铁岗-石岩水库水质保障工程九围河口生态堤水下填筑施工技术分析  

Analysis on Underwater Filling Construction Technology of Ecological Embankment at Jiuwei Estuary in Tiegang-Shiyan Reservoir Water Quality Guarantee Project

作　　者：王进卫 WANG Jinwei(Sinohydro Engineering bureau 4 Co.,Ltd.,Xining 810099,Qinghai,China)

机构地区：[1]中国水利水电第四工程局有限公司,青海西宁810099

出　　处：《工程技术研究》2023年第1期58-61,共4页Engineering and Technological Research

摘　　要：文章以铁岗-石岩水库水质保障工程(二期)九围河口生态堤子项目为例,介绍生态堤水下填筑施工方法及其施工工艺流程。该生态堤水下施工主要采用全断面填筑,无须填筑挡水围堰、施打钢板桩,省去了基坑抽排水、基坑清理等环节,减少施工造成水源地的二次污染。此外,全段面施工戗堤宽度足够,施工更加简便安全,可降低土石车辆滑入水库的风险,避免由于坝面作业狭窄问题而造成施工干扰,从而保证现场施工效率和进度,可节约施工工期,显著缓解施工工期紧的压力。因此,该施工方法值得同类项目参考应用。Taking the sub-project of Jiuwei river mouth ecological embankment of Tiegang-Shiyan reservoir water quality guarantee project(Phase II) as an example, this paper introduces the underwater filling construction method and construction process of ecological embankment. The ecological embankment underwater construction mainly adopts full section filling, without filling water retaining cofferdam, and placing steel sheet piles, which saves the links of foundation pit pumping drainage and cleaning, and reduces the secondary pollution of water source location caused by construction.In addition, the width of the full section construction berm is enough, and the construction is more convenient and safe,which can reduce the risk of soil and rock vehicles sliding into the reservoir and avoid the construction interference caused by narrow dam surface for operation, so as to ensure the construction efficiency and progress of on-site construction, save the construction period, and significantly relieve the pressure of the tight construction period. Therefore, the construction method is worthy of reference for similar projects.

关 键 词：生态堤 水下填筑施工 水库 水质保障工程 防渗墙浇筑 

分 类 号：TV641[水利工程—水利水电工程]