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。本文针对宁波地区特殊的工程地质条件,根据圆柱孔扩张理论,建立起单桩周围土体中侧向应力的计算模型,并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。
The large lateral earth pressure, created by construction of Cast In situ Pilc with Driven Casing, often results in the land upheaval, hindering the normal use of the nearby structure, and going so far as to damage 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 structure.
关键词
基础工程
灌注桩
建筑物
单桩
foundation engineering
foundation construction
cast insitu pile
building/single pile
pile cluster.
