【摘要】 通过理论分析指出了筒外壁曲面对土压力分布的影响 ,在土压力计算中引入形状系数的概念 ,并提出了圆筒的形状系数与筒径关系的经验计算式。指出了边筒的存在影响圆筒外壁土压力分布的机理为筒与筒连接部位凹入部分土体形成的土拱 ,土拱影响的范围与筒外径大小有关。提出了筒外壁轴向及环向土压力计算的新方法更多还原

【Abstract】 Based on theoreetical analyses,the influence of outer surface of the cylinder on the earth pressure distribution is disculssed.A shape factor is introduced in computing earth pressure and the empirical formula concerned with relationship between the shape factor and the cylinder diameter is also provided.It is further pointed out that the mechanism of lateral cylinder affects the outer earth pressure of the large cylinder through the soil arch formed at the concave between the two cylinders.The extent of the influence of this arch is related to the outer diameter of the cylinder.In addition,new methods are provided for calculating circular and axial earth pressures on the outer wall of the cylinder.更多还原