非微分Morgenstern-Price法在边坡稳定分析中的应用  

Application of Non-Differential Form of Morgenstern-Price Method in Slope Stability Analysis

作　　者：胡辉[1] 董梅[1] 姚磊华[1] 

机构地区：[1]中国地质大学工程技术学院,北京100083

出　　处：《桂林工学院学报》2008年第3期344-348,共5页Journal of Guilin University of Technology

基　　金：河南省科技招标项目([2006]26426)

摘　　要：推导出Morgenstern—Price法的非微分形式，并编制了基于该方法的程序：设置并行迭代，达到传统MP法一般通用性的要求；设置二一迭代，提高计算收敛速度。通过ACADS均质、非均质边坡算例得出的安全系数与其他算法的比较，验证了该算法的科学可靠性。将此法应用于铁生沟滑坡：天然与饱和状态土体的安全系数分别为1．0838和0．9600，与报告结果的安全系数1．12～1．14和1．00～1．03的范围值基本吻合，表明该方法适用于非均质实际边坡，对边坡的后续监测、防护工作具有指导作用。The non-differential form of the Morgenstern-Price method is deduced and the program based on this method is carried out. The parallel iteration is applied in the program for the traditional MP method. The two-one iteration is to accelerate the convergence. Safety factors of the homogeneous and heterogeneous slope in ACADS are calculated by the non-differential method. The non-differential method is scientific and reliable from the compari- son of the safety factors calculated by the non-differential and other method. The safety factors of Tieshenggou landslide calculated by the non-differential method in the natural and saturated state are 1. 083 8 and 0. 960 0, within the range of 1.12 - 1.14 and 1.00- 1.03 in the investigation report. The results indicate that the non-dif- ferential form of Morgenstern-Priee method is applicable to the heterogeneous slope,and can also be a guide for the monitoring and protection of the slope.

关 键 词：极限平衡法 非微分形式Morgenstem-Price法 安全系数 遗传算法 

分 类 号：TU432[建筑科学—岩土工程]