薄型混凝土防渗墙在昌梨水库主坝防渗工程中的应用

Application of Thin Concrete Impervious Wall in the Main Dam Engineering in Changli Reservoir

混凝土防渗墙工程是水工建筑物松散透水地基或土石坝体防渗结构的一种形式,属重要隐蔽工程,其质量的优劣直接关系到建筑物的安危。由于昌梨水库混凝土防渗墙工程任务重、工期要求紧、质量要求高,相对施工难度较大,在抢抓工期的同时对工程施工过程中控制混凝土浇筑质量非常关键。主要介绍了薄型混凝土防渗墙施工过程中,施工机具的选择,施工工艺的确定及详细地施工过程。通过严格的施工质量控制,成功地完成了防渗墙的施工。

Concrete Impervious Wall is a kind of structure used in loose and permeable foundation or soilstone dam to prevent permeation in hydraulic engineering. It is an important concealed structure, whose quality directly affects the safety of the structure. Construction of the impervious wall in Changli Reservoir was featured by short construction period, and high quality demand, which imposed extra difficulties to the construction. In this paper, the authors mainly introduced the selection of construction equipments, determination of construction processes and construction procedure. This project demonstrated rapid construction of impervious walls with strict control of construction quality.