静压PHC管桩试桩分析

Analysis of Trial Piling on Static Pressure Pre-Stressed High Concrete Pipe-Pile

结合莆田地区某住宅小区基础施工实例,阐述了试桩过程中的各种影响因素,确定了试桩过程的各项内容;分析了持力层为中粗砂卵砾石-碎卵石情况下管桩沉桩试桩过程及终压力与桩端的承载力特征值的关系,为工程桩打桩提供依据;为同条件工程试桩确定一个比较具体的标准及作为条件相似工地的施工经验参考,具有一定的工程应用价值。

Based on a foundation construction work of an residential quarters in purism , this paper discusses the influential factors in trial piling, and determines the contents for it. Furthermore, by analyzing the relationship between final pressure and characteristic value of beating capacity of pile in the process of pipe sinking and trial piling when supporting stratum is ofmiddle coarse gravel/cobble bed - - broken pebble , the paper provides an basis for engineering piling , thus providing a comparatively concrete standard for trial piling of projects with same condition, which bearing some engineering application value.