烟台市城市地质环境质量评价研究

发布时间：2018-01-23 12:05

  本文关键词： 综合评价 地质环境 适宜性评价 烟台市　出处：《中国地质大学(北京)》2017年硕士论文　论文类型：学位论文

【摘要】：影响城市建设及其稳定发展的各类地质要素称之为城市地质环境,城市的规划、建设和发展都依靠于地质环境质量的服务。随着烟台市城市化和工业化进程的推进,经济社会发展对自然资源(土地、地下空间、地下水资源等)的开发利用强度和对地质环境的改造影响不断增大,烟台市也面临着一系列地质环境问题。本次对研究区进行水工环综合地质调查、环境地质遥感解译、钻探、抽水试验、岩土测试与水质分析等工作,查明了研究区内各条件,并选取不同的评价因子,采用层次分析法和模糊数学综合评判法以及定性分析等方法对烟台市地下水环境质量、城市地下空间开发利用和城市建设地质环境适宜性等进行了综合评价,结果表明:(1)烟台市地区地下水质量共划分为较好、较差和极差三个区,总体趋势是内陆好于沿海地带,工业密集区上游好于下游地区,丘陵地区好于第四系分布区。(2)根据环境类型分类地下水腐蚀性属于Ⅲ类。(3)研究区内挥发性酚、氰化物以及重金属中的铁、汞、Cr~(6+)、铜、锌、砷、镉单指标因子未超过地下水背景值,均未受到其污染;Cl~-和SO_4~(2-)整体上属于未污染-较轻污染区,局部地段由于海水入侵导致中度-极重度污染;而三氮在研究区大部分地区均未收到污染,在个别地区有一定污染。(4)结合pH值、矿化度、全硬度、CODMno、Mn~(2+)和Pb等指标进行综合评价,研究区内的基岩区为主要的未污染区,占区内总面积的20.5%;大部分地区为轻度污染区,占58.7%;中度-极重度污染区呈环状分布,占20.8%。(5)地下空间开发利用地质环境分为四个区;(6)综合评价了烟台市城市建设地质环境适宜性,划分为五个分区。
[Abstract]:All kinds of geological factors that affect urban construction and its stable development are called urban geological environment and urban planning. The construction and development depend on the service of geological environment quality. With the development of urbanization and industrialization in Yantai, the economic and social development of natural resources (land, underground space). The intensity of exploitation and utilization and the influence on geological environment are increasing. Yantai is also faced with a series of geological and environmental problems. A comprehensive geological survey of hydraulic engineering and environment is carried out in this study area. Environmental geological remote sensing interpretation, drilling, pumping test, geotechnical testing and water quality analysis work, to identify the conditions in the study area, and select different evaluation factors. The comprehensive evaluation of groundwater environmental quality, exploitation and utilization of urban underground space and suitability of urban construction geological environment in Yantai City were carried out by using analytic hierarchy process, fuzzy mathematics comprehensive evaluation and qualitative analysis. The results show that the groundwater quality in Yantai area is divided into three areas: better, worse and worse. The general trend is that inland is better than coastal zone, and the upstream of industrial concentrated area is better than the downstream area. The groundwater corrosivity in hilly area is better than that in Quaternary distribution area. ~ (2) according to the environmental type, groundwater corrosivity belongs to class 鈪，

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