特殊地质条件下桥梁桩基的施工工艺探讨

房卫祥

(上海市第一市政工程有限公司)   

   摘要：在萧甬公铁立交桥20#~23#墩桩基施工中，发生泥浆漏失和坍孔，采用注浆加固漏失层和冲击成孔的施工工艺，顺利完成桩基施工。

   关键词：特殊地质;桩基;工艺

Discussion on construction technology for bridge pile foundation at special geological conditions

FANG Wei-xiang

Abstract In Xiaoyong combined road with railway bridge, the hole collapse and the mud loss usually takes place during 20#~23# pile foundation construction. The pile foundation construction was completed successfully by grouting technology and drilling technology.

Keywords special geological conditions, pile foundation, technology