基于网络分析法的公路桥梁施工安全风险评价及应用研究

发布时间：2018-01-12 01:11

本文关键词：基于网络分析法的公路桥梁施工安全风险评价及应用研究　出处：《长沙理工大学》2014年硕士论文　论文类型：学位论文

【摘要】：近年来,随着我国交通运输业的快速发展,公路桥梁施工技术得到了长足的进步,与此同时,由于建设环境艰苦、施工工序复杂、施工管理难度大等诸多原因,使得公路桥梁施工过程中安全事故频发,往往造成严重的人员伤亡和经济损失。因此,有必要针对公路桥梁施工过程中的安全风险问题展开研究。本文在总结了国内外相关研究的基础之上,通过分析论证,建立了基于网络分析法的公路桥梁施工安全风险评价方法,并在案例分析中介绍了该方法的应用,文章的研究范围涵盖了以下三个方面。首先,依据全面性和系统性的原则,建立了基于WBS-RBS的公路桥梁施工安全风险识别方法,并在案例分析中运用该方法识别出了M高架桥各重要分项工程所蕴含的安全风险因素,根据识别出的安全风险因素,建立了安全风险评价的指标体系。然后,根据安全风险因素之间具有相互关联、相互影响的特点,选取网络分析法来建立施工安全风险评价模型,并将该模型运用到M高架桥工程实例中,使用决策软件Super Decisions进行辅助运算,计算出了M高架桥旋挖成孔灌注桩工程中各安全风险因素的权重排序,确定了该分项工程的安全风险等级,通过专家分析,验证了该模型的计算结果符合工程客观实际。最后,在安全风险评价的基础上,介绍了基于PDCA循环的公路桥梁施工安全风险控制的思路与流程,给出了针对公路桥梁工程项目整体的策略性安全风险控制方法和针对分项工程的技术性安全风险控制方法,并将安全风险控制的流程与方法运用到M高架桥工程实例中,制定了可行有效的安全风险控制方案。
[Abstract]:In recent years, with the rapid development of transportation in China, highway and bridge construction technology has made great progress. At the same time, because of the construction environment is difficult, the construction process is complex, the construction management is difficult and so on. Make the highway bridge construction process safety accidents occur frequently, often causing serious casualties and economic losses. It is necessary to carry out research on the safety risk in the process of highway and bridge construction. This paper summarizes the relevant research at home and abroad, through the analysis and demonstration. Based on the network analysis method of highway bridge construction safety risk evaluation method is established, and the application of this method is introduced in the case analysis. The research scope of this paper covers the following three aspects. According to the principle of comprehensiveness and systematicness, the method of highway bridge construction safety risk identification based on WBS-RBS is established. And in the case analysis, the paper uses this method to identify the safety risk factors contained in the important sub-projects of M viaduct, and establishes the index system of safety risk evaluation according to the identified safety risk factors. According to the characteristics that the safety risk factors are interrelated and affect each other, the network analysis method is selected to establish the construction safety risk evaluation model, and the model is applied to the M viaduct engineering example. With the help of decision software Super Decisions, the weight order of safety risk factors in M viaduct is calculated. The safety risk grade of the sub-project is determined, and the calculation results of the model are verified by expert analysis. Finally, on the basis of safety risk evaluation, it is verified that the calculation results of the model are in line with the objective reality of the project. This paper introduces the thought and flow of highway bridge construction safety risk control based on PDCA cycle. The strategic safety risk control method for the whole highway and bridge project and the technical safety risk control method for the sub-project are given. The process and method of safety risk control are applied to the M viaduct project, and a feasible and effective safety risk control scheme is established.
【学位授予单位】：长沙理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U445

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