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运用块体集上限法详细分析了砂土中条形锚板的抗拔承载特性。首先分析了砂土中水平条形锚板的抗拔承载力,并与已有文献中的极限分析上限解、极限平衡解和模型试验结果等进行了详细对比,验证了本文分析的有效性。对比结果表明本文块体集上限分析的求解精度要高于多块体上限法和极限分析有限元法,具有较大的优越性。运用块体集上限法分析了条形锚板的破坏面特性,对不同土体内摩擦角和不同锚板埋深比(H/B)条件下砂土中条形锚板的破坏模式及其变化规律进行了详细的分析研究。
The uplift-bearing characteristics of strip anchor plate in sandy soil are analyzed in detail by using the block upper bound method. Firstly, the anti-pull bearing capacity of horizontal strip anchor in sandy soil is analyzed and compared with the upper limit solution, limit equilibrium solution and model test results in the existing literature. The validity of the analysis is verified. The comparison results show that the accuracy of the upper bound analysis of the block set in this paper is higher than that of the multi-block upper bound method and the limit analysis finite element method, which has great superiority. By using the method of upper limit of mass, the damage characteristics of strip anchor plate are analyzed. The failure modes and changes of strip anchor plate in sandy soil under different soil friction angles and different anchor depth-to-depth ratio (H / B) The law conducted a detailed analysis.