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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 large-scale project in western plateau as an example, based on the systematic study of the hydrogeological features of the moraine layer, this paper studied the structural characteristics, water-permeable and permeability characteristics and liquefaction characteristics of morace layers by theoretical calculation, model analysis and numerical simulation. Etc., the engineering effects of soaking softening and infiltration and destroying of groundwater in glacial moraine layer are analyzed. The foundation treatment methods such as reducing or eliminating the head of water pressure, replacing by dynamic compaction, gravel pile and filter layer are put forward, Groundwater on the adverse effects of the project, the obvious benefits.