【摘要】 结合岩溶地区两个工程实例的静载荷试验和应力测试结果,对桩的荷载传递特性进行了对比分析,桩端岩溶对桩承载特性的影响,不仅表现为对桩端阻力的影响,对桩侧摩阻力也会产生影响。应用有限元方法分析了桩端岩土对桩承载力的影响。计算结果表明,桩端岩土的变形模量对承载力影响很大;随着变形模量增大,承载力将大幅提高。更多还原

【Abstract】 <Abstrcat> Based on the results from static load test and stress test of two cases in karst area, the bearing behavior of pile is analyzed and contrasted in this paper. It proves that caves in the base of pile not only affect the base resistance, but also affect the friction of pile. The finite element method was applied to analyze the influence of rocks in the base of pile on bearing capacity of pile, according to the calculated results, the modulus of rocks affect the bearing capacity greatly, bearing capacity increases with the modulus of rocks increasing.更多还原