Insights into some large-scale landslides in southeastern margin of Qinghai-Tibet Plateau

作     者：Bo Zhao Lijun Su Yunsheng Wang Weile Li Lijuan Wang Bo Zhao;Lijun Su;Yunsheng Wang;Weile Li;Lijuan Wang

作者机构：Key Laboratory of Mountain Hazards and Earth Surface ProcessesInstitute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengdu610041China China-Pakistan Joint Research Center on Earth SciencesIslamabadPakistan University of Chinese Academy of SciencesBeijing100049China State Key Laboratory of Geohazard Prevention and Geoenvironment ProtectionChengdu University of TechnologyChengdu610059China Sichuan Academy of Safety Science and TechnologyChengdu610045China Major Hazard Measurement and Control Key Laboratory of Sichuan ProvinceChengdu610045China 

出 版 物：《Journal of Rock Mechanics and Geotechnical Engineering》 (岩石力学与岩土工程学报（英文版）)

年 卷 期：2023年第15卷第8期

页      面：1960-1985页

核心收录：

学科分类：081401[工学-岩土工程] 08[工学] 0814[工学-土木工程] 

基　　金：This study was supported by the Second Tibetan Plateau Scientific Expedition and Research Program(STEP)(Grant No.2021QZKK0202) the China Postdoctoral Science Foundation(Grant No.2021T140650) the National Natural Science Foundation of China(Grant No.42007273).The authors express their gratitude for this financial assistance 

主　　题：Southeastern margin of Qinghai-Tibet Plateau Large landslides Landslide types Landslide triggers Landslide concentration zones 

摘      要：The southeastern margin of Qinghai-Tibet Plateau(SMQTP)is of a typical large landslide-prone area due to intense tectonic activity,deeply incised valleys,high geostress and frequent *** gain insights into large landslides in southeastern margin of Qinghai-Tibet Plateau,an area covering 3.34×105 km2 that extends 80e150 km on both sides of the Sichuan-Tibet traffic corridors(G318)was used to examine the spatial distribution and corresponding characteristics of *** results showed that the study area contains at least 629 large landslides that are mainly concentrated on 7 zones(zones IeVII).Zones IeVII are in the southern section of the Longmenshan fault zone(with no large river)and sections with Dadu River,Jinsha River,Lancang River,Nujiang River and Yarlung Zangbo *** are more landslides in the Jinsha River section(totaling 186 landslides)than the other *** to the updated Varnes classification,408 large landslides(64.9%)were recognized and divided into 4 major types,***(275 cases),slides(58 cases),topples(44 cases)and slope deformations(31 cases).Flows,which consist of rock avalanches and iceerock avalanches,are the most common landslide *** landslide triggers(178 events,28.3%)are also recognized,and earthquakes may be the most common *** to the limited data,these landslide type classifications and landslide triggers are perhaps immature,and further systematic analysis is needed.