五松瓦斯隧道施工危险性评估研究

发布时间：2018-03-28 16:23

本文选题：瓦斯隧道　切入点：瓦斯扩散　出处：《安徽理工大学》2014年硕士论文

【摘要】：隧道施工修建中其主要灾害之一就包含了瓦斯灾害,灾害的主要表现体现在瓦斯的爆炸、中毒、窒息以及煤与瓦斯的突出等方面。据以往的资料来看,隧道施工中如果发生了瓦斯事故,其后果通常都是较为严重的,其产生的影响也是极其恶劣的。在瓦斯隧道施工中瓦斯灾害就表现的更为突出,因此在瓦斯隧道施工中人们迫切的认识到要注意防范和采取切实的措施降低由瓦斯导致的灾害的可能,急需一个具有可操作性的瓦斯隧道施工危险性的评估手段和方法,从而准确的全面的了解掌握瓦斯隧道中瓦斯以及瓦斯可能产生的灾害从而保障安全施工。文章以铜陵市长江东路五松隧道为例,在研究了大量的瓦斯隧道及瓦斯隧道灾害的基础上,结合五松隧道的地质调查报告和相关的资料,运用层次分析法以及模糊综合评判对五松瓦斯隧道施工进行危险性评估。文章主要研究以下几个方面内容： (1)对隧道瓦斯灾害特性及其机理做了分析研究。 (2)对隧道内掌子面涌出的瓦斯在隧道内区域浓度及分布规律进行了研究,并结合五松瓦斯隧道利用Fluent做了一个隧道瓦斯区域浓度及分布模拟研究。 (3)分析了隧道施工中每一种灾害发生后可能会产生的影响及其发生的影响因素,在掌握主要影响因素的基础上建立了一个瓦斯隧道施工过程中的危险评估体系,并就五松瓦斯隧道的实际情况做了一个评估,得出了隧道全线有5个施工的较安全施工区段、12个较危险施工区段以及6个施工危险性区段。 (4)针对五松隧道的实际施工情况,在结合评估的基础上提出合理可行安全的危险防治措施。
[Abstract]:One of the main disasters in tunnel construction include the gas disaster disaster, mainly reflected in the gas explosion, poisoning, suffocation and prominent aspects of coal and gas. According to the previous data, in the tunnel construction if the occurrence of gas accidents, the consequences are often more serious, its influence is extremely bad.
In the gas tunnel construction in the gas disaster on the performance of the more prominent, therefore in the gas tunnel construction people urgently realized the importance to take effective measures to prevent and reduce the disasters caused by the gas may need a can evaluate the means and methods of gas tunnel construction risk operation, comprehensive understanding in order to accurately grasp the gas in the gas tunnel and gas potential hazards so as to guarantee the safety of construction.
Taking Tongling Yangtze River Road osong tunnel as an example, based on the study of gas tunnel and tunnel gas disaster on a great deal, with osong tunnel geological survey report and related information, using AHP and fuzzy comprehensive evaluation of osong gas tunnel construction in the risk assessment. This paper mainly studies the following aspects:
(1) the characteristics and mechanism of the tunnel gas disaster are analyzed and studied.
(2) the gas emission of the tunnel face were studied and the concentration distribution in the tunnel area, and combined with osong gas tunnel using Fluent to do a tunnel gas concentration and regional distribution simulation research.
(3) analysis of the factors influencing the effect of each disaster in tunnel construction may produce its occurrence, in the grasp of the main influence factors on the basis of a gas in the process of tunnel construction risk assessment system, and made an assessment on the actual situation of osong gas tunnel, the tunnel all have safer construction section 5 construction, 12 more dangerous construction section and the 6 section of the construction risk.
(4) according to the actual situation of the construction of the tunnel Wu Song, put forward the reasonable and feasible safety risk prevention measures on the basis of the assessment.

【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U455.1

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