本文選題：安康　切入點(diǎn)：定量　出處：《西北大學(xué)》2017年碩士論文

【摘要】：本次安康市工程地質(zhì)分區(qū)研究以筆者參與的安康市地震小區(qū)劃項(xiàng)目為切入點(diǎn),在項(xiàng)目開展過程中,進(jìn)行了針對性的地質(zhì)調(diào)查和資料搜集,并開展了鉆探和剪切波速測試等現(xiàn)場工作,對安康市的區(qū)域構(gòu)造狀況、地貌成因類型、巖土類型及其工程性質(zhì)、水文地質(zhì)條件等進(jìn)行了深入分析。在此基礎(chǔ)上,結(jié)合“區(qū)內(nèi)相似,區(qū)際相異”原則,以地形地貌、地層巖性、填土厚度、巖土體類型和水文地質(zhì)情況等作為主要分區(qū)依據(jù),對安康市進(jìn)行了定性的工程地質(zhì)三級分區(qū)。一級分區(qū)按地貌及其成因形態(tài)進(jìn)行分區(qū),共分為河流沖積平原、臺地、低山;二級分區(qū)按堆積物的成因類型、巖性等進(jìn)行分區(qū),劃分到亞區(qū),洪湖積臺地工程地質(zhì)區(qū)根據(jù)土層結(jié)構(gòu)、巖土體類型及工程性質(zhì)的不同,并結(jié)合形成時間分為三個亞區(qū),即一級臺地、二級臺地、三級臺地;河流沖洪積平原由于各條河流的形成先后順序不同,可按照河流的名稱分別劃分到亞區(qū),即漢江沖洪積平原、黃洋河沖洪積平原、月河沖洪積平原、傅家河沖洪積平原、冉家河沖洪積平原。三級分區(qū)根據(jù)土體結(jié)構(gòu)的相似性,劃分到段,共16個段。在工程地質(zhì)定性分區(qū)基礎(chǔ)上,選取分段相對繁瑣的河流沖積平原區(qū),以河流沖積平原分區(qū)中劃分的12個工程地質(zhì)段為基礎(chǔ),以場地淺部巖土條件和工程地質(zhì)特性的相似性為主要分區(qū)依據(jù),采用數(shù)據(jù)挖掘中的聚類方法和模糊綜合評判方法,對河流沖積平原區(qū)進(jìn)行精細(xì)化的定量分區(qū),分別劃分為抗震有利、抗震良好、抗震一般、抗震不利四個亞區(qū)。對兩種分區(qū)方法所得結(jié)果進(jìn)行對比分析,僅黃洋河三級階地的劃分存在分歧,結(jié)合黃洋河三級階地的淺部巖土條件和工程地質(zhì)特性將分區(qū)結(jié)果進(jìn)行統(tǒng)一,最后將黃洋河三級階地劃分為抗震一般區(qū),完成河流沖積平原的定量分區(qū)。本次工程地質(zhì)分區(qū)研究,在工程地質(zhì)定性分區(qū)的基礎(chǔ)上,對調(diào)查和勘探數(shù)據(jù)進(jìn)行深入挖掘,創(chuàng)新性地完成了河流沖積平原區(qū)的精細(xì)化定量分區(qū),對工程地質(zhì)定性分區(qū)結(jié)果進(jìn)行了良好的完善和補(bǔ)充,采用定性與定量相結(jié)合的方式對安康市2020年規(guī)劃范圍內(nèi)的區(qū)域進(jìn)行科學(xué)合理的工程地質(zhì)分區(qū),為安康市的城市規(guī)劃與建設(shè)提供了有意義的指導(dǎo)。
[Abstract]:In this study of engineering geology zoning of Ankang City, the author participated in the project of seismic microzonation in Ankang City as the starting point. During the process of the project, the geological survey and data collection were carried out. Field work such as drilling and shear wave velocity testing has been carried out, and the regional tectonic conditions, landform genetic types, geotechnical types and their engineering properties, hydrogeological conditions, etc., of Ankang City have been thoroughly analyzed. Combined with the principle of "similarity in the area and difference between regions", the main zoning basis is terrain and geomorphology, stratigraphic lithology, thickness of fill soil, types of rock and soil and hydrogeological conditions, etc. The third grade division of engineering geology in Ankang city was carried out qualitatively. The first division was divided into river alluvial plain, platform and low mountain according to the geomorphology and its genetic form, and the second division was divided according to the genetic type and lithology of the deposit. According to the different soil structure, rock and soil types and engineering properties, the Honghu Lake platform engineering geological area can be divided into three sub-regions according to the formation time, that is, the first stage, the second stage and the third stage. The river alluvial plain can be divided into subareas according to the name of the river, that is, the Hanjiang alluvial plain, the Huangyang river alluvial plain, the lunar river alluvial plain and the Fu Jia river alluvial plain. According to the similarity of soil structure, the third grade zoning is divided into 16 sections, which are divided into 16 sections. On the basis of the qualitative zoning of engineering geology, the river alluvial plain area with relatively tedious segmentation is selected. Based on 12 engineering geological sections divided in river alluvial plain and the similarity of shallow geotechnical conditions and engineering geological characteristics of the site, the clustering method and fuzzy comprehensive evaluation method in data mining are adopted. The river alluvial plain area is divided into four sub-areas of favorable earthquake resistance, good earthquake resistance, general earthquake resistance and unfavorable earthquake resistance. The results obtained by the two zoning methods are compared and analyzed. Only the division of the three terraces of the Huangyang River is divided into different areas. Combined with the shallow geotechnical conditions and the engineering geological characteristics of the third terrace of the Yellow River, the zoning results are unified. Finally, the third terrace of the Yellow River is divided into general seismic areas. On the basis of the qualitative zoning of engineering geology, the investigation and exploration data are deeply excavated, and the fine and quantitative division of river alluvial plain area is innovatively completed. The qualitative zoning results of engineering geology are well improved and supplemented, and the scientific and reasonable engineering geological zoning is carried out in the planning scope of Ankang City in 2020 by combining qualitative and quantitative methods. It provides meaningful guidance for urban planning and construction of Ankang City.
【學(xué)位授予單位】：西北大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：P642

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