防渗膜截渗墙在露天煤矿防渗中的应用

摘要:

在xx防渗膜截渗墙项目的基础上,探究混凝土防渗墙与HDPE防渗膜的组合模式在地下截水工程中的应用,分析防渗膜与地下连续墙复合施工的施工工艺。施工过程中,以自制铺膜机利用配重配合HDPE防渗膜进行下放,随后进行浇筑。验收结果表明,防渗膜截渗墙的止水效果良好,充分满足该露天煤矿的截渗需求,大幅度降低矿区内排水费用。防渗膜截渗墙施工工艺拓展了防渗墙在工程施工中的应用范围,较好的解决了露天煤矿存在的严重渗漏问题。

Abstract:

On the basis of xx impermeable membrane cut-off wall project, we explore the application of the combined mode of concrete impermeable wall and HDPE impermeable membrane in underground water interception project and analyze the construction process of composite construction of impermeable membrane and underground diaphragm wall. During the construction process, the HDPE impermeable membrane was lowered by a homemade membrane laying machine using counterweight with HDPE impermeable membrane, followed by pouring. The acceptance results show that the water stopping effect of the impermeable membrane interceptor wall is ideally, fully satisfying the seepage interception needs of the open pit coal mine and significantly reducing drainage costs. The construction process of impermeable membrane cut-off wall expands the scope of application of impermeable wall in engineering construction, and better solves the serious seepage problem of open pit coal mine.