河南卢氏县罗家沟泥石流灾害及其防治

Debris flow hazard and countermeasures at Luojia Gully,Lushi County,Henan province

通过对罗家沟地形地貌、暴雨特征、流域面积、地层岩性、地质构造、水文地质条件、泥石流物源的调查与分析研究,针对该泥石流具有危险性高、流量大、流速缓的特点,结合受灾害对象及其分布区域与整体布局的关系,按照防治结合、因地制宜、重点突出的原则设置了以排为主、挡土墙、排导槽、防护堤加板涵的综合治理方案。

By the investigation and analysis of the local topography,storm characteristics,drainage area,lithology,geological structure,hydrogeological conditions,the source of debris flow material,for the debris flow with a high risk of traffic flow,slow flow characteristics,combined with the subject disaster area and the object and its overall layout of the distribution relationship,according to the prevention and treatment combination,in accordance with local conditions,highlighting the main principles set in rows,the comprehensive countermeasures are set up,such as retaining walls,drainage canal,dikes plus plate culverts.