發(fā)布時(shí)間：2018-05-13 01:18

  本文選題：泥石流 + 影響因子��； 參考：《中國(guó)地質(zhì)大學(xué)(北京)》2017年碩士論文

【摘要】：本論文通過查閱以前研究學(xué)者的資料以及現(xiàn)場(chǎng)勘查,確定該研究區(qū)的區(qū)域地質(zhì)環(huán)境條件和研究區(qū)主溝泥石流的基本特征,根據(jù)研究區(qū)主溝泥石流的基本特征計(jì)算了該研究區(qū)主溝以及山王廟溝和連三坡溝兩條支溝的泥石流基本特征值,主要包括:泥石流流體重度、泥石流峰值流量、泥石流一次最大沖出量等,其次,作者基于層次-主成分分析法計(jì)算研究區(qū)主溝泥石流評(píng)價(jià)因子的權(quán)重值和綜合權(quán)重值,首先確定該研究區(qū)主溝泥石流的影響因子,構(gòu)建層次結(jié)構(gòu)模型,然后再構(gòu)建判斷矩陣,并運(yùn)用MATLAB計(jì)算判斷矩陣的最大特征值及其對(duì)應(yīng)的特征向量,最后計(jì)算出各個(gè)影響因子的權(quán)重值以及綜合權(quán)重值。得出了該研究區(qū)泥石流主要影響因子的權(quán)重值按從大到下的順序依次為:相對(duì)高差降雨山坡坡高主要河流地表徑流地貌類型地震烈度不合理的削坡工程地質(zhì)巖性建筑擠占河道距斷裂帶距離坡地農(nóng)業(yè)耕種。這將為該研究區(qū)泥石流的預(yù)防和治理提供了很重要的思路和方向。另外,根據(jù)研究區(qū)主溝泥石流的基本特征,泥石流類型,爆發(fā)的頻率等應(yīng)用評(píng)估模型對(duì)研究區(qū)主溝泥石流進(jìn)行危險(xiǎn)評(píng)價(jià),得出該研究區(qū)屬于泥石流易發(fā)區(qū),研究區(qū)的受災(zāi)體是比較危險(xiǎn)的,泥石流造成地質(zhì)災(zāi)害損失的概率非常大,而且治理非常緊迫。最后還應(yīng)用FLAC3D模型在暴雨條件下對(duì)研究區(qū)主溝泥石流進(jìn)行數(shù)值模擬分析,得到最危險(xiǎn)的地方為坡腳位置,最大位移約為5.6×102m,存在很大的危險(xiǎn),有極大的滑移的可能性�；泼嬉步茷閳A弧形,倘若在研究區(qū)域內(nèi)真有暴雨,這里有很大可能會(huì)爆發(fā)泥石流。因此,我們對(duì)于該研究區(qū)主溝泥石流的產(chǎn)生要引起高度的重視,必須盡快治理,以保護(hù)當(dāng)?shù)鼐用竦纳踩?避免財(cái)產(chǎn)上的損失。
[Abstract]:In this paper, the regional geological environment conditions and the basic characteristics of the main gully debris flow in the study area are determined by referring to the previous research scholars' data and site survey. According to the basic characteristics of debris flow in the main gully of the study area, the basic characteristic values of the debris flow in the main ditch in the study area and the two branch ditches in Shanwangmiaogou and Lianshanpo gully are calculated, which mainly include: the debris flow is heavy, and the peak flow of debris flow. Secondly, based on the hierarchical principal component analysis method, the author calculates the weight value and the comprehensive weight value of the evaluation factors of the main gully debris flow in the study area, and determines the influence factors of the main gully debris flow in the study area. The hierarchical structure model is constructed, then the judgment matrix is constructed, and the maximum eigenvalue of the judgment matrix and its corresponding eigenvector are calculated by using MATLAB. Finally, the weight values of each influence factor and the comprehensive weight value are calculated. It is concluded that the weight value of the main influencing factors of debris flow in this study area is in order from large to low: relative height difference rainfall slope height main river surface runoff geomorphology type of seismic intensity unreasonable clipping engineering geological lithology The construction occupies the river channel distance from the fault zone to the sloping land agricultural cultivation. This will provide a very important idea and direction for the prevention and control of debris flow in this research area. In addition, according to the basic characteristics of main gully debris flow in the study area, debris flow types, frequency of debris flow and so on, the risk assessment of the main ditch debris flow in the study area is carried out, and it is concluded that the study area belongs to the debris flow prone area. The disaster body in the study area is dangerous, the probability of geological disaster loss caused by debris flow is very large, and the control is very urgent. Finally, the FLAC3D model is used to simulate the debris flow of the main gully in the study area. The most dangerous place is the position of the slope foot, the maximum displacement is about 5.6 脳 10 ~ 2 m, there is a great danger and the possibility of slip is very great. The slip surface is similar to a circular arc, if there is a real rainstorm in the study area, debris flow is likely to erupt here. Therefore, we should attach great importance to the occurrence of debris flow in the main ditch in the study area, and we must treat it as soon as possible in order to protect the life safety of local residents and avoid the loss of property.
【學(xué)位授予單位】：中國(guó)地質(zhì)大學(xué)(北京)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：P642.23

