钢板桩+土工膜防渗技术在围堰防渗工程中的应用

Application of Steel Sheet Pile and Geomembrane Seepage Control Technology in Cofferdam Seepage Control Engineering

防渗体系是围堰工程的生命线,如果防渗处理达不到要求,可能导致整个围堰工程的失稳,从而可能引发严重的安全事故。为达到围堰防渗要求,发挥工程钢板桩和土工膜的优点,将钢板桩顶锁口梁与土工膜防渗体相联接,在水平和垂直方向形成完整封闭体系。该技术在广西百色某水库进水口围堰工程得到了很好运用。因此,集合复合土工膜与钢板桩防渗墙是一种高效且可行的防渗措施,为相关工程建设提供参考。

The anti-seepage system is the lifeline of cofferdam engineering.If the anti-seepage treatment is not achieved,it may lead to the instability of the entire cofferdam engineering,which may cause serious safety accidents.In order to meet the anti-seepage requirements of the cofferdam,the advantages of engineering steel sheet piles and geomembranes are utilized.The top locking beam of the steel sheet pile is connected to the geomembrane anti-seepage body,forming a complete closed system in both horizontal and vertical directions.This technology has been well applied in a intake cofferdam project in Baise Reservoir irrigation area.Therefore,the combination of composite geomembrane and steel sheet pile anti-seepage wall is an efficient and feasible anti-seepage measure.It provides reference for related engineering construction.