落石落距的影响因素敏感性分析  

Sensitivity Analysis of Influencing Factors for Distance of Rockfall

作　　者：袁颖[1] 王帅伟[1] 刘珊珊[1] 

机构地区：[1]石家庄经济学院勘查技术与工程学院,河北石家庄050031

出　　处：《防灾科技学院学报》2015年第4期49-55,共7页Journal of Institute of Disaster Prevention

基　　金：国家自然科学基金(41301015)

摘　　要：随着人类工程活动进程的日益频繁,在边坡尤其是高陡岩质边坡工程中,落石灾害研究已经成为重要的研究方向之一,落石在斜坡上的运动受到诸多复杂因素的影响。采用正交试验法对影响落石落距的因素坡角、回弹系数和速度进行敏感性主次分析;并运用单变量试验方法,基于Rockfall数值模拟软件对落石落距的影响因素变化规律进行分析,其结果与正交试验表进行对照验证;最后以某崩塌区落石实例验算,参考试验数据分析结果提出建议,为人工边坡防治和拦挡工程的合理布设及优化设计提供依据。With increasingly frequent human engineering activities, rockfall disaster has become one of the research subject, especially in the engineering of high and steep rock slopes. Rockfall movements on the slope are under the influence of complex factors. In this paper, we made primary and secondary sensitivity analyses of the slope angle, the coefficient of restitution and the velocity that influence the distance of rockfall through the orthogonal test and investigated the influencing factors for distance of rockfall based on the Rockfall Simulation software through the univariate test. And then a comparative verifying study was made between the results. Finally, we made the checking calculation of a case rockfall in a collapse zone and advanced suggestions on the basis of the test data analyses to provide reference for the reasonable layout and the optimization design of artificial slope prevention and block engineering.

关 键 词：落石落距 影响因素 正交试验 实例验证 ROCK FALL 

分 类 号：P642.2[天文地球—工程地质学]