京沪高速铁路软土地基松木桩处理技术

Treatment Technique of Pine Pile in Soft Soil Foundation of Beijing-Shanghai High-speed Railway

松木桩适宜在地下水位下的环境工作,适用于河道内、河岸边、鱼塘附近及地基含水量高、软土地基厚度不大的工程。文中结合京沪高速铁路清沧特大桥跨越子牙新河支架现浇梁软弱地基,采用松木桩处理的实例介绍表明,松木桩是一种取材容易、施工简便、造价低廉的软土加固技术,只要使用得当,效果良好。

Pine pile is suitable in the environment below underground water level,applicable for the engineering in riverway,along bank,near pound and those with high water content and thin soft foundation.This paper introduces the example of pine pile treatment combined with Qingcang Bridge of Beijing-Shanghai High-speed Railway crossing Ziya River frame cast-in-situ soft foundation.It is indicated that pine pile is a soft soil reinforcement technique with easy material consumption,simple construction and cheap cost,which achieves good effect if properly applied.