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以野外实际调查资料为依据,在浅述区域地质环境概况的基础上,深入分析了泥石流形成条件,认为陡峭的山体、密集发育的沟谷以及较大的沟谷比降、丰富的松散固体物质储备,对短时间内汇集大量的水石极为有利,同时也为泥石流的发育和形成提供了强大的势能和物质来源,而下游海子湖相对宽阔的扇形地又为泥石流提供了充足的堆积场所,“7.29”短历时、高强度、集中式的强降水是泥石流形成的激发因素;泥石流类型为典型的强降雨坡面侵蚀型中频稀性沟谷型发展期泥石流,其形成区、流通区及堆积区的界线较明显;提出了“拦+固+清淤+护+排导”泥石流综合治理方案。
On the basis of the survey data of the field, based on the general situation of the regional geological environment, the formation conditions of the debris flow, the steep mountain, the densely developed valleys, the larger ratio of the valleys, the abundant reserves of loose solid matter, It is extremely beneficial to bring together a large amount of water stone in a short period of time, and at the same time provides a powerful source of potential energy and material for the development and formation of debris flow, while the relatively wide sector of the downstream Hazi Lake provides sufficient accumulation sites for debris flow. Short duration, high intensity and concentrated heavy rainfall are the motivation factors for the formation of debris flow. The type of debris flow is a typical heavy rainfall slope erosion type medium frequency dilute-trough type development debris flow. Its formation, circulation and accumulation area The more clear line; proposed “block + solid + dredging + protection + drainage” "debris flow comprehensive management program.