anomalies in the Southern Section of Xi'an Metro Line 2

西安地铁二号线南延段在施工监测时发现沉降异常,为了查明沉降异常原因,采用资料收集、地面调查、水文地质调查等多种方式获取相关数据,对西安地铁二号线南延段地面沉降进行了成因分析,得出了西安地铁二号线地面沉降南延段地面沉降的主要原因该段过量抽取地下水所致,其次临潼-长安断裂和公路荷载也对其有一定的影响。

In order to find out the causes of subsidence anomalies in the southern extension of Xi'an Metro Line 2 in construction monitoring, a variety of ways is used to obtain relevant data such as the data collection, ground surveys and hydrogeological investigation,and the causes of land subsidence in the south extension section of Xi'an Metro Line 2 are analyzed, it turns out that the one main reason is excessive pumping of groundwater, the other one is due to Lintong to Chang'an fracture zone and the highway loads.