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四川省甘孜州泸定县磨子沟是一条地处川西高原气候区,地形复杂的堵塞型泥石流沟。流域内松散固体物质总量约1.7×107 m3,其中,潜在不稳定物源量约2.30×106 m3。泥石流平均流速10.20m/s,峰值流量714m3/s。测得泥石流堆积物的密度为2.21g/cm3,含水量为13.3%。孔隙率为28%,塑限18.4%,液限为31.6%,阵性大雨和持续性降雨都极易引起泥石流的爆发。磨子沟是一条高度危险的泥石流沟,对近沟口附近区域拟开展的各类工程活动存在一定不利影响。建议对拟设置的各类场地需尽量布置在泥石流的泛滥区域之外,并对该沟进行必要的治理。
Luding County, Ganzi Prefecture, Sichuan Province, Mozhaigou is located in a climate zone in western Sichuan Plateau, the terrain complex clogging debris flow ditch. The total amount of loose solid material in the basin is about 1.7 × 107 m3, of which, the potential source of unstable material is about 2.30 × 106 m3. Debris flow average velocity of 10.20m / s, the peak flow of 714m3 / s. The density of debris flow debris measured 2.21g / cm3, water content of 13.3%. Porosity is 28%, plastic limit is 18.4% and liquid limit is 31.6%. Both heavy rain and persistent rain can easily cause the outbreak of debris flow. Mozi ditch is a highly dangerous debris flow ditch, near the Mizobe mouth to be carried out in various types of engineering activities there is a certain adverse impact. It is suggested that all kinds of venues to be set should be arranged as far as possible out of the flooding area where mudslides flow, and the ditch should be treated as necessary.