杨树沟泥石流形成环境条件及防治对策  

Environmental Conditions of Debris Flow Formation in Yangshugou and Its Control Measures

作　　者：郭巨[1] 刘亮[1] 吕菲[1] Guo Ju;Liu Liang;Lu Fei(Qinhuangdao No.8 Geological Brigade,Hebei Bureau of Geology and Mineral Resources Exploration,Qinhuangdao Hebei 066001,China)

机构地区：[1]河北省地矿局第八地质大队,河北秦皇岛066001

出　　处：《中国环境管理干部学院学报》2018年第3期23-25,66,共4页Journal of Environmental Management College of China

摘　　要：杨树沟曾经发生过3次泥石流,威胁主沟下游村庄、道路,属于易发泥石流沟,具有局部降雨强度高的气象水文条件,主沟狭长、支沟多的地形地貌环境条件,以及山坡两侧和沟底丰富的物源条件等特点。通过分析泥石流区段冲於特征和基本参数,提出对该泥石流沟的防治对策是"上游拦挡"与"下游排导防护"相结合。上游拦挡工程主要为设置拦挡坝,下游对原有防护堤进行加高、加长,将物源进行导流处理,以防止上游来水直冲居民聚居区。There have been three debris flows in the village of Yangshugou, which threatened the villages and roads downstream of the main gully, which belonged to the debris flow gully, with high local rainfall intensity, many landform and geomorphological conditions in the main gully and long narrow ditch, as well as the rich source conditions on both sides of the hillside and the bottom of the gully, and so on. By analyzing the characteristics and basic parameters of the debris flow section, the prevention and control measures for the debris flow ditch were put forward by the combination of ＂upstream block and downstream guide protection＂. At the same time, the upstream block proj-ect was mainly the valley dam. At the same time, the downstream protection embankment was len-gthened and the source was guided to prevent the direct flow of water from the residential area.

关 键 词：泥石流 环境条件 拦挡坝 防护堤 

分 类 号：X43[环境科学与工程—灾害防治]