Block-flexure toppling is the commonest type of failure in anti-dip bedding rock slopes. In this work, a new model called the force-transfer model (FTM) for this kind of failure is proposed, which is based on cantilever beams and limit equilibrium theory. A genetic algorithm (GA) was further employed to predict the safety factor and failure surface of the rock slope. A centrifuge test was also conducted to check the feasibility of using the combined FTM–GA method to model block-flexure toppling failure. The centrifugal results showed that a complex failure surface was produced in a slope undergoing block-flexure toppling. The failure surface is stepped and has a step height approximately equal to the spacing of the cross joints. Comparing these results with the theoretical ones shows that it is eminently feasible to use the FTM–GA method to analyze the stability of slopes liable to undergo block-flexure toppling failure. Moreover, the safety factor (i.e., failure load in the centrifugal test) and failure surface of the slope can be accurately determined using the new method. The newly proposed method can, therefore, be used as a theoretical tool for evaluating and designing anti-dip bedding rock slopes.

中文翻译：

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使用力传递模型和遗传算法评估与块体弯曲倾倒故障有关的岩石边坡的稳定性

块状弯曲倾覆是抗倾角层理岩质边坡中最常见的破坏类型。在这项工作中，提出了一种基于悬臂梁和极限平衡理论的新模型，称为这种失效的力传递模型（FTM）。进一步采用遗传算法（GA）来预测岩石边坡的安全系数和破坏面。还进行了离心机测试以检查使用组合 FTM-GA 方法模拟块挠曲倾覆故障的可行性。离心结果表明，在发生块体弯曲倾覆的边坡中产生了复杂的破坏面。破坏面是阶梯状的，其阶梯高度大约等于十字接头的间距。将这些结果与理论结果进行比较表明，使用 FTM-GA 方法来分析易于发生块体弯曲倾覆破坏的边坡的稳定性是非常可行的。此外，使用新方法可以准确确定边坡的安全系数（即离心试验中的破坏载荷）和破坏面。因此，新提出的方法可以用作评估和设计抗倾角层理岩质边坡的理论工具。