一种基于动态权重的施工安全风险评估新方法

发布时间：2018-02-14 18:17

本文关键词： 动态风险评估动态权重隧道施工塌方　出处：《地下空间与工程学报》2017年S1期 　论文类型：期刊论文

【摘要】：动态风险评估是反馈施工信息并实时控制从而规避隧道施工风险的一种重要手段。基于传统指标体系法,引入动态权重的概念,建立了一种动态风险评估模型,即以普适标准权重表征隧道施工风险历史信息,以工程标准权重表征隧道工程特殊性,以权重更新系数表征隧道施工过程中评估指标权重的动态变化。并以隧道工程施工塌方风险为例,论述了动态风险评估模型的建立与实施流程。与目前相关指南推荐的方法相比较,本方法把工程施工过程通过参数方式引入,从而实现了真正的动态施工、动态风险评估的目的,可为实际隧道工程施工风险管理所借鉴。
[Abstract]:Dynamic risk assessment is an important means of feedback construction information and real-time control to avoid tunnel construction risk. Based on the traditional index system method and the concept of dynamic weight, a dynamic risk assessment model is established. That is to say, the historical information of tunnel construction risk is represented by universal standard weight, and the particularity of tunnel construction is characterized by engineering standard weight. The dynamic change of evaluation index weight during tunnel construction is characterized by the renewal coefficient of weight, and the collapse risk of tunnel construction is taken as an example. This paper discusses the establishment and implementation process of dynamic risk assessment model. Compared with the methods recommended by relevant guidelines, this method introduces the engineering construction process by parameter method, thus realizing the real dynamic construction. The purpose of dynamic risk assessment can be used for reference in actual tunnel construction risk management.
【作者单位】：同济大学岩土及地下工程教育部重点实验室;同济大学土木工程学院地下建筑与工程系;
【基金】：浙江省交通厅科技项目(2015J22,2012H29)
【分类号】：U455.1

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