钱塘江标准塘西湖区北塘段Seep/W渗流稳定性分析

Analysis of Seepage Stability on the North Seawall of the Westlake-part of the Standard Seawall of the Qiantang River with Seep/w Model

针对本文根据饱和-非饱和渗流理论,根据渗流控制方程和定解条件,建立了以测压管水头和饱和度为变量的饱和-非饱和渗流数学模型。利用SEEP/W软件对钱塘江标准塘西湖区北塘段进行渗流稳定分析,分析思路主要为粒径分布曲线,体积含水量函数,渗透性函数三个步骤。结果表明,钱塘江标准塘西湖区北塘段堤身不存在渗漏现象,能够满足渗流稳定性要求。

According to the saturated-unsaturated seepage theory,based oncontrol equation and definite condition, a saturated-unsaturated seepage mathematical model is established with piezometric head and saturation as variable quantities. Based on the seep/w model, the seepage stability of the north seawall of the Westlake is analyzed, which is part of the Qiantang River, the main analysis methods include particle size distribution curve, volumetric water content function and the permeability function. The result indicates that there is no seepage in this place and the seawall can meet the requirement of seepage stability.