本文選題：崩塌 + 地質(zhì)環(huán)境　； 參考：《水土保持研究》2017年03期

【摘要】：在分析燕子河流域地質(zhì)災(zāi)害形成的地質(zhì)環(huán)境背景及誘發(fā)因素的基礎(chǔ)上,對燕子河流域崩塌地質(zhì)災(zāi)害的類型、發(fā)育特征進(jìn)行了分析,總結(jié)了流域內(nèi)3種主要的崩塌地質(zhì)災(zāi)害破壞模式及演化過程,并選取典型崩塌進(jìn)行了穩(wěn)定性研究。結(jié)果表明:燕子河流域崩塌地質(zhì)災(zāi)害以巖質(zhì)、小型、復(fù)合式、中低位、不穩(wěn)定崩塌為主;崩塌在空間上主要分布在燕子河干流、主要支流河谷斜坡地帶及康縣—陽壩公路沿線人類工程活動(dòng)密集的"一路一帶"上,時(shí)間上主要集中于降雨較為集中的7—9月;崩塌的破壞模式主要有碎裂—墜落式、彎折—傾倒—滑移式、碎裂—滑移式,每種破壞模式經(jīng)歷4個(gè)階段演化后形成災(zāi)害;典型崩塌穩(wěn)定性計(jì)算得出暴雨是崩塌發(fā)生的主導(dǎo)誘發(fā)因素。
[Abstract]:Based on the analysis of geological environment background and induced factors of geological disasters in Yanzi River Basin, the types and developmental characteristics of geological disasters in Yanzi River Basin are analyzed. In this paper, three main failure modes and evolution processes of collapse geological hazards in the basin are summarized, and the stability of typical collapses is studied. The results show that the geological hazards of collapse in Yanzi River basin are mainly rock mass, small scale, compound type, medium low level and unstable collapse, and the collapse is mainly distributed in the main stream of Yanzi River in space. The main tributaries, river valley slopes and "Belt and Road", where human engineering activities are concentrated along the Kangxi-Yangba Highway, are mainly concentrated in July and September when the rainfall is relatively concentrated, and the failure mode of the collapse is mainly cataclysm-fall. Bending-toppling-slip, fragmentation-slip, and each failure mode evolved into a disaster after four stages, and the calculation of typical collapse stability showed that rainstorm was the leading inducing factor of collapse.
【作者單位】： 東華理工大學(xué);中國地質(zhì)調(diào)查局水文地質(zhì)環(huán)境地質(zhì)調(diào)查中心;
【基金】：國家自然科學(xué)基金“降雨型高速遠(yuǎn)程滑體失穩(wěn)機(jī)理與破壞過程研究”(41372332) 中國地質(zhì)調(diào)查局地質(zhì)調(diào)查項(xiàng)目“嘉陵江上游燕子流域地質(zhì)災(zāi)害調(diào)查”(12120115045501)
【分類號(hào)】：P642.21

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