發(fā)布時間：2018-07-08 11:25

  本文選題：風險管理 + 施工方案　； 參考：《西南交通大學》2013年碩士論文

【摘要】：鐵路是國民經(jīng)濟的大動脈,而鐵路安全是鐵路運輸?shù)纳�。隨著城市化進程的不斷加快,下穿鐵路施工的項目越來越多,規(guī)模越來越大。如何在確保既有鐵路的安全的前提下,保證工程的順利實施,就成為一個難點。下穿工程施工環(huán)境復雜,所面臨的不確定因素多,如果稍有不慎就可能導致鐵路安全事故的發(fā)生。 下穿既有鐵路施工中的風險具有多樣性和多層次性,本文針對下穿鐵路施工的特點,結合風險管理的相關理論,建立定性與定量相結合的數(shù)學模型。應用在施工工法的選擇及施工安全風險評價上,并提出風險控制措施。論文的主要內容包括以下幾個方面： (1)站在鐵路安全的角度,從下穿施工可能對鐵路安全造成的影響入手,針對施工過程中安全風險源多,涉及面廣的特點,識別出影響鐵路安全的風險因素,從勘察設計風險、施工管理風險、環(huán)境因素風險等三個方面建立了下穿鐵路施工過程中安全風險指標體系,運用層次分析法確定各因素相對于目標層的權重,利用模糊綜合評價的方法,對項目安全進行評價,最終達到對風險進行規(guī)避的目的。 (2)下穿鐵路施工,一般有盾構下穿、淺埋暗挖、管節(jié)頂進三種工法。本文針對下穿鐵路施工的特點,利用層次分析法與綜合評價變權分析結合的方法對三種方法的安全性進行分析,選擇對鐵路安全影響最小的施工方法。 (3)以北京市南水北調工程下穿京哈鐵路為例,結合風險管理理論,確定在本項目中,盾構法施工對于鐵路安全的影響最小。同時盾構法施工中的風險因素加以識別、估計,最終對本項目的風險程度進行評價。取得了良好的應用效果。
[Abstract]:Railway is the artery of national economy, and railway safety is the lifeline of railway transportation. With the development of urbanization, there are more and more projects under railway construction. How to ensure the safety of the existing railway and ensure the smooth implementation of the project has become a difficult point. The construction environment of underpass project is complex and the uncertain factors are many. If it is a little careless, it may lead to the occurrence of railway safety accident. The risks in the underpass existing railway construction are diversified and multi-layered. According to the characteristics of the underpass railway construction and the related theory of risk management, a mathematical model combining qualitative and quantitative analysis is established in this paper. It is applied to the selection of construction method and the risk evaluation of construction safety, and the risk control measures are put forward. The main contents of this paper include the following aspects: (1) from the point of view of railway safety, starting with the possible impact of underpass construction on railway safety, aiming at the characteristics of many safety risk sources and a wide range of aspects in the construction process, The risk factors affecting railway safety are identified, and the index system of safety risk is established from three aspects: survey and design risk, construction management risk and environmental risk. Using analytic hierarchy process to determine the weight of each factor relative to the target layer, using the fuzzy comprehensive evaluation method to evaluate the project safety, and finally achieve the purpose of avoiding the risk. Generally there are shield tunneling, shallow excavation, pipe node into three kinds of working methods. In this paper, according to the characteristics of the underpass railway construction, the safety of the three methods is analyzed by the combination of analytic hierarchy process (AHP) and comprehensive evaluation variable weight analysis. Select the construction method that has the least influence on railway safety. (3) taking Beijing South-to-North Water transfer Project as an example, combined with risk management theory, it is determined that shield construction has the least impact on railway safety. At the same time, the risk factors in shield construction are identified and estimated, and the risk degree of the project is evaluated finally. Good results have been obtained.
【學位授予單位】：西南交通大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：U455.43;U298

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