渗流自由面的数值分析  

NUMERICAL ANALYSIS OF SEEPAGE FREE SURFACE

作　　者：徐彩风[1] 李传宝[1] 

机构地区：[1]中铁第四勘察设计院集团有限公司,湖北武汉430063

出　　处：《安徽地质》2010年第2期135-137,142,共4页Geology of Anhui

摘　　要：在岩土边坡、土坝、地下洞室及地下水运动等渗流分析中,均存在有渗流自由面问题。渗流自由面的确定,对于正确认识地下水在边坡稳定以及变形中地应用,了解地下水在边坡中的赋存特性及其运动过程等具有重大意义。本文用FLAC数值软件对影响渗流自由面的形态的相关参数,包括渗透系数、孔隙率、水头压力的大小、渗流路径长短、岩土体的各向异性程度等分别建模进行计算分析,得到相关结论。Seepage free surface issue exists in analysis of the seepage concerning geotechnical slope,earth dam,underground cave and groundwater movement.The determination of seepage free surface is very important to correct understanding of the role of groundwater in slope stability and deformation,the characteristics of groundwater held in slope and its movement process.Using FLAC numerical software this paper respectively modelled,calculated and analyzed relevant parameters such as seepage coefficient,porosity,water head pressure,seepage path length,and anisotropy of rock-soil mass that affect the form of seepage free surface,and then made conclusions.

关 键 词：渗流 渗流自由面 FLAC 

分 类 号：TV139.11[水利工程—水力学及河流动力学]