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浅圆仓散料侧压力一般采用Rankine和Coulomb土压力理论计算,而Rankine理论和Coulomb理论适合于直线挡墙。散体不同于流体,其对侧墙有摩擦力作用,侧压力沿高度的分布不可能是线性的。基于此,依据能量原理,考虑仓壁摩擦,按虚位移法,得到浅圆仓侧压力的计算公式。通过算例,将计算结果与实仓试验结果、Rankine和Coulomb公式计算结果、有限元计算结果进行对比,表明本文计算方法是合理的。
Bulk silo pressure is generally calculated using Rankine and Coulomb earth pressure theory, while Rankine theory and Coulomb theory are suitable for linear retaining wall. Dispersion is different from the fluid, which has a friction effect on the side wall, lateral pressure along the height of the distribution can not be linear. Based on this, based on the energy principle, considering the wall-wall friction and the virtual displacement method, the formula of the pressure on the shallow silo side is obtained. By comparing the calculated results with the real test results, the Rankine and Coulomb formula results and the finite element calculation results, the calculation method in this paper is reasonable.