轨道交通车站特大桥深基坑钢板桩围堰施工技术

Construction Technology of Steel Sheet Pile Cofferdam for Deep Foundation Pit of Large Bridge of Rail Transit Station

结合工程实例,对钢板桩插打施工、围堰内开挖及其支撑施工要点进行探讨,并提出钢板桩施工中常见问题的应对措施,如遇到孤石、礁石时需优化施打方式、调节围堰尺寸,最后提出钢板桩围堰拆除要点。

Combined with engineering examples,this study discusses the construction of steel sheet pile,excavation in cofferdam and key points of supporting construction,and puts forward countermeasures for common problems in steel sheet pile construction,such as optimizing the construction method and adjusting the size of the cofferdam when encountering isolated stone and reef,and finally puts forward the key points of removing steel sheet pile cofferdam.