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在查明新疆托克逊县阿拉沟景区泥石流地质灾害地质环境条件的基础上,对区内泥石流地质灾害的发育特征和形成机制进行了分析和研究。研究结果表明:泥石流位于托克逊县阿乐惠镇阿拉沟水库西侧,出露岩层大部分为泥盆系凝灰质砂岩,沟道内分布为第四系松散地层;将研究区泥石流划分为形成-流通区和堆积区,其中形成-流通区及堆积区界线明显;在有利的地形地貌和丰富的松散物的基础上,在雨水的作用下,为研究区泥石流的发育和形成提供了有利条件。
On the basis of ascertaining the geo-environmental conditions of debris flow geohazard in the Allagou scenic spot in the Tokun County of Xinjiang, the developmental characteristics and formation mechanism of the debris flow geological disasters in the area are analyzed and studied. The results show that the debris flow is located on the west side of Alagou reservoir in Alehu town, Toksun county. Most of the exposed strata are Devonian tuffaceous sandstones, and the channel is distributed in Quaternary loose strata. The debris flow in the study area is divided into formation - Circulation zone and accumulation zone, in which formation - the boundary between circulation zone and accumulation zone is obvious; on the basis of favorable topography and abundant loose material, under the action of rainwater, it provides favorable conditions for the development and formation of debris flow in the study area .