混凝土灌注桩竖向承载试验研究

Test on verticle bearing capacity of concrete bored pile

结合工程对最大加载16 000 kN情况下桩身变形及桩侧阻力进行试验分析。根据地层条件初步确定桩长,根据承载力确定混凝土强度等级,根据强度要求及施工方法选用适当的混凝土配合比,通过试验确定单桩承载力、桩轴力的传递规律、桩侧阻力发挥机理及桩顶沉降量与桩身变形的关系。

The concrete bore pile deformation and side friction of pile on dead-load test under 16000kN is analyzed.The pile length, concrete strength grade and proportioning are determined by stratum condition, bearing capacity, strength and construction method.The bearing capacity of single pile, the transitive rule of the endogenetic, the sedimentation on the top of the pile and the deformation of the pile ate determined through test.