崩塌类灾害分析与评价研究

• 作 者: 张永圣 方超
• 机 构: 山东省公路桥梁建设有限公司,
• 出 处: 科技致富向导
• 发表日期: 2012年18期
• 关键词: 灾害分析 危岩体 灾害类型 等级划分标准 崩塌灾害 崩塌类灾害 公路灾害 交通运输安全 结构面 缓倾角

崩塌类灾害作为公路灾害的主要灾害之一,已经严重影响到了公路的通行能力和交通运输安全。为了全面提高公路的抗灾能力,保障公路的畅通,对崩塌类灾害的基本特征及发生机理的进行研究,将其分为单体危岩、群体危岩及黄土崩塌三大类型,并根据破坏力学机制,对各大类型灾害进行了细致的划分。本文给出了崩塌规模及灾害灾度的计算模型,并提出了崩塌灾害等级划分标准。

As one of the main disasters of highway disasters, collapse disasters have severely affected the capacity of roads and traffic safety. In order to fully improve the ability of the highway to resist disaster and ensure the smooth flow of the highway, the basic characteristics and mechanism of the collapse-type disaster are studied and divided into three types: single dangerous rock, group dangerous rock and loess collapse, and according to the destructive mechanics Mechanism, a detailed classification of major types of disasters. In this paper, the computational models of collapse scale and disaster hazard are given, and the criteria of grade of collapse hazard are proposed.