【摘要】：以火洛村古滑坡為研究對(duì)象,調(diào)查研究區(qū)地質(zhì)構(gòu)造和地形環(huán)境條件,查明滑坡山體的破壞現(xiàn)象和巖體結(jié)構(gòu),分析滑坡發(fā)育特征,建立山體地質(zhì)結(jié)構(gòu)模型,采用數(shù)值計(jì)算反演滑坡山體破壞的成因,探討潰屈的誘導(dǎo)因素及臨界動(dòng)力強(qiáng)度。結(jié)論如下:滑坡于晚更新世中晚期形成,具有潰散性高速遠(yuǎn)程碎屑流的特點(diǎn);斜坡底部軟弱帶及陡傾節(jié)理控制山體結(jié)構(gòu)及滑坡發(fā)育特征,其對(duì)地震動(dòng)力的響應(yīng)顯著;潰屈臨界地震加速度為0.3 g。
[Abstract]:Taking Huoluomungu landslide as the research object, the geological structure and topographic environmental conditions of the study area are investigated, the failure phenomenon and rock mass structure of the landslide are found out, the development characteristics of the landslide are analyzed, and the geological structure model of the mountain body is established. The causes of landslide failure are inversed by numerical calculation, and the induced factors and critical dynamic strength of buckling are discussed. The conclusions are as follows: the landslide formed in the middle and late Pleistocene and has the characteristics of collapsing high speed and long distance clastic flow, the weak zone at the bottom of the slope and the steep dip joint control the structure of the mountain body and the characteristics of the landslide development, and its response to the seismic dynamics is remarkable. The critical seismic acceleration of buckling is 0.3 g.
【作者單位】： 成都理工大學(xué)環(huán)境與土木工程學(xué)院;成都理工大學(xué)地質(zhì)災(zāi)害防治與地質(zhì)環(huán)境保護(hù)國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金面上項(xiàng)目(41072231) 地質(zhì)災(zāi)害防治與地質(zhì)環(huán)境保護(hù)國(guó)家重點(diǎn)實(shí)驗(yàn)室方向性項(xiàng)目(40100-00002219)資助
【分類號(hào)】：P642.22

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本文編號(hào)：2143627