壁后化学灌浆施工技术在东北某电站地下式厂房渗水处理的应用  

Application of Chemical Grouting Technology behind Wall in Water Seepage Treatment of Underground Plant of a Power Station in Northeast China

作　　者：魏樱[1] 梁若霖 张岩 陆越宽 邵益民 杨宇[2] Wei Ying;Liang Ruolin;Zhang Yan;Lu Yuekuan;Shao Yimin;Yang Yu(Taipingwan Power Plant,Dandong,Liaoning118216,China;Hangzhou Guodian Dam Safety Engineering Co.,Ltd.,Hangzhou,Zhejiang310000,China)

机构地区：[1]太平湾发电厂,辽宁丹东118216 [2]杭州国电大坝安全工程有限公司,浙江杭州310000

出　　处：《中国建筑防水》2021年第11期50-53,共4页China Building Waterproofing

摘　　要：根据电厂水工建筑物渗漏部位的实际情况,结合原始设计及施工资料,对渗漏成因进行了分析。在传统立足封闭混凝土结构渗漏通道的基础上,为确保渗漏处理的长效性,通过壁后化学灌浆在混凝土墙壁后与回填素混凝土之间形成壁后自防渗体系,对混凝土及钢管与混凝土接触面进行引排处理,并在内侧墙体设置聚合物水泥防水砂浆保护层,以形成整体防护。The leakage causes are analyzed according to actual situation of the leakage part of the hydraulic structures of power plant and the original design and construction data.In order to ensure the long-term effectiveness of leakage treatment,based on traditional method of sealing the leakage channel of concrete structure,a self-seepage-proofing system behind the wall is formed through chemical grouting between the back of concrete wall and backfilled plain concrete,water drainage is designed for concrete and the contact surface between concrete and steel pipe,and a polymer cement waterproofing mortar protective layer is set on the inner wall to form an overall protection system.

关 键 词：水工建筑物 壁后化学灌浆 水溶性聚氨酯化学灌浆材料 聚合物水泥防水砂浆 

分 类 号：TV543.2[水利工程—水利水电工程] TV441