钠基膨润土防水毯防渗效果有限元分析研究  

The finite element analysis on seepage controlling effect of GCL

作　　者：朱永涛 赵伟鑫 张志华 霍志久 蔡建功 

机构地区：[1]河北省水利科学研究院,河北石家庄050051

出　　处：《新型建筑材料》2016年第2期68-70,73,共4页New Building Materials

摘　　要：根据石家庄市滹沱河防洪综合整治工程的实际情况和钠基膨润土防水毯的渗透系数,在河道中选取典型的断面,对铺设的钠基膨润土防水毯进行有限元渗流模拟,主要计算典型断面处的水力特性参数。模拟结果表明:钠基膨润土防水毯作为一种新型环保防渗材料,其防渗效果显著。随着水头的逐渐增加,单宽渗流量和各断面的最大水力梯度值均逐渐增大。模拟结果可为钠基膨润土防水毯在水利工程中防渗应用提供理论和技术支撑。According to the actual situation in the comprehensive improvement of the Hutuo river flood control project and the permeability coefficient of sodium base bentonite waterproof blanket,selecting typical section in the channel,the laying of sodium base bentonite waterproof blanket seepage fern simulation,the main computing typical sections of hydraulic charaeteristic parameters,the simulation results show that the sodium base bentonite waterproof blanket as a new environmental protection seep- age control material,its seepage prevention effect is extremely significant. With the increase of water head,seepage flow per unit width and the cross section of the maximum hydraulic gradient are gradually increased. At the same time,the simulation results provide a theoretical and technical support for application of sodium base bentonite waterproof blanket in water conservancy engi- neering.

关 键 词：钠基膨润土防水毯 有限元 浸润线 单宽流量 水力坡度 

分 类 号：TU573[建筑科学—建筑技术科学]