摘要
华中地区某河经地质勘察,修建的堤防工程主要有3种不同地基(基层细砂、粉质土壤、中密夹砂粉质黏土)情况。利用GeoStudio2012软件的SEEP/W模块对堤防工程进行渗流数值模拟,通过对比分析,筛选出不同地基条件下适合的堤身材料。模拟结果表明,堤防地基与堤身为基层细砂-粉质黏土、粉质土壤-黄土、中密夹砂粉质黏土-黄土3种组合时渗流路径分布最均匀且渗流稳定,堤防安全性最高;当堤防堤身与地基渗透系数相差较大时,易发生集中渗流。
Through the geological survey of a river in Central China,there are three different foundations (base sand,silty soil,medium-density sandy & silty clay) in the embankment engineering. This paper adopts the SEEP/W module of GeoStudio 2012 software to simulate the seepage of the embankment engineering,and selects the suitable dike material under different foundation conditions through comparative analysis.The simulation results show that when the embankment foundation and the dike are the base sand and silty clay,silty soil and loess,or medium- density sandy&silty clay and loess,the seepage is the most uniform in distribution and stable in velocity,and the safety of embankment is in the highest level.When the dike and the foundation permeability coefficient differ greatly,it is easy to cause concentrated seepage.
作者
李治军
董智
陈末
卢松
LI Zhijun;DONG Zhi;CHEN Mo;LU Song(Institute of Groundwater in Cold Region,Heilongjiang University,Harbin 150080,China;School of Water Resources and Electric Engineering,Heilongjiang University,Harbin 150080,China)
出处
《人民珠江》
2019年第10期43-49,98,共8页
Pearl River
基金
黑龙江省省属高等学校基本科研业务费基础研究项目(RCCX201701、KJCXZD201722)
