高强度花岗岩条件下桩基设计施工分析

Analysis on Pile Foundation Design and Construction Under High Strength Granite

钻孔灌注桩适用于各种土层和基岩施工,具有成桩直径及桩长灵活可控、受荷载后传力直接明了、单桩承载力大、抗竖向作用力等优点,还可承受水平荷载。因此,在房建、市政及桥梁的基础设计中,钻孔灌注桩是首选成桩工艺。基于此,文章结合具体案例分析高强度花岗岩条件下桩基设计施工。

The bored piles are suitable for all kinds of soil layer and bedrock,and have the advantages of flexible and controllable pile diameter and pile length,straightforward load,big single pile bearing capacity and resisting the vertical force.It can also bear horizontal load.Therefore,in the basic design of the residential buildings,municipal engineering and bridges,bored cast-in-place pile is the preferred pile process.Based on this,this paper analyzes the design and construction of pile foundation under the condition of high strength granite with specific cases.