上海大学学报(自然科学版) ›› 2017, Vol. 23 ›› Issue (6): 949-.doi: 10.12066/j.issn.1007-2861.1806

• 研究论文 • 上一篇    下一篇

典型松散体边坡滚石运动距离的运动学分析

张亚辉1, 张孟喜1, 陈强2, 王东2, 罗康军2   

  1. 1. 上海大学土木工程系, 上海 200444; 2. 四川省交通运输厅公路规划勘察设计研究院, 成都 610041
  • 收稿日期:2016-03-03 出版日期:2017-12-30 发布日期:2017-12-30
  • 通讯作者: 张孟喜(1963—), 男, 教授, 博士生导师, 博士, 研究方向为岩土工程及地下结构. E-mail: mxzhang@i.shu.edu.cn
  • 作者简介:张孟喜(1963—), 男, 教授, 博士生导师, 博士, 研究方向为岩土工程及地下结构. E-mail: mxzhang@i.shu.edu.cn
  • 基金资助:

    四川省交通运输厅科技资助项目(2012A2-4)

Kinematics analysis for calculating distance of rockfalls on typical loose media slope

ZHANG Yahui1, ZHANG Mengxi1, CHEN Qiang2, WANG Dong2, LUO Kangjun2   

  1. 1. Department of Civil Engineering, Shanghai University, Shanghai 200444, China;
    2. Highway Planning, Survey, Design and Research Institute, Sichuan Provincial Transport Department, Chengdu 610041, China
  • Received:2016-03-03 Online:2017-12-30 Published:2017-12-30

摘要:

绕避距离是山区公路选线需要确定的重要指标之一. 采用运动学的分析方法, 在考虑碰撞过程中滚石自转影响的情况下推导出典型松散体边坡滚石运动距离的计算公式, 利用Rocfall软件构建现场试验模型, 并将软件模拟、公式计算、现场试验测量的结果作对比, 验证了推导的公式可行性, 对于滚石绕避距离的确定具有一定的指导意义. 对滚石运动距离的典型影响因素进行分析, 为进一步研究滚石的运动奠定了基础.

关键词: 数值模拟, 影响因素, 运动学理论, 自转, 边坡滚石

Abstract:

Determining avoiding routes is a key specification for highway location in mountain areas. According to the kinematics theory, formulae are derived for calculating distance of rockfalls on loose slope, taking into consideration the influence of rotation during collision. Using the software Rockfall, a model of field test is constructed. Results of software modeling, formula-based calculation and measurement are compared to verify feasibility of the formula that has guiding significance for determining avoiding routes. Typical factors influencing distance of rockfalls are analyzed to lay foundation for further research.

Key words: influencing factor, kinematics theory, numerical simulation, rotation, slope rockfall