浅埋隧道全封闭喷涂防水体系及其可靠性研究
发布时间：2018-09-18 19:39
【摘要】：一般情况下,矿山法隧道防排水型式多设计为"以排为主",在特殊情况下才采用"排堵结合"的型式。近年来,随着环保意识的提升,人们已经逐渐认识到地下水的任意排放对地下水资源和地表生态环境造成了不同程度的破坏。因此,本文针对浅埋隧道提出了一种新型的全封闭喷涂防水体系。此外,考虑到我国各类隧道工程运营阶段的渗漏水病害非常普遍,隧道防水效果总体并不能令人满意,基于此现状对喷涂防水体系的可靠性进行了系列研究工作。本论文的主要研究内容及研究成果如下:(1)对隧道工程的地下水控制技术和观点进行了全面研究,总结了我国传统矿山法山岭隧道、城市隧道和水下隧道的防排水体系,在此基础上提出了一种用于浅埋隧道的全封闭喷涂防水体系,并对其作用机理进行了详细论述。(2)对系统可靠性与效能、工程成本和进度之间的关系进行了论述,通过失效模式影响及危害性分析(FMECA)技术研究了全封闭喷涂防水体系的失效模式和失效原因,以专家问卷的形式获得全封闭喷涂防水体系的风险因子及风险值,并用风险指数法和危害性矩阵图法对风险因子进行了危害性分析比较。(3)介绍了用于大型复杂系统可靠性和安全评价的故障树分析(FTA)技术的基本概念、建模步骤和分析方法,在此基础上建立了全封闭喷涂防水体系的故障树模型,对全封闭喷涂防水体系进行了定性分析和定量分析等失效性研究分析工作。(4)介绍了贝叶斯网络模型的概念和算法,将贝叶斯网络引入到全封闭喷涂防水体系的可靠性评价。在故障树的基础上映射建立全封闭喷涂防水的贝叶斯网络模型,对全封闭喷涂防水体系进行风险预测和风险识别,并对节点事件的敏感性进行了分析比较。本文对浅埋隧道全封闭喷涂防水体系作用机理和可靠性进行了一定的研究工作,对发现全封闭喷涂防水体系中的隐患和薄弱环节,提高防水系统可靠性,指导隧道防排水工程的设计、施工和运营管理具有重要意义。
[Abstract]:In general, mine tunnel waterproof and drainage types are mostly designed as "drainage mainly", and only under special circumstances are "drainage and plugging combined" type. In recent years, with the promotion of environmental awareness, people have gradually realized that the arbitrary discharge of groundwater has caused varying degrees of damage to groundwater resources and surface ecological environment. Therefore, a new type of fully sealed spray waterproofing system for shallow tunnel is proposed in this paper. In addition, considering that the leakage disease of all kinds of tunnel engineering in our country is very common, and the waterproofing effect of tunnel is not satisfactory, a series of research work on the reliability of spraying waterproofing system is carried out based on the present situation. The main research contents and results of this paper are as follows: (1) the underground water control technology and viewpoint of tunnel engineering are studied comprehensively, and the waterproofing and drainage systems of traditional mine Fayshanling tunnel, urban tunnel and underwater tunnel in China are summarized. On this basis, a fully sealed spray waterproofing system for shallow tunnel is proposed, and its action mechanism is discussed in detail. (2) the relationship between system reliability and efficiency, project cost and schedule is discussed. The failure mode and failure reason of full seal spray waterproofing system were studied by (FMECA) technology, and the risk factors and risk values of full seal spraying waterproofing system were obtained by means of expert questionnaire. The risk factors are analyzed and compared with the risk index method and the hazard matrix diagram method. (3) the basic concept, modeling steps and analysis methods of fault tree analysis (FTA) technology for reliability and safety evaluation of large and complex systems are introduced. On the basis of this, the fault tree model of fully sealed spray waterproofing system is established, and the failure analysis work such as qualitative analysis and quantitative analysis are carried out. (4) the concept and algorithm of Bayesian network model are introduced. The Bayesian network is introduced to the reliability evaluation of fully sealed spray waterproofing system. On the basis of fault tree mapping, the Bayesian network model of fully sealed spray waterproofing is established, and the risk prediction and risk identification of fully sealed spray waterproofing system are carried out, and the sensitivity of node events is analyzed and compared. In this paper, the mechanism and reliability of the fully closed spray waterproofing system in shallow tunnel are studied, and the hidden trouble and weak link in the waterproofing system are found, and the reliability of the waterproofing system is improved. It is of great significance to guide the design, construction and operation management of tunnel waterproofing and drainage engineering.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U453.6
本文编号：2248925
[Abstract]:In general, mine tunnel waterproof and drainage types are mostly designed as "drainage mainly", and only under special circumstances are "drainage and plugging combined" type. In recent years, with the promotion of environmental awareness, people have gradually realized that the arbitrary discharge of groundwater has caused varying degrees of damage to groundwater resources and surface ecological environment. Therefore, a new type of fully sealed spray waterproofing system for shallow tunnel is proposed in this paper. In addition, considering that the leakage disease of all kinds of tunnel engineering in our country is very common, and the waterproofing effect of tunnel is not satisfactory, a series of research work on the reliability of spraying waterproofing system is carried out based on the present situation. The main research contents and results of this paper are as follows: (1) the underground water control technology and viewpoint of tunnel engineering are studied comprehensively, and the waterproofing and drainage systems of traditional mine Fayshanling tunnel, urban tunnel and underwater tunnel in China are summarized. On this basis, a fully sealed spray waterproofing system for shallow tunnel is proposed, and its action mechanism is discussed in detail. (2) the relationship between system reliability and efficiency, project cost and schedule is discussed. The failure mode and failure reason of full seal spray waterproofing system were studied by (FMECA) technology, and the risk factors and risk values of full seal spraying waterproofing system were obtained by means of expert questionnaire. The risk factors are analyzed and compared with the risk index method and the hazard matrix diagram method. (3) the basic concept, modeling steps and analysis methods of fault tree analysis (FTA) technology for reliability and safety evaluation of large and complex systems are introduced. On the basis of this, the fault tree model of fully sealed spray waterproofing system is established, and the failure analysis work such as qualitative analysis and quantitative analysis are carried out. (4) the concept and algorithm of Bayesian network model are introduced. The Bayesian network is introduced to the reliability evaluation of fully sealed spray waterproofing system. On the basis of fault tree mapping, the Bayesian network model of fully sealed spray waterproofing is established, and the risk prediction and risk identification of fully sealed spray waterproofing system are carried out, and the sensitivity of node events is analyzed and compared. In this paper, the mechanism and reliability of the fully closed spray waterproofing system in shallow tunnel are studied, and the hidden trouble and weak link in the waterproofing system are found, and the reliability of the waterproofing system is improved. It is of great significance to guide the design, construction and operation management of tunnel waterproofing and drainage engineering.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U453.6
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