摘要
湖南省郴宁高速公路水龙互通A匝道1号桥2#墩1#桩基处于京珠高速公路边缘,该桩基溶洞发育、溶洞埋深大、并且成串状分布、最大高度15.94 m,处理难度大,施工安全风险高,阐述了该桩处理方案,通过分级帷幕注浆和分级下钢护筒的方法,成功对其进行处理,成桩后,现场声测结果显示该桩为Ⅰ类桩。
Hunan Province,Chen Ning Expressway water dragon interoperability Ramp A Bridge 2# pier 1# pile in the Beijing-ZhuhaiExpressway edge of the pile cave development and cave depth large,and clusters like distribution,the maximum height of 15.94 m,processing difficult,high risk of construction safety,the paper describes the pile program,successfully be processed through the steel casing under the classification of curtain grouting and grading methods,into a pile after the live acoustic results show that the pile isclass Ⅰ pile.
出处
《公路工程》
北大核心
2012年第2期50-52,78,共4页
Highway Engineering
