复杂岩溶地质钻孔桩施工技术探讨

摘要

Taking some double-line super-large bridge of the capacity expansion revamping of Xiang-Gui railway as the engineering background,the paper illustrates the difficulties for the bored pile in the complicated karst geology and the treatment principle for the karst pile foundation,and points out the treatment measures for the mud leakage,the collapses,and the deflection holes in the bored pile construction,so it achieves outstanding effect.%以湘桂铁路扩能改造工程某双线特大桥为工程背景,阐述了复杂岩溶地质钻孔桩施工技术难点及岩溶桩基整治原则,并针对钻孔桩施工中遇到的漏浆、塌陷、偏孔等情况提出了处理措施,取得了显著的效果。