淺埋隧道全封閉噴涂防水體系及其可靠性研究
發(fā)布時間：2018-09-18 19:39
【摘要】：一般情況下,礦山法隧道防排水型式多設計為"以排為主",在特殊情況下才采用"排堵結合"的型式。近年來,隨著環(huán)保意識的提升,人們已經逐漸認識到地下水的任意排放對地下水資源和地表生態(tài)環(huán)境造成了不同程度的破壞。因此,本文針對淺埋隧道提出了一種新型的全封閉噴涂防水體系。此外,考慮到我國各類隧道工程運營階段的滲漏水病害非常普遍,隧道防水效果總體并不能令人滿意,基于此現(xiàn)狀對噴涂防水體系的可靠性進行了系列研究工作。本論文的主要研究內容及研究成果如下:(1)對隧道工程的地下水控制技術和觀點進行了全面研究,總結了我國傳統(tǒng)礦山法山嶺隧道、城市隧道和水下隧道的防排水體系,在此基礎上提出了一種用于淺埋隧道的全封閉噴涂防水體系,并對其作用機理進行了詳細論述。(2)對系統(tǒng)可靠性與效能、工程成本和進度之間的關系進行了論述,通過失效模式影響及危害性分析(FMECA)技術研究了全封閉噴涂防水體系的失效模式和失效原因,以專家問卷的形式獲得全封閉噴涂防水體系的風險因子及風險值,并用風險指數法和危害性矩陣圖法對風險因子進行了危害性分析比較。(3)介紹了用于大型復雜系統(tǒng)可靠性和安全評價的故障樹分析(FTA)技術的基本概念、建模步驟和分析方法,在此基礎上建立了全封閉噴涂防水體系的故障樹模型,對全封閉噴涂防水體系進行了定性分析和定量分析等失效性研究分析工作。(4)介紹了貝葉斯網絡模型的概念和算法,將貝葉斯網絡引入到全封閉噴涂防水體系的可靠性評價。在故障樹的基礎上映射建立全封閉噴涂防水的貝葉斯網絡模型,對全封閉噴涂防水體系進行風險預測和風險識別,并對節(jié)點事件的敏感性進行了分析比較。本文對淺埋隧道全封閉噴涂防水體系作用機理和可靠性進行了一定的研究工作,對發(fā)現(xiàn)全封閉噴涂防水體系中的隱患和薄弱環(huán)節(jié),提高防水系統(tǒng)可靠性,指導隧道防排水工程的設計、施工和運營管理具有重要意義。
[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.
【學位授予單位】：西南交通大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：U453.6
本文編號：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.
【學位授予單位】：西南交通大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：U453.6
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