杭州湾跨海大桥桩基承载力的自平衡试验  

Test Study on Pile of Hangzhou Bay Bridge

作　　者：朱瑶宏[1] 程晔[2] 龚维明[2] 

机构地区：[1]杭州湾大桥工程指挥部,浙江宁波310006 [2]东南大学土木工程学院,江苏南京210096

出　　处：《公路交通科技》2004年第1期58-61,66,共5页Journal of Highway and Transportation Research and Development

摘　　要：杭州湾大桥试桩工程中,采用自平衡试桩法对钻孔灌注桩承载力进行测试,在试桩A1中埋设双荷载箱,测试桩端注浆提高承载力的效果。实践表明该测试法在海洋条件下具有无可比拟的优势,桩端注浆具有显著效果,因此其在桥梁桩基中具有广泛的应用前景。The self-balance test method is adopted for Hangzhou Bay Bridge to test the capacity of the bored pile .Two load-boxes are buried in the pile to test the effect of improving the capacity of the pile by injecting cement into the bottom of the pile. The practice has proved that this test method has great advantage to test large capacity pile in the sea and it will find wide application prospect in bridge piles.

关 键 词：自平衡试桩法 双荷载箱 桩端注浆 

分 类 号：U443.154[建筑科学—桥梁与隧道工程]