新凉风垭隧道塌方危险性评估及相应防治措施研究

发布时间：2018-07-06 09:10

本文选题：塌方评估 + 新凉风垭隧道　；参考：《西南交通大学》2015年硕士论文

【摘要】：在隧道工程等地下工程的施工过程中,由工程地质灾害引发的工程事故不断的出现,使得我们对隧道工程的施工过程中所遇到的风险情况越加关注,本研究课题根据对新凉风垭隧道的实际情况,对隧道中出现塌方状况的可能性大小进行详细的讨论研究,对于施工当中已经发生的塌方情况,也进行有关防治措施的研究。本论文的研究课题将贵州省新凉风垭隧道作为课题研究工作的依托项目,着重对该隧道塌方情况进行危险性评估,其中需要展开研究的主要内容如下所示,主要有四个方面的工作：(1)通过查阅相关文献和教材,将隧道塌方进行不同的分类,详细论述影响隧道塌方的各个方面不同因素,为后文指标因子的择取提供参考依据。(2)通过在本论文隧道项目部的长期实习,对隧址区的工程地质条件和水文条件有了全面的了解,从中筛选出部分影响隧道塌方的影响因子,作为后文评估体系中的评价因子。统计出82座近些年来发生的隧道塌方,作为危险性评估体系中的指标量化标准的来源。(3)本论文需要用一种较为客观理性的评估方法,将各个评价指标因子进行数值量化和无量纲化处理,基于可拓理论的基础下,通过简单关联函数法求得关联度,通过有关公式得出各指标因子权重值,创建隧道塌方危险程度级别的关联函数求出隧道危险程度级别的关联度,最后可以得出工段所处的危险程度级别。(4)对于隧道塌方的防治措施研究也是本论文比较重要的一环,针对评估结果中可能发生隧道塌方的部分工段,需要用地质调查、物探技术等手段来预判掌子面前方状况是否符合上述评估结果,从而通过探查结果来布置合理的初期和超前支护手段。
[Abstract]:In the construction process of underground engineering such as tunnel engineering, engineering accidents caused by engineering geological disasters appear constantly, which makes us pay more and more attention to the risk situation encountered in the construction process of tunnel engineering. According to the actual situation of Xinliangfengya tunnel, the possibility of collapse in the tunnel is discussed and studied in detail. The research topic of this paper takes Xinliangfengya tunnel of Guizhou province as the project of the research work, and emphasizes on the risk assessment of the collapse of the tunnel. The main contents of the research need to be carried out as follows. There are four main aspects of the work: (1) through consulting relevant literature and teaching materials, the tunnel collapse is classified into different categories, and the different factors that affect the tunnel collapse are discussed in detail. (2) through the long-term practice in the project department of this paper, we have a comprehensive understanding of the engineering geological and hydrological conditions in the tunnel site area, and screen out some influence factors that affect the tunnel collapse from the selection of the later paper index factors, (2) through the long-term practice in the tunnel project department of this paper, we have a comprehensive understanding of the engineering geological conditions and hydrological conditions of the tunnel site area. As an evaluation factor in the later evaluation system. 82 tunnel collapses occurred in recent years have been counted as the source of quantitative criteria in the risk assessment system. (3) A more objective and rational evaluation method is needed in this paper. Each evaluation index factor is numerically quantified and dimensionless. On the basis of extension theory, the correlation degree is obtained by the simple correlation function method, and the weight value of each index factor is obtained by the relevant formula. Establishing the correlation function of tunnel collapse hazard level to calculate the correlation degree of tunnel hazard level, finally we can get the danger level of tunnel collapse level. (4) the study of prevention and control measures for tunnel collapse is also an important part of this paper. In view of some sections of the tunnel that may collapse in the evaluation results, it is necessary to use geological investigation, geophysical techniques and other means to pre-judge whether the situation in front of the face conforms to the above evaluation results. Therefore, reasonable initial and advanced support methods are arranged through the results of exploration.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U458.3

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