基于载荷试验的超长桩应力传递机理分析OACHSSCD
Load Test-Based Mechanism Analysis of Superlong Pile Stress Transfer
基于上海某工程超长桩载荷试验成果，采用Boltzmann数学模型拟合了桩侧土和桩端土的荷载传递函数，进而采用有限杆单元法和荷载传函数分析了单桩荷载传递机理。结果显示，基于试桩成果拟合得到的Boltzmann荷载传递函数，可以较好的用于模拟单桩Q-S曲线及侧摩阻力发挥过程，由于桩侧摩阻力与桩土相对位移接近理想弹塑性的函数关系、桩身材料的非线性等因素，会导致模拟的单桩Q-S曲线与实测结果存在差异。
This paper uses the Boltzmann model to fit a load transferring function between pile soil and pile endpoint soil during a number of superlong pile load tests undertaken in Shanghai. The results of these tests were analyzed to determine the mechanisms whereby loads are transferred within superlong piles using a finite beam element method and a load transfer function. The results show that fitting of Boltzmann load transfer function to experimental results i…查看全部>>
陈晖
上海岩土工程勘察设计研究院有限公司,上海200032
天文与地球科学
超长桩荷载传递法单桩载荷试验
superlong pileload transfer methodsingle pile load test
《上海国土资源》 2012 (3)
50-53,4
上海市建交委重大科研项目(重科2010-007)上海市科委科研项目(09dz1207700)
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