冰碛层地下水的工程效应及处理方法研究  

Study on engineering effects and treatment means of underground water in glacial till

作　　者：谢春庆[1] 廖崇高[1] 王伟[1] 

机构地区：[1]成都军区空军勘察设计院,成都610041

出　　处：《工程勘察》2013年第4期25-29,共5页Geotechnical Investigation & Surveying

摘　　要：本文以西部高原某大型工程为例,在系统研究冰碛层水文地质特征的基础上,采用理论计算、模型分析及数值模拟等方法,从冰碛层结构特征、赋水性及渗透特性及液化特性等方面分析了冰碛层地下水浸泡软化与渗透破坏等工程效应,提出了降低或消除承压水头、强夯置换、碎石桩及反滤层等地基处理方法,有效地消除了冰碛层中地下水对工程的不良影响,效益明显。Taking a major project in mountainous southwest China area as example and based on a systematic research on the hydro-geological behavior of glacial till,by means of theoretical calculation,model analysis and numerical simulation,from the aspects of structural characteristics,aquosity,permeability characteristics and liquefaction behavior of the moraine layer,engineering effects of underground water in the glacial till on soaking weaken and seepage failure are analyzed.The ground treatment means such as reducing or eliminating confined water head,dynamic compaction replacement,gravel column and inverted filter are proposed to eliminate the adverse influence of underground water in the glacial till to the project and the benefits are obvious.

关 键 词：冰碛层 地下水 工程效应 渗透破坏 地基处理 

分 类 号：TU472[建筑科学—结构工程]