CAJ | 학술논문

“4·20”芦山地震不仅造成了巨大的人员伤亡和财产损失，还诱发了大量的崩塌、滑坡等次生地质灾害。本文在对芦山地震重灾区自然地质环境条件分析的基础上，对芦山地震诱发次生地质灾害的分布发育规律、类型和特征及震后演化趋势等进行了详细的分析和总结。芦山地震新诱发次生地质灾害1337处，主要次生灾害类型为崩塌、滑坡和不稳定斜坡，灾害规模以中小型为主，新增的次生地质灾害主要发育于白垩系、三叠系砂泥岩、二叠系碳酸盐岩地层、第三系砾岩半成岩地层的陡坡和陡崖上以及全强风化壳和第四系堆积物中，并沿龙门山南段断裂带（中林-双石断裂）以及宝兴河、芦山河、灵关河等河谷和沟道两侧以及公路内侧山坡的陡坡地段集中分布。芦山地震不仅诱发了数以千计的次生地质灾害，还形成了许多潜在的、隐蔽性强的地质灾害，地震灾区的次生地质灾害总体会呈现加剧发展的趋势。
“4·20”호산지진불부조성료거대적인원상망화재산손실，환유발료대량적붕탑、활파등차생지질재해。본문재대호산지진중재구자연지질배경조건분석적기출상，대호산지진유발차생지질재해적분포발육규률、류형화특정급진후연화추세등진행료상세적분석화총결。호산지진신유발차생지질재해1337처，주요차생재해류형위붕탑、활파화불은정사파，재해규모이중소형위주，신증적차생지질재해주요발육우백성계、삼첩계사니암、이첩계탄산염암지층、제삼계력암반성암지층적두파화두애상이급전강풍화각화제사계퇴적물중，병연룡문산남단단렬대（중림-쌍석단렬）이급보흥하、호산하、령관하등하곡화구도량측이급공로내측산파적두파지단집중분포。호산지진불부유발료수이천계적차생지질재해，환형성료허다잠재적、은폐성강적지질재해，지진재구적차생지질재해총체회정현가극발전적추세。
Lushan earthquake not only caused heavy property loss and personal injuries,but also induced many geological hazards such as avalanches and landslides.This paper is based on the analysis of geological environment condition of the earthquake-stricken area.It deeply analyzes the distribution law,types and characteristics and development tendency of the geological hazards.The earthquake induced 1337geological hazards which mainly include moderate - small scale avalanches,landslides and unstable slopes.The hazards are mainly developed in sandstone and mudstone of the Cretaceous and Triassic system,carbonatite of the Permian system,conglomerate of the Tertiary system and weathered crust and debris of the Quaternary system.They are densely distributed on steep slopes of both sides of the Longmen southern fault (Zhonglin-Shuangshi fault)and Baoxing,Linguan and Lushan river and on the inside slopes of some roads.The earthquake not only induced many geo-hazards,but also caused many potential and hidden geo-hazards.So,the geo-hazards in the disaster area will appear with an increasing trend in the future.This study can provide a reference for disaster prevention and mitigation in the post-earthquake reconstruction.