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岩溶隧道施工中地下水环境负效应评价指标体系研究

Study on Groundwater Environmental Negative Effects Evaluation Index System in Karst Tunnel Excavating

【作者】 刘向远

【导师】 刘丹;

【作者基本信息】 西南交通大学 , 环境工程, 2007, 硕士

【摘要】 本论文以岩溶隧道施工中地下水环境为研究对象,通过资料调研和对典型岩溶山区现场调查踏勘,探讨了岩溶隧道施工中地下水环境负效应的概念及形成机理,并在此基础上构建了岩溶隧道施工中地下水环境负效应的评价系统。文中建立了评价模型,并对其评价指标的筛选、指标权重的确定以及指标隶属函数的构建等进行了研究和探索,所取得成果有助于指导隧道设计施工和减少岩溶隧道施工中地下水环境负效应,为修建岩溶山岭隧道地区水资源可持续发展和隧道动态设计提供科学依据,从而实现隧道施工中环境质量全过程控制。文章综合考虑自然地理、地质、水文地质以及隧道工程等相关因素,通过对指标体系结构及其构建原则、作用和方法的总结分析,建立了适用于岩溶隧道施工中地下水环境负效应评价的指标体系。应用模糊数学中建立隶属函数的理论和方法构建地下水环境负效应评价指标隶属函数,通过隶属函数对各评价指标进行量化。并聘请土木工程、水文地质及环境工程等领域的专家应用层次分析法确定了评价指标体系中各指标的权重值。以国道沪蓉高速公路垫(江)——邻(水)支线铜锣山隧道为例,应用岩溶隧道施工中地下水环境负效应的评价系统评价了该隧道施工中地下水环境负效应,结果表明该隧道施工期间地下水环境负效应综合评价指数最大值为0.343,负效应程度属于中等(Ⅲ),与现场实际情况相符。

【Abstract】 This paper taking groundwater environment of tunnel under excavating in krast region as study object, benefit from files research and field investigation,the author makes an effort in how to define groundwater environmental negative effects connected with tunnel excavating in karst area. The author designed the groundwater environmental negative effects assessment system. then studied selecting indexes, evaluating weight and constructing functions. The research results instructional and helpful to designer and constructer in minishing groundwater environmental negative effects, the reasearch offers directions for the dynamic design and construct tunnels in karst region,and it is instructive for Sustainable development in the region,after that the environmental quality entire process control can be come true.Physical geography and geology and hydrology geology and tunnel characteristic factors are considered comprehensively in this study,researched target system structure and its constructing principle,the function and the method,followed the principles of indexes selecting,groundwater environmental negative effects evaluation index system in karst tunnel excavating is established. The index system can be used in the assessment of groundwater environmental negative effect due to tunnel building in kasrt mountainous area. Applies the fuzzy mathematics knowledge establish membership function of the ground water environment negative effects indexes,and figure out indexes value by membership function. Obtain weight of the indexes by Analytical Hierarchy Process (AHP) with the help of authority in the domain of civil engineering and geology and hydrology geology and environmental engineering. Based upon the study above, the author synthetically appraises the Tongluoshan tunnel located in highway from Shanghai to Chengdu with fuzzy comprehensive evaluation method,evaluation results showed that the maximal index value is 0.343,which means the groundwater negative effects attribute to middle degree(III),accord with the facts of the eara.

  • 【分类号】U455.49
  • 【被引频次】17
  • 【下载频次】425
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