【摘要】 指出了以往用填料的内摩擦角这个参数描述无底筒内填料压力分布是不合适的 ,填料的内摩擦角是材料特性 ,它不直接反映筒有无底所产生力学特性的区别。通过力学分析 ,将地基土作为无底筒内、外土压力的传力介质 ,建立了以筒内、外土体高差产生的压力通过地基土进行传递的计算模型 ,结合不同地基土 ,不同沉入深度的圆筒试验数据分析 ,提出了沉入式大圆筒筒内填料压力新的经验计算式更多还原

【Abstract】 The inappropriateness of using the inner friction angly of filler as a parameter for describing the filler pressure distribution of open ended cylinder is pointed out in this paper.The inner friction angle of filler is a material property, it does not directly reflect the difference in mechanical behaviors of cylinder with or without a bottom. Considering the foundation soil as a force transmitting media between the inner and outer pressure of the cylinder, a computational model is constructed. In this model, the pressure caused by different heights of soil inside and outside of the cylinder is transmitted through the foundation soil. Combined with experiment data based on different types of soil and different buried depths, an empirical computing method for the filler pressure of buried large diameter cylinder is proposed.更多还原