论文部分内容阅读
在土坡稳定分析的经典极限平衡法中,一般先假设土坡的最危险滑裂面形状,然后利用不同的搜索方法寻求最优解。作者认为,基于经典极限平衡理论的边坡滑裂面是由土条底部的直线段相连构成的任意形状滑裂面;定义土条底部的纵轴坐标或者与水平面的夹角为搜索变量,采用经验遗传-单纯形算法搜索其最优解,进行了土钉加固土质边坡的稳定性验算,与圆弧滑裂面法进行了比较分析,结果表明作者的方法合理可行。
In the classical limit equilibrium method of slope stability analysis, the shape of the most dangerous slip surface of the slope is generally assumed first, and then the optimal solution is sought by different search methods. The author thinks that the slope slip surface based on the classical limit equilibrium theory is an arbitrary shape slip surface formed by connecting straight line segments at the bottom of the soil strip. The vertical axis coordinates or the angle between the bottom surface of the soil strip and the horizontal plane are defined as search variables. Based on the empirical genetic algorithm and simplex algorithm, the optimal solution was searched and the stability of soil-soil slope reinforced by soil nailing was checked. Comparing with the arc-slip surface method, the results show that the author’s method is reasonable and feasible.