河北省太行山区泥石流的灾变特征与崩滑演化机理

河北省太行山区为河北省泥石流的主要发生区,每年的7月下旬至8月上旬强降雨期间,中低山区域极易暴发泥石流灾害。该区泥石流的灾变特征包括沟谷地形地貌特征、暴雨激发特征、崩滑演化特征和运移特征,泥石流的形成运移具有4个明显的分区,即崩滑区、发生区、流通区和堆积区,现认真分析了泥石流的4个灾变特征,并从5个阶段研究了泥石流的崩滑演化机理。

Study On Forming Characteristics and Evolution Mechanism from Avalanche and Landslide of Debris Flow in Taihang Mountain Hebei Province

Taihang Mountain in Hebei Province is the primary area where debris flow always occur.During heavy rainy season from the last ten-day period of July to the first ten-days period of August every year,debris flow forms easily in the medium-low height mountain areas.In Taihang mountain area,there are four forming characteristics of debris flow:the landform characteristic,rainstorm evoking characteristic,Evolution characteristic from avalanche and landslide,moving characteristic.And there are also four zones of debris flow process:avalanche and landslide zone,forming zone,moving zone and accumulation zone.In this paper,the four forming characteristics of debris flow and the evolution mechanism from avalanche and landslide are studied.