CAJ | 학술논문

中国西北地区广泛分布着黄土且较厚，近些年，由于人们对泥流沟道的改造和环境的变化，泥流灾害在黄土地区不断加剧。本次研究，利用泥流沟道模型结合正交试验设计研究泥流的运动特性，得出流量对泥流平均速度影响最大，其次是容重，最后是坡度。泥流瞬时速度随时间变化表现出波的一些特性，波峰、波谷的交替变化表明，泥流运动时下垫层、沟谷形态对泥流运动影响较大。容重一定时，流量越大，瞬时速度变化范围越大。泥流在运动过程中存在明显的阵流，流量越大阵流次数越多，可以建立某一地区的阵流图，为泥流的预警和防治提供参考。
중국서북지구엄범분포착황토차교후，근사년，유우인문대니류구도적개조화배경적변화，니류재해재황토지구불단가극。본차연구，이용니류구도모형결합정교시험설계연구니류적운동특성，득출류량대니류평균속도영향최대，기차시용중，최후시파도。니류순시속도수시간변화표현출파적일사특성，파봉、파곡적교체변화표명，니류운동시하점층、구곡형태대니류운동영향교대。용중일정시，류량월대，순시속도변화범위월대。니류재운동과정중존재명현적진류，류량월대진류차수월다，가이건립모일지구적진류도，위니류적예경화방치제공삼고。
Vast expanse of land in the northwest China is covered by thick loess. In recent years, due to the transformation of mud flow channel and the change of environment, mud flow disaster is rising in loess areas. The movement characteristics of mud flow were studied on the basis of the model of mud flow ditch and orthogonal experiment. The results show that discharge has the largest impact on mean velocity, flowed by unit weight and ditch slope angle. The instantaneous velocity is wavy with time. The alternating change between peaks and valleys shows that bedding layer and valley shape have a great influence on mud flow movement. When the unit weight is constant, the bigger the flow rate is, the bigger range of the instanta?neous velocity will be. Intermittent debris flow is very obvious during mud flow moving,and the more the discharge is, the more the intermittent debris flow will be. The intermittent debris flow chart can provide a reference for early warning and prevention of mud flow.