瓦斯隧道穿越构造煤层施工风险的模糊层次评价  

Risk assessment of gas tunnel excavating through the tectonic coal seam based on FAHP method

作　　者：云峰 黄飞[2,3] 安俊杰 黄小亮 张培浩 柳盼盼 刘勇 YUN Feng;HUANG Fei;AN Junjie;HUANG Xiaoliang;ZHANG Peihao;LIU Panpan;LIU Yong(CCCC-SHEC Meng Xing Engineering Co.,Ltd.,Xi'an 710119,China;The SAWS Laboratory of Prevention and Controlling the Roof,Coal and Gas Outburst in Coal Mine of South China,Hunan University of Science and Technology,Xiangtan 411201,Hunan,China;State Key Laboratory Cultivation Base for Gas Geology and Gas Control,Henan Polytechnic University,Jiaozuo 454003,Henan,China)

机构地区：[1]中交二公局萌兴工程有限公司,西安710119 [2]湖南科技大学南方煤矿顶板及煤与瓦斯突出灾害预防控制应急管理部重点实验室,湖南湘潭411201 [3]河南理工大学河南省瓦斯地质与瓦斯治理重点实验室——省部共建国家重点实验室培育基地,河南焦作454003

出　　处：《安全与环境学报》2023年第10期3447-3454,共8页Journal of Safety and Environment

基　　金：国家自然科学基金面上项目(52274198);湖南省自然科学基金面上项目(2022JJ30252);河南省瓦斯地质与瓦斯治理重点实验室——省部共建国家重点实验室培育基地开放基金项目(WS2021A02)。

摘　　要：为了科学评价瓦斯隧道穿越构造煤层施工的风险程度,从而为瓦斯隧道的施工安全与成本控制提供决策判据,以某在建公路瓦斯隧道为工程依托开展了风险评价研究。首先,根据隧道的地质特征与施工情况进行了风险因素辨识,构建了瓦斯隧道穿越构造煤层施工的安全评价体系;其次,采用层次分析法构造判断矩阵并通过专家打分的方法对安全评价体系中的各级指标进行权重赋值;最后,采用三级模糊综合评价法进行了风险定量计算。结果表明:瓦斯隧道穿越构造煤层施工过程中潜在9种固有风险因素和11种施工风险因素;施工因素对瓦斯隧道施工风险的影响权重为0.7632,而固有因素的影响权重为0.2368;三级模糊综合评价的计算结果显示该依托工程进行揭煤施工时发生事故的风险概率为61,对应为一般风险。评价结果成功应用于依托工程安全快速穿越构造煤层施工,表明所构建的安全评价体系与风险评价方法具有可靠性,可为同类型的瓦斯隧道施工风险评价提供佐证。To scientifically obtain the risk level of a gas tunnel excavating through the tectonic coal seam,this paper researched risk assessment of a gas tunnel excavating through the tectonic coal seam based on a gas tunnel under construction.Thus the research results can provide some decisions on the construction safety as well as cost control of gas tunnels.Firstly,according to the geological characteristics and construction conditions,the safety evaluation system of gas tunnel excavating through the tectonic coal seam was established.Then,the analytical hierarchy process was applied to build up the judgment matrix and the method of expert scoring was used to assign the weights of factors at all levels in the safety evaluation system.Lastly,the method of three-level fuzzy comprehensive evaluations was used to quantitatively calculate the risk level.It indicates that there potentially have 9 types of inherent risk factors and 11 types of construction risk factors during the processes of a gas tunnel excavating through the tectonic coal seam.The influence weight of the construction risk factor on the gas tunnel excavation is about 0.76,while that of the inherent risk factor is approximately 0.24.The calculation results of three-level fuzzy comprehensive evaluations reveal that the risk probability of the supporting project is about 61 percent when it undergoes the process of uncovering the tectonic coal seam.The exact risk probability is corresponding to the general risk.The evaluation results of this paper are successfully applied to the supporting gas tunnel safely and fast excavating through the tectonic coal seam.Hence,it can be indicated that the safety evaluation system as well as the risk assessment method applied in this paper is feasible.The research results can be referred to by the gas tunnel of the same type excavating through the tectonic coal seam.

关 键 词：安全工程 瓦斯隧道 构造煤层 模糊层次分析 风险评价 

分 类 号：X947[环境科学与工程—安全科学]