摘要
为探究"6.17"梅龙沟泥石流灾害的形成原因,笔者通过现场调查、室内试验、理论计算等方法对灾害的特征和形成演化等进行了分析,研究结果显示:"6.17"梅龙沟泥石流属低频粘性大规模泥石流,强降雨是引发泥石流的直接因素,前期降雨、高温融雪和地貌环境的影响扩大了灾害规模。今后梅龙沟仍有暴发泥石流的可能,建议及时治理沟道,加强监测预警。
To explore the causes of the debris flow disaster in Meilonggou on 17 June, the author analyzed the characteristics and evolution of the disaster through on-site investigations, laboratory experiments, theoretical calculations. The research results showed that the debris flow in Meilong gully is low-frequency viscous large-scale debris flow, heavy rainfall is the direct cause. early rainfall, high temperature snowmelt, and the geomorphic environment has expanded the scale of the disaster. In the future, there is still a possibility of debris flow outbursting in Meilong gully. It is recommended to polish the channel in time and strengthen the monitoring and early warning.
作者
李睿祺
胡桂胜
陈宁生
杨志全
刘恩龙
LI Rui-qi;HU Gui-sheng;CHEN Ning-sheng;YANG Zhi-quan;LIU En-long(Faculty of Public Safety and Emergency Management.Kunming University of Science and Technology,Kunming 650093,China;Key Laboratory of Early Rapid Identification,Prevention and Control of Geological Diseases in Traffic Corridor of High Intensity Earthquake Mountainous Area of Yunnan Province,Kunming,Yunnan 650093,China;Key Lab of Mountain Hazards and Surface Processes,Institute of Mountain Hazards and Environment,Chinese Academy of Sciences,Chengdu.610041,China;Academy of Plateau Science and Sustainability,Xining 810016,China;College of Water Resources and Hydropower,Sichuan University,Chengdu 610065,China)
出处
《地质灾害与环境保护》
2021年第4期8-13,18,共7页
Journal of Geological Hazards and Environment Preservation
基金
国家重点研发计划课题:复杂山区泥石流物源量估算与预判关键技术(编号:2018YFC1505202)
中国科学院青年创新促进会项目(编号:2020367)
国家自然基金国际(地区)合作与交流项目:多尺度滑坡泥石流灾害链发生机制与风险韧性管控(项目编号:41861134008)。
关键词
丹巴县
梅龙沟
灾害性泥石流
运动特征
演化过程
Danba county
Meilong gully
disastrous debris flow
motion characteristics
evolution process
