摘要
某工程处于深厚淤泥质土中,采用密集管桩施工。由于挤土效应,产生较大孔隙水压力,出现管桩承载力达不到设计要求,开挖后的基桩出现倾斜、裂缝、挠曲等现象。通过挤土区域测斜曲线,以及打桩顺序,结合相关土力学理论,找出问题原因,为今后工程施工积累经验。
A project is situated in deep mud, the dense pipe pile construction method must be used. Due to the effect of soil compaction, large pore water pressure appears, pile bearing capacity cannot meet the design requirements after excavation, pile tilt, crack and deflection phenomenon. Through the area of soil compaction,and the pile driving sequence, combined with the theory of soil mechanics, to find out the causes of the problems, and to accumulate experience for the construction of the project in the future.
出处
《江苏建筑》
2016年第2期90-94,共5页
Jiangsu Construction
关键词
挤土效应
裂纹
有效应力
测斜
soil compaction effect
crack
effective stress measurement
oblique test
