本文選題：地質(zhì)災(zāi)害危險(xiǎn)性分區(qū)　切入點(diǎn)：影響因子體系　出處：《長安大學(xué)》2015年碩士論文

【摘要】：地質(zhì)災(zāi)害每年在全球范圍內(nèi)大量發(fā)生,對人類的生活產(chǎn)生巨大的影響。地質(zhì)災(zāi)害危險(xiǎn)性區(qū)劃及分析的研究,對政府相關(guān)部門的地質(zhì)災(zāi)害防治工作的部署有關(guān)鍵的依據(jù)作用。世界范圍內(nèi)對于危險(xiǎn)性分區(qū)的研究始于二十世紀(jì)五十年代,在相關(guān)領(lǐng)域已經(jīng)取得了一些研究成果。此類研究多集中于如滑坡、崩塌等的單體災(zāi)害的風(fēng)險(xiǎn)性研究,對于大范圍的,多災(zāi)種的研究尚處于發(fā)展階段。區(qū)域地質(zhì)災(zāi)害的危險(xiǎn)性分析研究,將不僅僅幫助該區(qū)域的地質(zhì)災(zāi)害的防治工作,在不斷結(jié)合相關(guān)領(lǐng)域發(fā)展的基礎(chǔ)上,終會(huì)將地質(zhì)災(zāi)害調(diào)查及危險(xiǎn)性分析工作變得節(jié)能而高效。本文以綏德縣的地質(zhì)災(zāi)害詳細(xì)調(diào)查項(xiàng)目為背景,結(jié)合相關(guān)領(lǐng)域的現(xiàn)有研究成果,根據(jù)綏德縣的地質(zhì)環(huán)境條件,選取了綏德縣的地質(zhì)災(zāi)害危險(xiǎn)性影響因子體系�；贏rcGIS平臺,進(jìn)行因子的量化提取以及歸一化處理,而后編錄入SPSS平臺,進(jìn)行邏輯回歸分析。得到相關(guān)的邏輯回歸系數(shù),而后得到各因子對于地質(zhì)災(zāi)害危險(xiǎn)性分析的權(quán)重。在ArcGIS平臺中,結(jié)合各因子歸一化圖與邏輯回歸分析得到的權(quán)重,可以得到區(qū)域地質(zhì)災(zāi)害發(fā)生概率圖。在此基礎(chǔ)上,結(jié)合ArcGIS中水文分析模塊的斜坡單元?jiǎng)澐址椒?重置危險(xiǎn)性分析的單元,并進(jìn)行地質(zhì)災(zāi)害的危險(xiǎn)性區(qū)劃和分析,進(jìn)而得到綏德縣的地質(zhì)災(zāi)害危險(xiǎn)性分區(qū)圖。將全縣分為四個(gè)危險(xiǎn)性等級區(qū):不危險(xiǎn)區(qū)、低危險(xiǎn)區(qū)、中危險(xiǎn)區(qū)、高危險(xiǎn)區(qū),其面積分別為413km2、771.9km2、473km2、217.8km2。所得危險(xiǎn)性情況基本吻合該縣實(shí)際情況,驗(yàn)證了邏輯回歸法在地質(zhì)災(zāi)害危險(xiǎn)性分區(qū)領(lǐng)域的應(yīng)用性。
[Abstract]:Geological hazards occur in large numbers in the world every year, which have a great impact on human life.The study of geological hazard risk regionalization and analysis plays a key role in the arrangement of geological hazard prevention and control work in relevant government departments.Worldwide research on hazard zoning began in the 1950s, and has made some achievements in related fields.Most of these studies focus on the risk of single disasters, such as landslides and collapses, but the study of large-scale and multi-disaster is still in the stage of development.The risk analysis and study of regional geological hazards will not only help the prevention and control of geological hazards in this region, but also will make the investigation and risk analysis of geological hazards energy efficient and efficient on the basis of the continuous development of related fields.Based on the detailed investigation project of geological hazards in Suide County and the existing research results in relevant fields, according to the geological environment conditions of Suide County, the paper selects the risk factors system of geological hazards in Suide County.Based on the ArcGIS platform, the factors are extracted and normalized, and then compiled into the SPSS platform for logical regression analysis.The relevant logical regression coefficients are obtained, and then the weight of each factor for geological hazard risk analysis is obtained.In the ArcGIS platform, the probability map of regional geological hazards can be obtained by combining the weights obtained from the normalized map of each factor and the logical regression analysis.On this basis, combining with the slope unit division method of hydrologic analysis module in ArcGIS, resetting the risk analysis unit, and carrying out the risk zoning and analysis of geological hazards, the geological hazard zoning map of Suide County is obtained.The county is divided into four dangerous areas: no danger area, low risk area, middle risk area and high risk area, whose area is 413km2771.9km2473km2217.8 km2, respectively413km2771.9km2473km2217.8 km2.The results are in good agreement with the actual situation of the county and verify the application of the logical regression method in the field of geological hazard risk zoning.
【學(xué)位授予單位】：長安大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P694;P208

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