深基坑开挖施工安全风险管理研究

发布时间：2018-02-24 13:12

本文关键词： 深基坑施工安全风险管理风险量表结构方程模型　出处：《西安科技大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着我国经济的迅猛发展,社会的进步,建设空间日趋紧张,为了更充分的利用土地,高层建筑大量涌现,产生了越来越多的深基坑工程。随着深基坑工程开挖规模和深度的不断增大以及地质环境的复杂多样性,深基坑施工的复杂程度也在不断提高。近年来,由于技术、管理不善等原因,在深基坑的施工过程中发生了不少事故,给国家和社会带来了非常大的经济损失,不仅延误了工期,有的事故甚至引起邻近建筑物倒塌和人员伤亡,造成了非常不好的社会影响。因此,加强深基坑开挖施工过程中的安全风险管理,预防及控制潜在风险,对保障深基坑开挖施工的安全性具有重要的现实意义。论文基于风险管理相关理论,借鉴学者们有关深基坑工程施工的研究结论,结合我国深基坑工程施工的实际情况,识别出深基坑开挖施工安全风险管理六大影响因素,包括人员因素、机械因素、材料因素、方法因素、环境因素和管理因素,构建深基坑开挖施工安全风险管理体系,编制深基坑开挖施工安全风险量表,通过调查问卷的设计、发放、回收及初步的描述性统计分析和信效度检验,构建适合深基坑开挖施工安全风险管理现状的一阶及二阶结构方程概念模型,收集用于结构方程分析的数据,运用AMOS17.0结构方程软件对构建的模型进行拟合、评价和结果解释,通过实证分析验证了结构方程模型的研究假设,最后提出降低深基坑开挖施工安全风险事故的对策建议。希望通过本文的研究,有利于建筑施工企业提出具有针对性的整改措施,提高我国深基坑开挖施工安全风险管理水平。
[Abstract]:With the rapid development of our economy and social progress, the construction space is becoming increasingly tight. In order to make full use of land, high-rise buildings have emerged in large numbers. With the increasing scale and depth of deep foundation pit excavation and the complex diversity of geological environment, the complexity of deep foundation pit construction is also increasing. Due to poor management and other reasons, a lot of accidents occurred in the construction process of deep foundation pit, which brought great economic losses to the country and society, not only delayed the construction period, but also caused some accidents even caused the collapse of adjacent buildings and casualties. Therefore, to strengthen the safety risk management during the construction of deep foundation pit, to prevent and control the potential risks, Based on the theory of risk management, this paper draws on the research conclusions of scholars on the construction of deep foundation pit, and combines the actual situation of deep foundation pit construction in our country. This paper identifies six factors affecting the safety risk management of deep foundation pit excavation, including personnel factor, mechanical factor, material factor, method factor, environment factor and management factor, and constructs the safety risk management system of deep foundation pit excavation. Through the design, distribution, recovery and preliminary descriptive statistical analysis and reliability and validity test of the questionnaire, the safety risk scale for deep foundation pit excavation construction is compiled. A conceptual model of first-order and second-order structure equations suitable for the safety risk management of deep foundation pit excavation is constructed. The data used for structural equation analysis are collected, and the model is fitted, evaluated and interpreted by using AMOS17.0 structural equation software. The research hypothesis of structural equation model is verified by empirical analysis. Finally, the countermeasures and suggestions to reduce the risk of deep foundation pit excavation are put forward. It is helpful for the construction enterprises to put forward the corresponding rectification measures and to improve the level of safety risk management in the excavation of deep foundation pit in China.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU753;TU714

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