摘要
沉管灌注桩施工所产生的巨大侧向挤压力常造成地面隆起,影响邻近建筑物的正常使用,甚至导致各类建筑物的毁坏。针对宁波地区的工程地质条件,根据园柱孔扩张理论,建立起单桩周围土体中侧向应力的计算模型,进而提出和验证用叠加法求解群桩周围土体中的应力变化规律,以达到定量预测这种影响作用的目的。1.单桩周围土体中侧向应力的变化规律:根据宁波地区的地层特点。
The large lateral earth pressure,created by construction of Cast lnsitu pile with Drivn Casing,often results in land upheaval,hindering the normal use of the nearby structures,and going so far as to damages it.The model for calculating the pressure around the single pile is presented on the basis of the Cylindric Hole Theory in this paper,and the method of superposition,which solves the stress distribution around the pile cluster,is further proposed and proved to forecast this effect on nearby structures.
出处
《广西地质》
1996年第1期251-260,共10页
Guangxi Geology
关键词
土体
附加应力
沉管灌注桩
工程施工
foundation engineering
foundation construction
cast insitu pile
building/single pile
pile cluster.