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 楊敏;王運(yùn)生;胡偉;曹水合;赫子皓;楊栓成;;牛塘溝泥石流發(fā)育特征及危險(xiǎn)性評(píng)價(jià)[J];科學(xué)技術(shù)與工程;2016年33期

2 張具琴;李少達(dá);楊武年;楊容浩;;基于3S技術(shù)的泥石流影響因子權(quán)重分析[J];地理空間信息;2016年03期

3 王家柱;任光明;余天斌;高波;;四川蘆山震區(qū)大葉龍溝泥石流發(fā)育特征及危險(xiǎn)度評(píng)價(jià)[J];中國(guó)地質(zhì)災(zāi)害與防治學(xué)報(bào);2015年04期

4 鐘東;余業(yè);劉民生;郭志勇;溫清茂;張豐述;任安菊;;小流域地質(zhì)災(zāi)害綜合防治的典型案例----以汶川縣水磨鎮(zhèn)牛塘溝泥石流為例[J];四川地質(zhì)學(xué)報(bào);2015年03期

5 黨宏社;解琛;王黎;;基于層次—主成分分析法的泥石流危險(xiǎn)度評(píng)價(jià)[J];數(shù)學(xué)的實(shí)踐與認(rèn)識(shí);2015年07期

6 溫智虹;萬魯河;盛儉;;長(zhǎng)白山火山泥石流分布影響因子權(quán)重分析[J];災(zāi)害學(xué);2012年01期

7 黎小東;楊武年;羅智勇;李紅霞;敖天其;;基于RS和GIS的震后汶川縣移民選址方法[J];四川大學(xué)學(xué)報(bào)(工程科學(xué)版);2010年05期

8 余斌;;稀性泥石流容重計(jì)算的改進(jìn)方法[J];山地學(xué)報(bào);2009年01期

9 袁一凡;;四川汶川8.0級(jí)地震損失評(píng)估[J];地震工程與工程振動(dòng);2008年05期

10 劉洪江;唐川;;東川城區(qū)泥石流數(shù)字減災(zāi)系統(tǒng)的開發(fā)[J];自然災(zāi)害學(xué)報(bào);2007年03期

相關(guān)博士學(xué)位論文 前5條

1 林向東;汶川地震以來龍門山斷裂帶地震矩張量時(shí)空演化特征[D];中國(guó)地震局地球物理研究所;2014年

2 成良霞;“5.12”汶川地震后映臥公路邊坡崩塌災(zāi)害形成機(jī)理與危險(xiǎn)性評(píng)估研究[D];長(zhǎng)安大學(xué);2014年

3 甘建軍;汶川地震區(qū)大型堆積體變形破壞模式及穩(wěn)定性研究[D];成都理工大學(xué);2014年

4 牛岑岑;泥石流危險(xiǎn)度評(píng)價(jià)指標(biāo)的提取與等級(jí)劃分[D];吉林大學(xué);2013年

5 郭曉云;汶川地震反應(yīng)譜研究[D];中國(guó)地震局工程力學(xué)研究所;2011年

相關(guān)碩士學(xué)位論文 前10條

1 李宏福;泥石流監(jiān)測(cè)預(yù)警系統(tǒng)研究[D];吉林大學(xué);2015年

2 劉R，

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