探矿工程-岩土钻掘工程Issue(2)：68-71,4.
大直径深层钻孔灌注桩拔除工艺研究
Research on Pulling-out Technology for Long Bored Pile with Large Diameter
裴迅 1芮大虎 1吴庆红 2葛执礼2
作者信息
- 1. 河南理工大学土木工程学院，河南焦作454003
- 2. 中铁十六局集团轨道交通公司，北京111018
- 折叠
摘要
Abstract
According to the characteristics of long and large diameter pile to be pulled out in the open-excavated tunnel ( pile-puling interval) in Zhengzhou, the force on pile body and the pile-pulling technology are studied.Through the analy-sis and calculation on failure mode of soil around the pile and tensile strength of the pile body in pulling-out process, the ef-fective method of resistance reduction is selected to be applied in the engineering practice, and good results are achieved. The solutions of pile body partial enlarged, too large pile lateral friction and pile broken in pile pulling-out operation are summed up, which can serve as reference for the same projects.关键词
钻孔灌注桩/拔桩/FCEC全回转清障机/极限侧阻力/断桩Key words
bored pile/pile pulling/FCEC full rotary wrecker machine/ultimate lateral resistance/broken pile分类
建筑与水利引用本文复制引用
裴迅,芮大虎,吴庆红,葛执礼..大直径深层钻孔灌注桩拔除工艺研究[J].探矿工程-岩土钻掘工程,2015,(2):68-71,4.
