密集建筑群中大起伏岩面嵌岩咬合桩施工要点

Construction key points of rock-socketed interlocking pile with large uneven rock surface among dense buildings

在密集建筑群中大起伏岩面地层中施工咬合桩时,咬合桩的垂直度难以控制,容易出现孔壁倾斜的质量问题。如果对孔壁倾斜质量问题处理不当,不仅耗费大量工时,而且易发生塌孔等其他质量问题。以密集建筑群中大起伏岩面地层中某3层地下室基坑项目为例,介绍了该基坑项目嵌岩咬合桩的工艺流程,总结出密集建筑群中大起伏岩面嵌岩咬合桩的施工要点,为类似工程提供了参考。

The verticality of rock-socketed interlocking pile with large uneven rock surface among dense buildings is difficult to control,which results into quality problem of hole wall inclination.Improper treatment of hole wall inclination will not only waste a lot of work time,but also produce other quality problem such as hole collapsing.Based on rock-socketed interlocking piles of a three-story basement foundation pit project with large uneven rock surface among dense buildings,process of rock-socketed interlocking piles has been introduced,and construction points are summarized.Results can provide reference for similar project.