河北省太行山区泥石流灾害发育分布特征及防治

Disribution characteristics of debris flow at Taihang Mountains and its control

由于受太行山区地形地貌、气候特征、区域性地质构造活动及强烈的地壳抬升影响 ,河北省西部的泥石流极为发育 ,对人类及其生存环境带来了极大的危害。研究表明 ,我省太行山区泥石流的发育具有分区性、群发性、周期性及季节性等特征 ,流域面积一般为 1～ 5 km2 ,流域长宽比在 1～ 4之间 ,并且在其发生发展过程中常与其它地质灾害相互影响、相互转换。本文系统分析了太行山区复杂的地质构造、地形地貌及独特的气候条件和人类活动对泥石流形成的影响 ,并对泥石流危险度进行划分 ,提出了地质环境保护。

Under the influence of topography, landform, climate, geological structure and critical uplift of the Taihang Mountains, the debris flow is very active in HeBei Province.It brings about great effect to humanity and their living environment. The study in the paper indicates that the debris flow in Taihang Mountains takes on splitting, group, period and season, the dimension of valley is between one and five square kilometers, the ratio of length and width is between one and four. It often influences and converts, with other geological hazards during the course of development. The paper analyses complex geological structure, topography, landform, climate in the Taihang Mountains and effect on debris flow done by people activity as well as demarcates debris flow's dangerous degree, geological environment protection and control countermeasures have been supplied.