深厚软土地区预制群桩施工挤土位移分析
Analysis on Soil Squeezing Displacement During Prefabricated Pile Group Construction in Deep and Thick Soft Soil Area
周晓峰1
作者信息
- 1. 中铁二十二局集团轨道工程有限公司,北京 100040
- 折叠
摘要
深厚软土地区群桩贯入引起的挤土效应是施工中需要重点关注的问题.文章通过原位试验研究了深厚软土条件下预制群桩的挤土特性,通过不同位置的土体位移监测数据,分析了桩基贯入后的土体变形特性,阐述了单桩和群桩条件下桩基挤土变形规律,得到了桩基贯入引起的水平挤土范围,并对群桩贯入后的土体多方向水平挤土位移规律进行了量化分析.
Abstract
The soil squeezing effect caused by pile group penetration in deep and thick soft soil area is a problem that needs to be paid attention to in construction.The soil squeezing characteristics of prefabricated pile group under deep and thick soft soil conditions are studied by in-situ test.The soil deformation characteristics after pile foundation penetration are analyzed by soil displacement monitoring data at different positions.The soil squeezing deformation law of pile foundation under single pile and pile group conditions is expounded.The horizontal soil squeezing range caused by pile foundation penetration is obtained,and the multi-directional horizontal soil squeezing displacement law of soil after pile group penetration is quantitatively analyzed.
关键词
深厚软土地区/预制桩/挤土效应/土体位移Key words
deep and thick soft soil area/prefabricated pile/soil squeezing effect/soil displacement引用本文复制引用
出版年
2024
NETL
NSTL
万方数据