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基于剩余推力法和優化原理的邊坡三維穩定分析

Three-dimensional slope stability analysis based on three-dimensional residual thrust method and principle of optimality

  • 摘要: 為了探究一種盡可能符合實際破壞模式的邊坡三維穩定分析方法,提出了一種新的分析變形的方法.利用剩余推力法和優化原理建立邊坡臨界滑動場,實現危險滑動面搜尋和邊坡穩定性評價;通過反分析方法,實現在給定安全系數條件下邊坡坡角優化設計.編制了相應的計算分析軟件,結合實際礦山工程進行具體計算,其結果符合工程實際,并對工程提出了優化設計方案.

     

    Abstract: A new method of deformational analysis was adopted to carry out the three-dimensional stability analysis of a slope so as to accord with the actual destruction pattern as possible. In the method, the residual thrust method and the principle of optimality were used to construct the critical slip field (CSF) of the slope, which not only is convenient to find out the arbitrary shape of critical slip surface, but also can be used in optimum design at a given safety factor by using the counter-analysis method. Corresponding software was compiled to calculate a mining engineering project, the calculation results agreed with the measured data, and some optimum design schemes were proposed for the engineering project.

     

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