公路高瓦斯隧道施工风险评估与管理系统的研究

发布时间：2018-04-21 15:47

本文选题：高瓦斯隧道 + 洞身坍塌　；参考：《重庆交通大学》2014年硕士论文

【摘要】：我国西部为多山重丘陵区，地形、地质条件复杂，在高速公路隧道建设中遇到了很多复杂的灾害问题，而高瓦斯隧道瓦斯爆炸是隧道施工中灾害比较严重的问题之一，对此种情况下如何保证工程进度，降低工程损失的问题亟待解决。本文以成都第二绕城高速公路（东段）丹景二号隧道依托，在对隧道施工过程中人机环境分析研究的基础上，对丹景二号隧道施工过程中洞身坍塌和瓦斯突涌进行了风险分析和评估，提出了相应的风险应对措施，并提出一套风险管理系统。主要内容如下： ①通过分析丹景二号隧道施工中的人、机、环境等风险因素，采用专家打分法获取第一手资料，并利用层次分析法、熵度法等方法对各类风险因素进行综合评估，得出各个风险因素在丹景二号隧道整个风险体系中的风险值，最终对丹景二号隧道进行综合评估并提出宏观的管理建议。 ②通过采集隧道内围岩收敛和拱顶沉降数据，进行系统分析丹景二号隧道在施工过程中围岩位移变形情况，针对隧道坍塌风险情况提出相应的风险应对措施。 ③对于丹景二号隧道属于高瓦斯隧道，分别采用远程无线监测报警系统监测、人工瓦斯监测和超前瓦斯预报来进行瓦斯风险监控，在瓦斯预测结果的基础上，重点采取通风和超前探孔两项措施减小瓦斯突涌风险。 ④结合丹景二号隧道目前管理现状，提出一套风险管理系统，重点介绍了该系统管理流程、组织机构及相应的风险管理制度，，这套系统不仅能够在第一时间启动风险应急预案，同时也能够为其他类似工程提供借鉴。
[Abstract]:The western part of our country is a mountainous and heavy hilly area with complex topography and geological conditions. In the construction of highway tunnels, there are many complicated disaster problems, and the gas explosion in high gas tunnel is one of the most serious problems in tunnel construction. In this case, how to ensure the progress of the project and reduce the project losses are urgently needed to be solved. Based on the second Chengdu Expressway (East Section) Danjing No. 2 Tunnel, this paper analyzes and studies the man-machine environment during the tunnel construction. The risk analysis and evaluation of collapse and gas outburst during the construction of Danjing No. 2 Tunnel are carried out, the corresponding risk countermeasures are put forward, and a set of risk management system is put forward. The main contents are as follows: 1 by analyzing the risk factors such as human, machine, environment and so on in the construction of Danjing No. 2 Tunnel, the expert scoring method is used to obtain the first-hand information, and the analytic hierarchy process (AHP) and the entropy method are used to comprehensively evaluate all kinds of risk factors. The risk value of each risk factor in the whole risk system of Danjing No. 2 Tunnel is obtained. Finally, the comprehensive evaluation of Danjing No. 2 Tunnel is carried out and the macroscopic management suggestions are put forward. (2) by collecting the data of surrounding rock convergence and dome settlement in the tunnel, the displacement and deformation of surrounding rock during the construction of Danjing No. 2 tunnel are systematically analyzed, and the corresponding risk countermeasures are put forward in view of the collapse risk of the tunnel. 3 for Danjing2 tunnel belongs to high gas tunnel, remote wireless monitoring and alarm system monitoring, artificial gas monitoring and advanced gas forecasting are used to monitor gas risk respectively, and on the basis of gas prediction results, Two measures, ventilation and advance hole exploration, were adopted to reduce the risk of gas outburst. 4 according to the current management situation of Danjing No. 2 Tunnel, a set of risk management system is put forward, and the management flow, organization and corresponding risk management system of the system are introduced. This system can not only start the risk emergency plan in the first time. At the same time, it can also provide reference for other similar projects.
【学位授予单位】：重庆交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U455.1

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