摘要
以某桩基工程为例 ,阐述了预制桩挤土效应和群桩效应的机理和表现形式及其监测点布置原则 ,开展了以超静孔压、基桩轴力、桩侧土压力和桩顶偏移为主的原型监测 。
Based on the project of pile foundation the mechanism and disadvantages of extruding effect and group effect of precast piles are analyzed,and the principle for the layout of monitoring points is presented.The excess pore water pressure,axial force,lateral soil pressure and top displacement of piles were monitored in the field.The mobile inverted plumb system was introduced to monitor the top displacement of counter pile,and the gravel piles used as wells are adopted to pump the water in clay efficiently.
出处
《工程勘察》
CSCD
北大核心
2003年第4期32-34,41,共4页
Geotechnical Investigation & Surveying
基金
973项目国家重点基础研究发展规划项目资助(2 0 0 2CB4 12 70 7)
关键词
预制桩
挤土效应
群桩效应
监测
基桩
轴力
碎石桩
降水井
precast pile
extruding effect
group effect
monitoring
soft soil
preventive measure
