复合土工膜在土坝除险加固工程中的应用

Application of polyethylene geomembrane to earth dam strengthening engineering

复合土工膜不仅广泛应用于渠道、河堤的防渗;而且在土坝坝肩、坝体防渗,降低浸润线、提高大坝安全系数等方面同样具有工程量小、施工方便、投资小等优点。通过总结复合土工膜在宝鸡峡泔河二库除险加固工程应用中的设计计算、效果、效益。提出复合土工膜在土坝除险加固工程中应用的要点。

Polyethylene geomembrane not only extensively applied to anti-seepage engineering in the channel and riverbank, but also used into earth dam abutment and dam body for anti-seepage engineering, lowering phreatic line or raising the dam safety factor. With the advantages of small amount of engineering, construction convenience, less investments and so on. This study, based on existing engineering practice of the design computation,result,performance in the strengthening engineering application to the second darn of the Ganhe Reservoir in Baoiixia Irrigation Work. This paper put forward the important points of application of polyethylene geomembrane in the earth dam strengthening engineering.