锁口钢管桩围堰在复杂地质条件下桥梁深基坑支护中的应用  

Application of Locking Steel Pipe Pile Cofferdam in Retaining and Protection for Deep Bridge Excavations Under Complex Geological Conditions

作　　者：郭文杰[1] 方召欣[2] 

机构地区：[1]中交公路规划设计院有限公司,北京100088 [2]烟台大学土木工程学院,山东烟台264005

出　　处：《交通标准化》2014年第7期76-78,共3页Communications Standardization

摘　　要：复杂水文地质情况、苛刻的施工控制(工作面、环保等)条件使得深基坑支护日益成为复杂系统工程。结合跨纳潮河大桥工程的深基坑支护,对桥梁深基坑支护中,采用锁口钢管桩围堰和型钢内支撑相结合的方法进行施工方案及效果的介绍。实践表明,在复杂地质条件下,该支护方案稳定、可靠,锁口止水性能优异,可恢复性好。Abstract： Deep excavations tend to be complex systems engineering under complex hydrological/geologi- cal conditions as well as rigor construction requirements such as working face, environment protection, etc. This paper illustrated the application of locking steel pipe pile cofferdam and section steel struts in re- taining and protection for Na-ehao River bridge deep excavations. It showed that this scheme is stable, re- liable, and has good water-locking function and recoverability as well.

关 键 词：锁口钢管桩围堰 复杂地质条件 深基坑支护 施工方案 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]