基于DMAIC流程的GC电厂冷却塔项目施工安全风险管理研究

发布时间：2018-01-21 23:18

本文关键词： 施工安全风险管理冷却塔 DMAIC　出处：《江西理工大学》2017年硕士论文　论文类型：学位论文

【摘要】：由于电厂冷却塔在施工过程中技术要求高且高处施工较多,面临的施工风险复杂多变,如果未认清、评估、分析和控制好风险因子,将会给冷却塔项目施工带来巨大的安全隐患。本研究将六西格玛管理的DMAIC模型运用到冷却塔项目施工安全风险管理中,以期丰富冷却塔项目施工安全风险管理方式,使冷却塔项目施工安全风险管理更加科学化和流程化。DMAIC模型通过定义(Define)、测量(Measure)、分析(Analysis)、改进(Improve)和控制(Control)五个阶段来认识问题、量化问题、分析原因,处理问题并监控问题,对安全风险管理研究具有较好的借鉴意义。研究以GC电厂冷却塔工程项目为例,探讨其施工安全风险管理的DMAIC流程,其中:“定义”阶段主要任务是充分了解冷却塔施工项目安全风险,对各种问题进行识别。在定义出电厂冷却塔施工安全风险一般清单的基础上,根据GC电厂冷却塔工程项目特点,最终辨识出19个风险类型指标和75个关键因子;“测量”阶段主要任务是度量出安全风险的大小,为找出问题的原因提供事实依据与线索。以关键的安全风险因子为依据,构建出了GC电厂冷却塔项目施工安全风险评价指标体系,采用层次分析法确定评价指标的权重,模糊综合评价法评价此项目安全风险等级,最后测得GC电厂冷却塔项目的施工安全风险综合评价值为3.102∈(2,4],属安全风险较低级;“分析”阶段主要任务是找出哪些安全风险因素对安全风险度量的结果影响较大。研究表明,对GC电厂冷却塔项目的施工安全风险影响较大的关键安全风险因素主要表现为人的因素和管理因素;“改进”阶段主要任务是提出纠偏措施主动地降低安全风险发生和损失。为了尽可能全面地降低GC电厂冷却塔项目施工安全事故的发生,除了从人的因素和管理因素两大方面以及二级安全风险因素中对冷却塔项目施工安全影响较大的安全风险因素提出了改进措施,也从物的因素、方案和技术因素、环境因素这些方面中对项目的安全风险影响较大的因素提出了具体的应对措施;“控制”阶段主要任务是监督安全风险改进措施执行情况,反馈安全风险改进措施的实施效果。在进行GC电厂冷却塔项目施工安全风险控制中,如果安全改进措施没有很好地被实施,此时就需要整理和修改改进措施并重新实施改进措施,回到DMAIC流程中的源头,通过不断的有限循环监控,确保此体系能够实现持续改进绩效。本研究尝试基于DMAIC模型对电厂冷却塔项目施工安全风险管理流程进行设计与改进,一定还存在诸多不足之处,但研究表明,六西格玛管理的DMAIC模型可以运用到电厂冷却塔项目施工安全风险管理中并得到项目管理者的肯定,可为冷却塔项目施工安全风险管理提供另一思路选择。
[Abstract]:As the power plant cooling tower in the construction process of high technical requirements and high construction more, construction risk facing complex, if you do not recognize, evaluate, analyze and control risk factors, will bring huge risk to the safe cooling tower construction project. In this study, six sigma management, DMAIC model is applied to the construction safety risk management the cooling tower project, in order to enrich the cooling tower project construction safety risk management, the risk management of construction project of cooling tower is more scientific and standardized by defining the.DMAIC model (Define), (Measure) measurement, analysis and improvement (Analysis) (Improve) and control (Control) five stages to understand a problem and the quantization problem, analyze the causes, problems and monitoring, is a good reference for the study of safety risk management. The research on GC power plant cooling tower project as an example, discusses its construction safety The risk management of the DMAIC process, including: "the main task is to fully understand the definition of" cooling tower construction project safety risk, to identify various problems. In defining the foundation of cooling tower construction safety risk list, according to the characteristics of GC power plant cooling tower project, eventually identified 19 types of risk indicators and 75 a key factor; "the main task of measuring stage is a measure of security risks, to provide evidence and clues to find out the cause of the problem. The key to safety risk factor as the basis, build a GC power plant cooling tower project construction safety risk evaluation index system, using AHP to determine the weight of evaluation index. Fuzzy comprehensive evaluation method to evaluate the risk grade of this project, comprehensive evaluation of construction safety risk and finally measured GC power plant cooling tower project value is 3.102, (2,4], is a security risk The lower level; "analysis" stage the main task is to find out what influence the safety risk factors of safety risk measurement results greatly. The study shows that the construction safety risk of cooling tower project GC power plant key safety risk factors larger mainly for human factors and management factors; "improved" stage the main task is to put forward corrective measures take the initiative to reduce the security risk and loss. In order to reduce the GC power plant cooling tower project construction safety accidents as much as possible, apart from the human factors and management aspects of the two and two levels of safety risk factors of cooling tower project construction safety risk factors affecting the safety of large factors put forward the improvement measures. The material, design and technical factors, put forward specific measures on project safety risk factors the influence of these environmental factors; control The main task is the supervision system "safety risk measures to improve the implementation of the feedback effect, safety risk improvement measures. In the construction safety risk control GC power plant cooling tower project, if the security measures were not well implemented, you need to organize and modify the improvement measures and re implementation of improvement measures, back to source DMAIC in the process, through continuous finite cyclic monitoring, to ensure that the system can achieve continuous improvement performance. This study attempts to DMAIC model design and improvement process of construction safety risk management based on the project of a power plant cooling tower, there are still many shortcomings, but research shows that DMAIC model of six Sigma management applied to construction safety risk the management of power plant cooling tower project and project managers must, for risk management of construction projects to provide a cooling tower Choice of ideas.

【学位授予单位】：江西理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU71

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