基于GIS的白山市江源區(qū)泥石流危險性評價研究
發(fā)布時間：2019-04-18 09:36
【摘要】：白山市江源區(qū)地處吉林省東南部山區(qū)，區(qū)內(nèi)地形、地貌條件較復(fù)雜，地質(zhì)環(huán)境質(zhì)量較差，是吉林省泥石流災(zāi)害較為發(fā)育的地區(qū)。江源區(qū)大部分位于山區(qū)，具備泥石流形成的基本條件，在自然作用和人類工程活動的共同影響下，區(qū)內(nèi)泥石流較發(fā)育，發(fā)生頻率較高，危害也較為嚴重。泥石流災(zāi)害的存在不僅對當(dāng)?shù)厝嗣竦纳敭a(chǎn)安全構(gòu)成威脅，而且限制了當(dāng)?shù)厣鐣?jīng)濟的穩(wěn)步快速發(fā)展。 在充分考慮泥石流形成的內(nèi)動力和外動力條件下，對影響泥石流的各個影響因素進行深入分析，結(jié)合泥石流形成所必須的潛在松散物質(zhì)來源、水動力條件等因素，建立相關(guān)影響因素的泥石流危險性評價體系，將GIS與層次分析法相結(jié)合，對區(qū)內(nèi)泥石流進行危險性評價，通過GIS空間分析能力的體現(xiàn)，發(fā)揮層次分析法可以多要素匯總分析評價的優(yōu)勢，有效的將評價過程中的因素量化，并將影響權(quán)重判別的主觀因素與客觀因素良好的結(jié)合。經(jīng)過詳細的野外調(diào)查、充分收集研究區(qū)的地質(zhì)環(huán)境資料基礎(chǔ)上，分析研究區(qū)的地質(zhì)環(huán)境背景及泥石流發(fā)育特征和形成機制，將地面高程、地貌類型、地層巖性、地質(zhì)構(gòu)造、山坡坡度、年均降雨量、人類工程活動影響及土地利用確定為評價因子；應(yīng)用GIS繪制了各因子的評價分析圖，并利用層次分析法確定了各評價因子的權(quán)重。通過危險性評價模型進行泥石流危險性分區(qū)。選用有效的數(shù)學(xué)方法進行泥石流危險性評價研究，并與傳統(tǒng)的定性化泥石流危險性打分評價進行對比分析。 通過本文的研究將理論分析指導(dǎo)實際應(yīng)用，，可為白山市江源區(qū)泥石流災(zāi)害防治工作提供技術(shù)支持，從而達到為當(dāng)?shù)氐刭|(zhì)災(zāi)害防治部門制定泥石流災(zāi)害防治規(guī)劃及防災(zāi)、減災(zāi)措施起到積極作用。
[Abstract]:Baishan City Jiangyuan District is located in the southeast mountain area of Jilin Province. Its topography, geomorphology and geological environment quality are relatively complex. It is a relatively developed area of debris flow disaster in Jilin Province. Most of Jiangyuan area is located in mountainous area, which has the basic conditions of debris flow formation. Under the joint influence of natural action and human engineering activities, debris flow in the area is more developed, the frequency of debris flow is higher, and the harm is more serious. The existence of debris flow disaster not only threatens the safety of local people's life and property, but also limits the steady and rapid development of local society and economy. Under the condition of considering the internal and external dynamics of debris flow formation, the influence factors of debris flow are analyzed deeply, combined with the factors such as the potential loose material source, hydrodynamic condition and so on, which are necessary for the formation of debris flow. The risk assessment system of debris flow is established, which combines GIS with analytic hierarchy process (AHP) to evaluate the risk of debris flow in the area. Through the embodiment of the spatial analysis ability of GIS, the risk assessment of debris flow in the area is carried out. The analytic hierarchy process (AHP) can make use of the advantages of multi-factor analysis and evaluation, effectively quantize the factors in the evaluation process, and combine the subjective and objective factors that affect the weight discrimination well. After detailed field investigation, on the basis of fully collecting the geological environmental data of the study area, the geological environment background and the characteristics and formation mechanism of debris flow in the study area are analyzed, and the ground elevation, geomorphologic type, stratigraphic lithology, geological structure, and so on, are taken into account. Slope, average annual rainfall, impact of human engineering activities and land use were determined as evaluation factors. The evaluation analysis chart of each factor was drawn by GIS, and the weight of each evaluation factor was determined by analytic hierarchy process (AHP). Risk zoning of debris flow is carried out by risk assessment model. An effective mathematical method is used to evaluate the risk of debris flow, and compared with the traditional qualitative evaluation of debris flow risk. Through the research in this paper, the theoretical analysis will guide the practical application, which can provide technical support for the prevention and control of debris flow disaster in the Jiangyuan district of Baishan City, so as to draw up the debris flow disaster prevention plan and disaster prevention for the local geological disaster prevention and control department. Disaster reduction measures play a positive role.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：P642.23;P208
