莱州湾南岸海岸带地质环境评价

发布时间：2018-02-11 13:38

本文关键词： 地质环境评价模糊综合评价层次分析法海岸带工程地质分区　出处：《吉林大学》2015年硕士论文　论文类型：学位论文

【摘要】：海岸带是人类生活和生产的重要场所。莱州湾属于渤海三个海湾之一，是十分重要的渔业产区。莱州湾南岸的海洋渔业、盐业化工等主要产业优势明显，在山东省海洋经济中占有重要的地位。随着人类不断开发产生的环境问题等日益突出，如何既能科学合理的利用土地资源，又能不导致地质环境恶化，是迫在眉睫的问题。因此，开展莱州湾南岸海岸带地质环境评价是必要的。本文以莱州湾南岸海岸带为例，在系统整理莱州湾南岸已有的地质环境资料基础上，对局部空白区进行地质环境资料的补充调查和监测。在综合分析10多个勘察报告、600多个钻口资料和6个地质调查报告基础上，通过野外实地考察，研究本区海域液化土、软土分布、物理力学性质等，根据地质构造、地貌类型、沉积环境和海域浅层土的物理力学性质等特征将海域分成7个工程地质亚区。在现有地质环境资料的基础上，将地质环境要素与功能类型关系赋值，用数理统计软件将用地类型进行定量聚类，，可归并为8类，包括临海工业城镇建设用地、海岸带生态绿化用地、海岸带农业用地、海水资源用地、围海造陆用地、港口航运区用地、渔业养殖用地、海洋能源用地等，从中选前5个类型进行评价。根据我国海岸带特性，将陆域和海域影响因子综合考虑，构建一套基于开发莱州湾南岸的海岸带地质环境评价因子，包括地壳稳定性、地形地貌、水文地质、工程地质、环境质量、地质灾害、人类活动等。根据不同功能用地影响因子不同选用相应的因子进行地质环境评价。通过层次分析法可确定相应功能用地的评价因子权重，在地质数据全部转换成ArcGIS格式基础上，基于ArcGIS软件平台通过模糊综合评价模型对海岸带地质环境的现状进行科学、系统的评价，为莱州湾南岸的合理开发规划提供一定的依据，具有重要的实际意义。
[Abstract]:The coastal zone is an important place for human life and production. Laizhou Bay belongs to one of the three coves in the Bohai Sea and is a very important fishery producing area. The main industries such as marine fishery, salt industry and chemical industry on the south coast of Laizhou Bay have obvious advantages. It plays an important role in the marine economy of Shandong Province. With the increasingly prominent environmental problems arising from the continuous development of human beings, how to make scientific and rational use of land resources without causing the deterioration of the geological environment, Therefore, it is necessary to evaluate the geological environment of the coastal zone along the south coast of Laizhou Bay. Taking the coastal zone of the southern coast of Laizhou Bay as an example, the geological environment data of the south coast of Laizhou Bay have been systematically sorted out in this paper. Supplementary investigation and monitoring of geological environment data in local blank areas. On the basis of comprehensive analysis of more than 600 drilling port data and 6 geological survey reports of more than 10 survey reports, the liquefied soil in the sea area of this area is studied through field investigation. According to the characteristics of geological structure, geomorphologic type, sedimentary environment and physical and mechanical properties of shallow soil, the sea area is divided into seven engineering geological subareas. On the basis of the existing geological environment data, the relationship between geological environment elements and function types is assigned, and the land types are quantitatively clustered by mathematical statistics software, which can be merged into 8 categories, including construction land for industrial cities and towns near the sea. Land for ecological greening in the coastal zone, agricultural land for the coastal zone, land for sea water resources, land for land reclamation, land for port and shipping areas, land for fishery cultivation, land for marine energy, etc. According to the characteristics of China's coastal zone, a set of geological and environmental evaluation factors of coastal zone, including crustal stability, topography and geomorphology, are constructed based on the comprehensive consideration of land and sea area influence factors, which are based on the development of the southern coast of Laizhou Bay. Hydrogeology, engineering geology, environmental quality, geological hazards, human activities, etc. According to the influence factors of different functional land use, the corresponding factors are selected to evaluate the geological environment. The weight of the evaluation factors of the corresponding functional land can be determined by AHP, and the geological data are converted to ArcGIS format. Based on the ArcGIS software platform, the scientific and systematic evaluation of the present situation of the coastal geological environment is carried out through the fuzzy comprehensive evaluation model, which provides a certain basis for the rational development planning of the southern coast of Laizhou Bay, and has important practical significance.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X141

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