倾斜填土表面挡土结构土压力计算方法探讨

该文提出把挡土墙后墙顶以上的倾斜填土看成是作用在墙顶上的外荷载 ,运用求解附加应力的布氏解答 ,结合朗肯土压力理论 ,来求解作用在墙背上的主动土压力。这种方法可以较准确地考虑挡土墙后填土的长度、宽度和厚度、填土表面的倾斜程度、墙背与填土之间的摩擦以及极限平衡状态的影响 ,得出的主动土压力小。

DISCUSSION ON THE EARTH PRESSURE CALCULATION METHOD OF RETAINING STRUCTURE ON THE SURFACE OF INCLINED FILL

The paper presents the idea that the inclined fill above the top of the retaining wall is considered as the external load acting on the top of the wall, the active earth pressure on the back of the wall is solved using the Boussinesq solution of additional stress, combined with the Rankine earth pressure theory This method can more accurately deal with the length, width and thickness of the fill at the back of the wall, the inclination of the surface of the fill and the back of the wall, and the influence of the state of limit equilibrium The value of the so-obtained active earth pressure is reasonably small