东深供水改造工程渡槽伸缩缝新型止水结构设计与施工

介绍了东深供水改造工程渡槽伸缩缝止水结构的优选设计方案———复合压板式橡胶止水.分析了该止水结构的设计特点、安装程序及施工方法.指出止水带U形部分应根据接缝变形量设计,厚度和强度应能承受0 06MPa水压,采用GB止水板与底部混凝土黏结等.实践证明,本工程渡槽伸缩缝结构止水设计合理,施工方便,效果良好,可为我国类似调水工程伸缩缝止水结构的设计和施工提供借鉴.

Design and construction of a new sealing structure for aqueduct expansion joints in Dong-Shen water supply reconstruction project

An introduction was given to the optimal design scheme of the new sealing structure-the water sealing with composite rubber clip plate. The characteristics of the structure, the procedure of its installation, and the method of its construction were analyzed. It was pointed out that the design of U-shaped section for the sealing belt should be based on the deformation of expansion joints, that its thickness and strength should be rationally designed so that the structure could bear the water pressure of 006MPa, and that the GB seal plates should be agglutinated with concrete at bottom. Practices show that the present sealing structure is rational in design and convenient in construction and has good effect, providing some references for design and construction of expansion joint sealing structures in similar water diversion projects in China.