煙臺(tái)市城市地質(zhì)環(huán)境質(zhì)量評(píng)價(jià)研究
發(fā)布時(shí)間:2018-01-23 12:05
本文關(guān)鍵詞: 綜合評(píng)價(jià) 地質(zhì)環(huán)境 適宜性評(píng)價(jià) 煙臺(tái)市 出處:《中國(guó)地質(zhì)大學(xué)(北京)》2017年碩士論文 論文類型:學(xué)位論文
【摘要】:影響城市建設(shè)及其穩(wěn)定發(fā)展的各類地質(zhì)要素稱之為城市地質(zhì)環(huán)境,城市的規(guī)劃、建設(shè)和發(fā)展都依靠于地質(zhì)環(huán)境質(zhì)量的服務(wù)。隨著煙臺(tái)市城市化和工業(yè)化進(jìn)程的推進(jìn),經(jīng)濟(jì)社會(huì)發(fā)展對(duì)自然資源(土地、地下空間、地下水資源等)的開(kāi)發(fā)利用強(qiáng)度和對(duì)地質(zhì)環(huán)境的改造影響不斷增大,煙臺(tái)市也面臨著一系列地質(zhì)環(huán)境問(wèn)題。本次對(duì)研究區(qū)進(jìn)行水工環(huán)綜合地質(zhì)調(diào)查、環(huán)境地質(zhì)遙感解譯、鉆探、抽水試驗(yàn)、巖土測(cè)試與水質(zhì)分析等工作,查明了研究區(qū)內(nèi)各條件,并選取不同的評(píng)價(jià)因子,采用層次分析法和模糊數(shù)學(xué)綜合評(píng)判法以及定性分析等方法對(duì)煙臺(tái)市地下水環(huán)境質(zhì)量、城市地下空間開(kāi)發(fā)利用和城市建設(shè)地質(zhì)環(huán)境適宜性等進(jìn)行了綜合評(píng)價(jià),結(jié)果表明:(1)煙臺(tái)市地區(qū)地下水質(zhì)量共劃分為較好、較差和極差三個(gè)區(qū),總體趨勢(shì)是內(nèi)陸好于沿海地帶,工業(yè)密集區(qū)上游好于下游地區(qū),丘陵地區(qū)好于第四系分布區(qū)。(2)根據(jù)環(huán)境類型分類地下水腐蝕性屬于Ⅲ類。(3)研究區(qū)內(nèi)揮發(fā)性酚、氰化物以及重金屬中的鐵、汞、Cr~(6+)、銅、鋅、砷、鎘單指標(biāo)因子未超過(guò)地下水背景值,均未受到其污染;Cl~-和SO_4~(2-)整體上屬于未污染-較輕污染區(qū),局部地段由于海水入侵導(dǎo)致中度-極重度污染;而三氮在研究區(qū)大部分地區(qū)均未收到污染,在個(gè)別地區(qū)有一定污染。(4)結(jié)合pH值、礦化度、全硬度、CODMno、Mn~(2+)和Pb等指標(biāo)進(jìn)行綜合評(píng)價(jià),研究區(qū)內(nèi)的基巖區(qū)為主要的未污染區(qū),占區(qū)內(nèi)總面積的20.5%;大部分地區(qū)為輕度污染區(qū),占58.7%;中度-極重度污染區(qū)呈環(huán)狀分布,占20.8%。(5)地下空間開(kāi)發(fā)利用地質(zhì)環(huán)境分為四個(gè)區(qū);(6)綜合評(píng)價(jià)了煙臺(tái)市城市建設(shè)地質(zhì)環(huán)境適宜性,劃分為五個(gè)分區(qū)。
[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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