摘要
杭州湾跨海大桥主塔桩基础为大直径超长群桩基础,对全部38根桩进行了桩底后压浆,有效地提高了桩基承载力和整体刚度,减少了基础的不均匀沉降。重点介绍大规模群桩基础通过桩底压浆提高承载力的机理、压浆工艺及压浆效果。
Hangzhou Bay Bridge Main Pylon pile foundation for large diameter overlength pile group foundation, for all 38 piles of pile bottom post pressure grouting, and effectively improve the bearing capacity of pile foundation and the overall rigidity, reduces the nonuniform settlement of foundation.Focusing on mass group pile foundation by grouting pile to improve the bearing capacity of the mechanism, grouting technology and grouting effect.
出处
《工程建设与设计》
2013年第5期87-89,共3页
Construction & Design for Engineering
关键词
杭州湾跨海大桥
群桩基础
桩底压浆
承栽力
机理
压浆工艺
效果
Hangzhou Bay Sea-crossing Bridge
pile foundation
pile bottom grouting
bearing capacity
mechanism
grouting technology
effect
