冰碛层水文地质特征及其对工程影响的研究  

Hydrogeological characteristics of glacial till and its influence on engineering

作　　者：谢春庆[1] 邱延峻[2] 

机构地区：[1]成都军区空军勘察设计院,成都610041 [2]西南交通大学土木工程学院,成都610031

出　　处：《水文地质工程地质》2006年第5期90-94,共5页Hydrogeology & Engineering Geology

摘　　要：文章以西部某重大工程为例,在详实的调查和试验基础上,研究了冰碛层的水文地质特征及其对工程的影响。研究结果表明:场区冰碛层渗透系数小,透水性微弱,且在垂向上随深度增加,呈逐渐变小趋势;工程条件下,地表水、地下水不会再在场区内冰碛层中形成新的架空块碎石结构,也不会发生渗透破坏,对工程影响微弱。This paper focuses on engineering records of a project in a mountainous area in southwestern China. Hydrogeological behavior of a glacial till and its influence on engineering were studied based on filed investigation and laboratory-site testing. Research results show that groundwater is not appropriate for water supply during construction and operation phase. Field runoff and underground water worked together in freezing-thawing cycles which produced cavities in granular moraine layers and has reached a phase of balance.

关 键 词：冰碛层 水文地质特征 影响分析 

分 类 号：P512.41[天文地球—地质学]