景观湖区钠基膨润土防水毯防渗应用实例分析  

Analysis of sodium base bentonite waterpro of blanket in ecological seepage prevention of landscape lake

作　　者：张静[1] 刘文龙[1] ZHANG Jing;LIU Wen-long(Zunyi Survey and Design Institute of Water Resources and Hydropower,Zunyi 563002,China)

机构地区：[1]遵义水利水电勘测设计研究院

出　　处：《水科学与工程技术》2019年第6期62-65,共4页Water Sciences and Engineering Technology

摘　　要：娄山关湖区地形封闭性差,地基土覆盖层厚、岩土渗透性强,需通过防渗处理后方具备蓄水条件。以湖区蓄水水位需求和地质勘探揭露的水文地质条件为评价依据,设计拟定防渗帷幕、土工膜防渗和膨润土防水毯3种防渗形式进行对比分析,并优选与工程匹配性好、投资经济效益高的钠基膨润土防水毯防渗方案。实践应用表明:膨润土防水毯在景观湖防渗工程中的合理应用,能很好解决生态防渗、适度防渗等问题,具有良好的防渗效果和显著生态经济效益。The problems of poor sealing terrain,thick cover layer and rock and soil strong permeability in the foundation has been introduced.Using the demanding water storage level and hydrogenological conditions revealed by geological exploration as the evaluation basis,the seepage scheme such as the anti-seepage curtain,geomembrane anti-seepage and bentonite waterproof blanket has been comparatively analyzed and the bentonite waterproof blanket scheme which has good match with engineering and high investment economic efficiency has been adopted.The practical application shows that the bentonite waterproof blanket in the landscape lake anti-seepage project can solve the problems of ecological anti-seepage and moderate anti-seepage,has good anti-seepage effect and significant ecological and economic benefits.

关 键 词：景观湖 防渗 钠基膨润土防水毯 

分 类 号：TV697[水利工程—水利水电工程]