泥石流运动过程模拟分析

Simulation Analysis of Debris Flow Movement Process

腊月弄巴曲沟位于西藏自治区林芝市,地处青藏高原的东南部,历史上发生过泥石流灾害,对下游居民的生产和生活造成一定影响。为分析泥石流再次发生的后果,本文利用Massflow软件对腊月弄巴曲沟泥石流的运动过程进行模拟。结果表明,腊月弄巴曲沟运动过程分为4个阶段。运动过程结束时,堆积物占据拉月曲河道,堆积面积为419795 m^(2),最大堆积深度为9 m。

Located in Linzhi City,Xizang Autonomous Region,and in the southeast of the Qinghai-Tibet Plateau,the Layue Nongbaqu Gully has suffered from debris flow disasters in history,which have had a certain impact on the production and life of downstream residents.In order to analyze the consequences of the recurrence of debris flows,this paper uses Massflow software to simulate the movement process of the debris flow in the Layue Nongbaqu Gully.The results indicate that the movement process of Layue Nongbaqu Gully can be divided into four stages.At the end of the movement process,the accumulated material occupies the Layuequ River channel,with a accumulated area of 419795 m^(2)and a maximum accumulated depth of 9 m.