岩土力学Issue(z2)：242-246,251,6.
倾倒型黄土崩塌稳定性判据及其影响范围研究
Stability criterion and influencing zone of loess collapse with toppling style
摘要
Abstract
Loess collapse with toppling style is one of the common disasters in loess area. Based on its forming feature, the solutions of upper and lower bound for vertical fracture of the loess collapse are derived in light of the critical state of both static equilibrium and plastic flow. The underside attitude of the collapse is calculated by the Mohr-Coulomb criterion. Thereby the geometric characteristics of the collapse can be determined;then the stability criterion is established based on the balance of force and torque;and the stability evaluation of loess collapse with toppling style is realized. The kinematics equation for loess collapse with topping is built by its toppling deformation conditions. By solving the equation, the trajectory of the loess collapse with toppling style is reconstructed;and the range of the disaster can be detected. The research results reveal the forming mechanism of loess collapse with toppling style, so as to provide a theoretical basis for its governance approaches and its identification with the safe zone of construction project.关键词
黄土崩塌/倾倒/稳定性判据/影响范围Key words
loess collapse/toppling style/stability criterion/influencing zone分类
建筑与水利引用本文复制引用
叶万军,董西好,杨更社,李晓..倾倒型黄土崩塌稳定性判据及其影响范围研究[J].岩土力学,2013,(z2):242-246,251,6.基金项目
国家自然科学基金项目（No.41172262）；陕西省青年科技新星项目(No.KJXX-37)；教育部新世纪人才支持计划项目(No.NCET-12-1044) （No.KJXX-37）
