三峡库区滑坡治理工程中抗滑桩综合优化研究

根据滑坡推力分布特点,提出了不等桩间距布设原则。结合抗滑桩桩间距模型的研究、截面尺寸优化研究和锚固比研究的相关成果,在满足安全系数设计要求的前提下实现工程造价最小化的优化目标的前提下,建立了考虑桩截面宽度、截面高度、桩间距和锚固比各参数的优化求解模型,采用黄金分割优化算法和计算机编程,为抗滑桩设计提供了一个综合优化研究方案。结合三峡库区工程实例应用,表明该综合优化方案具有显著的经济效益。

Comprehensive Optimum Study on Anti-slide Piles of Landslide Control Project in Three Gorges Reservoir Area

According to the characteristics of the driving force of the sliding mass,the differential pile interval distribution principle is proposed.Based on the study on the pile interval,cross-section dimension and anchoring length,to achieve the optimal aim of the lowest project charge and enough safety factor,an optimization solution model with considering pile interval,cross-section dimension and anchoring length is presented.The corresponding program has been developed by using the golden section algorithm and the computer programming as well,which provides a comprehensive optimum scheme for anti-slide piles.The application insistence of landslide in the Three Gorges Reservoir Area shows that the optimum design method is quite economical and effective.