栖霞市生木树泥石流隐患点发育特征及发展趋势分析评价

栖霞市生木树泥石流隐患点为烟台市471处地质灾害隐患点其中1处,曾于1979年7月因暴雨引发泥石流灾害,给当地村民造成严重经济损失。以该泥石流沟流域作为研究区,并以区内泥石流发育的自然环境、基本特征及形成泥石流的地质条件、物源条件和水源条件等勘察成果为基础,综合分析区内泥石流发育特征、类型、形成机理、引发因素,并选取相关参数对泥石流基本特征值进行计算,为同类型泥石流的防治提供科学依据。综合研究确定区内泥石流易发程度为轻度易发,现阶段泥石流沟发展阶段为发展期,泥石流灾害趋于相对稳定,但一旦遭遇暴雨至特大暴雨,可能会再次引发泥石流地质灾害。

Analysis and Evaluation of Development Characteristics and Development Trend of Potential Danger Points of Shengmushu Debris Flow in Qixia City

Shengmushu debris flow in Qixia city is one of hidden danger point in 471 potential geological hazards in Yantai City. In July 1979, debris flow disaster caused serious economic losses to local villagers and threatened the safety of people''s lives and property. Taking the debris flow basin as the study area, natural environment and basic characteristics of the development of debris flow, geological conditions, source conditions and water source conditions of debris flow formation and other survey results as the basis, the development characteristics, types, formation mechanism and initiation factors of debris flow in the area have been comprehensively analyzed, and relevant parameters have been selected to calculate the basic characteristic values of debris flow, so as to provide scientific basis for the prevention and treatment of the same type of debris flow. According to comprehensive study, the degree of debris flow in the area is mild. At present, the development stage of debris flow gully is the development stage, and the debris flow disaster tends to be relatively stable.