利用HiLLey公式确定PHC桩收锤标准的初探  

Preliminary Study on the Standard of Termination Hammering with PHC Pipe Piles by HiLLey formula

作　　者：肖燕[1] 

机构地区：[1]湖南省交通规划勘察设计院,湖南长沙410008

出　　处：《公路工程》2010年第6期14-17,共4页Highway Engineering

基　　金：湖南省交通厅科技项目(200716)

摘　　要：预应力高强混凝土管桩在深厚软基处治过程中的优良性质使得其在交通行业运用越来越广泛,但关于其收锤标准的确定,却一直没有相关的规范、规程出台,设计施工均难以把握。从影响桩体收锤标准的因素分析着手,通过对建筑行业常用的HiLLey打桩公式进行改进,得到最后一定贯入度A值对应的沉桩锤击数n。当A值取为1时,该n值即为目前最常用的最后1 m的锤击数控制值。Due to its excellent engineering properties,the PHC pipe piles are used regularly in transportation？when dealing with deep soil foundation.It is hard to control because there is no uniform standard of termination hammering.Combined with the study of correlative factor,through the amelioration of HiLLey formula,this paper gives the suggested value of ＂n＂,the number of hammering in the last distance A.When A equal to 1,the ＂n＂ is the most familiar final control number in the last one meter.

关 键 词：地基处理 软土路基 预应力高强混凝土管桩 收锤标准 HiLLey公式 

分 类 号：U416.1[交通运输工程—道路与铁道工程]