【摘要】 汶川5.12地震不仅造成了特大地震灾害,同时还诱发了大量的次生山地灾害,主要包括崩塌(滚石)、滑坡、堰塞湖和泥石流等。崩塌、滑坡不仅阻塞了救援道路,严重延缓了救援进度。还形成了30多个堰塞湖。地震和滑坡活动还将促进泥石流活动,使震区泥石流进入活跃期,在后期降水作用下形成严重的泥石流灾害。通过初步分析,提出了震区次生山地灾害应急减灾措施和恢复重建中的减灾措施。更多还原

【Abstract】 The earthquake of May 12 in Wenchuan not only caused catastrophic disaster,but also induced lots of secondary mountainous disasters,which includes collapses,landslides,barrier lakes,debris flows and so on.The collapses and landslides posed serious influence on earthquake-stricken areas,which blocked the roads to stricken areas and slowed down the rescue progress.Furthermore,when large-scale landslides blocked the channels of rivers,33 barrier lakes which will be a great threat to the upstream and downstream areas were formed.What’s more,the activities of earthquake and landslides can induce the activity of debris flow and make it into an active period in seismic regions.And it will form severe debris flow disasters under the precipitation.Finally,this article proposes emergency relief measures aiming at secondary mountainous disasters in seismic regions and disaster mitigation measures in restoration and reconstruction.更多还原