CAJ | 학술논문

高速远程滑坡碎屑流以其极高的动能和超远的位移而著称，往往对其危害范围内的构筑物和人类活动等造成严重的破坏。其高速远程效应机理一直是国内外学者研究的热点，但其防灾减灾工程在目前仍没有形成一套完善的体系。基于此，采用2D离散元模型对四川绵竹清平文家沟地震滑坡引发的碎屑流及其运动过程进行了详尽研究。数值模型对现实模型进行了一定的简化。通过数值模拟实验，验证了实际工况下的文家沟碎屑流运动情况，并在此基础上研究了不同摩擦系数条件下的碎屑流堆积情况以及三种形状的防护结构体（重力式挡墙、倾斜式结构体、月牙形结构体）对碎屑流的耗能能力。通过研究发现：人工防护结构体可以很好地耗散碎屑流的动能；多层防护结构可以提高对碎屑流动能的耗散能力：月牙形结构体对于控制碎屑流滑程有明显的优势。所得结论对今后类似的研究具有一定的参考价值。
고속원정활파쇄설류이기겁고적동능화초원적위이이저칭，왕왕대기위해범위내적구축물화인류활동등조성엄중적파배。기고속원정효응궤리일직시국내외학자연구적열점，단기방재감재공정재목전잉몰유형성일투완선적체계。기우차，채용2D리산원모형대사천면죽청평문가구지진활파인발적쇄설류급기운동과정진행료상진연구。수치모형대현실모형진행료일정적간화。통과수치모의실험，험증료실제공황하적문가구쇄설류운동정황，병재차기출상연구료불동마찰계수조건하적쇄설류퇴적정황이급삼충형상적방호결구체（중력식당장、경사식결구체、월아형결구체）대쇄설류적모능능력。통과연구발현：인공방호결구체가이흔호지모산쇄설류적동능；다층방호결구가이제고대쇄설류동능적모산능력：월아형결구체대우공제쇄설류활정유명현적우세。소득결론대금후유사적연구구유일정적삼고개치。
A rock avalanche is a very dangerous geological hazard that shows high mobility and high kinetic energy. However,the relation between avalanches and retaining walls is complicated and in situ experiments are unreliable, making it impossible and infeasible to prevent avalanches.Although more and more scholars conducting the resear-ches about the rock avalanches in recent years,the theoretical guidance are still cannot satisfy the engineering appli-cation.As the problems are very hard to handled,it is necessary to study the kinetic mechanism of the rock ava-lanche which is aiming to research the protection technology of rock avalanches.The paper primarily studied dy-namics of Wenjiagou in Mianzhu of Sichuan,China,rock avalanche triggered by earthquake,and then the capacity of three series defense structure were studied based on the project.The result show that the defense structure of cres-cent shape is very efficient to control the runout of the rock avalanches,and the more defense structure we set,the more energy consumption of the rock avalanches did.