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矢量和分析方法是基于力是矢量这一基本概念的分析方法,其关键在于确定边坡真实应力分布状态及整体下滑趋势方向。在边坡一定的受力条件下,利用有限元方法得到边坡应力分布状态后,不同定义的下滑趋势方向就可以得到不同的边坡滑面位置及其对应的矢量和法安全系数,通过分析,提出了3种确定整体下滑趋势方向的方法并分别对固定滑面、非固定滑面及均质边坡圆弧滑面的搜索等进行了探讨,计算结果表明:由潜在滑面各点极限抗滑能力确定的边坡整体下滑趋势方向在临界滑面位置的搜索方面是合理的。最后给出了边坡矢量和分析方法平面问题与三维问题安全系数的统一表达式,公式简洁,容易编制程序并容易被工程技术人员掌握和应用。因此该方法在工程实践中有望得到广泛的应用。
Vector and method of analysis is based on the basic concept of force vector analysis method, the key is to determine the slope of the true stress distribution and the direction of the overall downward trend. After the stress distribution of the slope is obtained by using the finite element method under certain stress conditions of the slope, different slope slip surface positions and corresponding safety factors of the vector sum method can be obtained by different defined trends of the downward trend. By analyzing , Three methods to determine the overall direction of the downward trend are put forward and the search of the fixed slip surface, the non-fixed slip surface and the homogeneous slope arc slip surface are discussed respectively. The calculation results show that: Skidding ability to determine the direction of the slope of the overall decline trend in the critical slip surface position search is reasonable. Finally, a unified expression of the slope vector and analysis method plane problem and the three-dimensional problem safety factor is given. The formula is simple, easy to program and easy to master and apply by engineering technicians. Therefore, this method is expected to be widely used in engineering practice.