某水库工程全库盆土工膜防渗结构设计研究  

Design study of geomembrane impermeable structure for whole reservoir basin of a reservoir project

作　　者：邓伯均 黄涛涛 张镯 DENG Bo-jun;HUANG Tao-tao;ZHANG Zhuo

机构地区：[1]中国电建集团贵阳勘测设计研究院有限公司,贵州贵阳550081

出　　处：《东北水利水电》2025年第3期5-9,71,共6页Water Resources & Hydropower of Northeast China

摘　　要：在岩溶地区,复杂地质条件下的全库盆土工膜防渗问题一直都是水库工程施工中的重难点。本文基于某水库工程,在分析库盆复杂地质的基础上,结合工程建设条件,设计研究出一种以低强度半透水胶凝砂砾石垫层为主要组成的全库盆HDPE土工膜防渗结构,同时在分析土工膜耐久使用年限基础上不考虑全膜保护,对库岸防渗结构进行设计。本文中提出的新型防渗结构设计不仅有效利用了当地建材,还能够满足不同地质条件下的防渗需要,为后续同类工程的防渗设计提供了一定的借鉴和参考。In karst areas,the seepage prevention of the whole reservoir basin with geomemofilm under complex geological conditions is always a difficult problem in reservoir engineering.Based on a reservoir project,on the basis of analyzing the complex geology of the reservoir basin,combined with the construction conditions of the project,a HDPE geomembrane impermeable structure of the whole reservoir basin is designed and studied,which is mainly composed of low strength semi-permeable cementified sand and gravel cushion.Meanwhile,on the basis of analyzing the durable service life of the geomembrane,the impermeable structure of the reservoir bank is designed without considering the protection of the whole membrane.The new anti-seepage structure design proposed in this paper not only effectively uses the local building materials,but also can meet the anti-seepage needs under different geological conditions,and provides a certain reference for the subsequent similar projects.

关 键 词：复杂地质 全库盆 土工膜 防渗结构设计 

分 类 号：TV44[水利工程—水工结构工程]