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一、概述挡料墙(亦称挡土墙),是一种防止料堆滑坍的构筑物(如图1)。对于挡料墙侧压力的计算,虽然足有两个世纪,库伦土压力理论,仍因其简单而被应用。不少涉及挡墙计算的书,依据库伦主动土压力理论,把滑移体视作三角楔体,给出了挡墙侧压力计算公式和相应算表,并认为,当ε≤ψ时,这些结果都是正确的。本文目的则是要进一步指出,在这种条件下,当ε=ψ,或更确切地说,当料坡倾斜角ε等于或接近于其安息角η时,所会发生的结果。
1. Overview The retaining wall (also known as the retaining wall) is a structure that prevents slippery skidding (Figure 1). For the calculation of the pressure on the side of the retaining wall, although there are enough for two centuries, the Coulomb earth pressure theory is still applied because of its simplicity. Many books involved in the calculation of retaining walls, according to Coulomb’s active earth pressure theory, regard the slip body as a triangular wedge body, and give the calculation formula of the side wall pressure and the corresponding calculation table, and believe that when ε ≤ ψ, these The result is correct. The purpose of this paper is to further point out that under this condition, when ε = ψ, or rather, when the slope angle ε of the slope is equal to or close to its repose angle η, what will happen.