本文編號：2459942
[Abstract]:Baishan City Jiangyuan District is located in the southeast mountain area of Jilin Province. Its topography, geomorphology and geological environment quality are relatively complex. It is a relatively developed area of debris flow disaster in Jilin Province. Most of Jiangyuan area is located in mountainous area, which has the basic conditions of debris flow formation. Under the joint influence of natural action and human engineering activities, debris flow in the area is more developed, the frequency of debris flow is higher, and the harm is more serious. The existence of debris flow disaster not only threatens the safety of local people's life and property, but also limits the steady and rapid development of local society and economy. Under the condition of considering the internal and external dynamics of debris flow formation, the influence factors of debris flow are analyzed deeply, combined with the factors such as the potential loose material source, hydrodynamic condition and so on, which are necessary for the formation of debris flow. The risk assessment system of debris flow is established, which combines GIS with analytic hierarchy process (AHP) to evaluate the risk of debris flow in the area. Through the embodiment of the spatial analysis ability of GIS, the risk assessment of debris flow in the area is carried out. The analytic hierarchy process (AHP) can make use of the advantages of multi-factor analysis and evaluation, effectively quantize the factors in the evaluation process, and combine the subjective and objective factors that affect the weight discrimination well. After detailed field investigation, on the basis of fully collecting the geological environmental data of the study area, the geological environment background and the characteristics and formation mechanism of debris flow in the study area are analyzed, and the ground elevation, geomorphologic type, stratigraphic lithology, geological structure, and so on, are taken into account. Slope, average annual rainfall, impact of human engineering activities and land use were determined as evaluation factors. The evaluation analysis chart of each factor was drawn by GIS, and the weight of each evaluation factor was determined by analytic hierarchy process (AHP). Risk zoning of debris flow is carried out by risk assessment model. An effective mathematical method is used to evaluate the risk of debris flow, and compared with the traditional qualitative evaluation of debris flow risk. Through the research in this paper, the theoretical analysis will guide the practical application, which can provide technical support for the prevention and control of debris flow disaster in the Jiangyuan district of Baishan City, so as to draw up the debris flow disaster prevention plan and disaster prevention for the local geological disaster prevention and control department. Disaster reduction measures play a positive role.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：P642.23;P208
【參考文獻】
相關(guān)期刊論文 前10條
1 莊樹裕;李廣杰;王鋼城;汪悅;;災(zāi)害熵-可拓綜合評判理論在泥石流危險性評價中的應(yīng)用[J];安徽農(nóng)業(yè)科學(xué);2010年06期
2 許信旺;地理信息系統(tǒng)支持下泥石流災(zāi)害危險度評估研究[J];安慶師范學(xué)院學(xué)報(自然科學(xué)版);1997年01期
3 祁元;劉勇;楊正華;徐tq;方苗;;基于GIS的蘭州滑坡與泥石流災(zāi)害危險性分析[J];冰川凍土;2012年01期
4 王禮先;關(guān)于荒溪分類[J];北京林學(xué)院學(xué)報;1982年03期
5 趙海卿,李廣杰,張哲寰;吉林省東部山區(qū)地質(zhì)災(zāi)害危害性評價[J];吉林大學(xué)學(xué)報(地球科學(xué)版);2004年01期
6 李洪然,李廣杰,秦勝伍;和龍市東城鎮(zhèn)泥石流災(zāi)害趨勢多元分析與危險性評價[J];吉林大學(xué)學(xué)報(地球科學(xué)版);2005年01期
7 孟凡奇;李廣杰;秦勝伍;汪茜;馬建全;;基于證據(jù)權(quán)法的泥石流危險度區(qū)劃[J];吉林大學(xué)學(xué)報(地球科學(xué)版);2010年06期
8 閆滿存,王光謙,劉家宏;GIS支持的瀾滄江下游區(qū)泥石流爆發(fā)危險性評價[J];地理科學(xué);2001年04期
9 唐川,朱大奎;基于GIS技術(shù)的泥石流風(fēng)險評價研究[J];地理科學(xué);2002年03期
10 趙士鵬;基于GIS的山洪災(zāi)情評估方法研究[J];地理學(xué)報;1996年05期
本文編號：2459942
本文鏈接：http://sikaile.net/kejilunwen/dizhicehuilunwen/2459942.html
最近更新
教材專著
