摘要
采用理论公式法和Rockfall程序数值模拟法,对四川省汶川地区裕丰岩上部失稳危岩体孤石的稳定性进行了研究。结果表明:在自然、地震和暴雨工况下,暴雨工况是危岩体孤石失稳的主要因素。孤石在下落时运动特征具有随机性,通过对孤石弹跳高度和运动能量的分析,可以更有效地对危岩体孤石进行防护和治理。
By using theoretical formula and Rockfall process numerical simulation method, upper buckling stability was studied for dangerous rock mass boulder of Yufeng, Wenchuan, Sichuan. The results show that under natural, earthquake and storm conditions, heavy rain is the main factor of the instability of the dangerous rock mass boulder, motion characteristics of rock fall is random, and through the analysis of bounce height and movement energy of the boulder, dangerous rock mass boulder may be more effectively prevented and controlled.
作者
杨智翔
裴向军
袁进科
YANG Zhixiang PEI Xiangjun YUAN Jinke(State Key Laboratory of Geological Disaster Prevention and Control and Geological Environmental Protection, Chengdu University of Technology, Chengdu 610059, China)
出处
《路基工程》
2017年第1期25-29,共5页
Subgrade Engineering
基金
四川省科技创新团队项目(2011JTD012)
交通运输部建设科技项目:四川藏区高海拔高烈度条件下公路建设减灾关键技术研究(2013 318 800 020)
关键词
危岩体
孤石
稳定性
运动特征
治理
dangerous rock mass
boulder
stability
movement characteristics
control
