论文部分内容阅读
预应力锚索抗滑桩作为一种实用有效的支挡工程措施己在边坡整治工程中得到了广泛地应用,然而其理论研究远远滞后于工程应用。本文以极限平衡理论为基础,假定滑动面为圆弧面或近似于圆弧面,采用Bishop(毕肖普法)法,并考虑竖向条间剪力对滑移面抗剪强度的影响,建立了滑坡最危险滑移面的搜索模型,并推导了稳定系数的求解公式,运用遗传算法对支护结构最危险滑移面进行动态搜索和确定,计算其稳定性系数,避免了在优化设计中陷入局部最小值的缺点,更具有有效性和准确性。
Pre-stressed anchor anti-sliding piles have been widely used in slope rehabilitation projects as a practical and effective support engineering measure. However, its theoretical research is far behind the engineering application. In this paper, based on the theory of limit equilibrium, assuming that the sliding surface is an arc surface or similar to an arc surface, the Bishop method is used and the effect of vertical inter-bar shear on the shear strength of the sliding surface is established. The search model of the most dangerous sliding surface of landslides is derived, and the formula for the stability factor is deduced. The genetic algorithm is used to dynamically search and determine the most dangerous sliding surface of the supporting structure, and the stability coefficient is calculated to avoid falling into the optimization design. The disadvantage of the local minimum is more effective and accurate.