城市桥梁桩基穿越溶洞预注浆施工技术  

Pre-grouting Technology Used in Pile of Urban Bridge Crossing Karst Cave

作　　者：张琨[1] 刘建民[1] 邬欢[1] 吴木平 

机构地区：[1]中国建筑第三工程局有限公司,湖北武汉430064

出　　处：《施工技术》2011年第1期77-79,共3页Construction Technology

摘　　要：以白沙洲大道改造项目为例,介绍了防范桩基穿越溶洞时漏浆、塌孔乃至地面塌陷的预注浆处理技术。详细介绍了预注浆的施工方法、异常情况处理、注浆终止标准和效果检查。该技术的采用保证了桩基顺利成孔。Based on Baishazhou Avenue reconstruction project,pre-grouting technology to avoid mud leakage,hole collapse and ground collapse when piles cross karst cave is introduced.Construction technology of pre-grouting,abnormal condition and treatment,termination standard and result inspection of grouting are introduced in detail.It makes bores formation of pile foundation smooth.

关 键 词：城市桥梁 桩基成孔 多层溶洞 预注浆 

分 类 号：TU753.3[建筑科学—建筑技术科学]