长江漫滩软土地区隧道沉降治理研究

Settlement Control of Soft Soil Tunnel in Yangtze River Beach

长江漫滩软土地区工程地质具有承载力低、渗透性高、含水率大等特点,往往会导致该区域城市地铁隧道出现较大的不均匀沉降,并带来一系列的不良影响。针对软土地区地铁隧道沉降问题,在隧道结构病害基础上,开展了运营期不同的结构沉降治理方案的尝试,并对比分析了沉降治理的效果,以期为同类软土地质城市地铁运营隧道沉降治理提供参考和借鉴。

The engineering geology of soft soil of Yangtze River floodplain in Nanjing river West area is characterized by low bearing capacity,high permeability and high water content,which will bring about a series of impacts.Based on the analysis of the tunnel structure diseases under the engineering Geological conditions,this paper discusses the different management schemes during the operation period,analyzes the results of the management,and puts forward proposals for the management of tunnel subsidence in similar Geological cities.