超深超厚透水砂层中的深基坑施工技术

The Deep Foundation Pit Construction Technique of the Thick Permeable Sand

针对广州西江引水工程某输水管线干线(佛山小塘立交段)盾构1标工程到达井超深超厚透水砂层的复杂地质条件,采用合适的泥浆护壁、连续墙接头处理、玻璃纤维筋应用等技术,解决了地下水丰富、超深超厚透水砂层中42m深地下连续墙以及深基坑施工的难题,取得成功。

In Guangzhou Xijiang Water Diversion Project for 5 section,according to the th（i｜¨）ck permeable sand layer,using the technology of slurry-wall technology,diaphragm wall joint,glass reinforcement,etc.,We solved the construction problems of 42m deep diaphragm wall and deep foundation pit of the thick permeable sand.