山区河流泥石流灾害防治技术研究

摘要

为改善通航条件、提高航道等级,对山区河流泥石流灾害防治技术进行了研究.根据形成机理、运动规律、成灾机制、岸坡的地形地貌特点,把山区河流型泥石流分为坡面流和沟谷流;基于土质结构原理与岩土稳定理论,提出了修复植被、规范人类行为与截流排水、拦粗排细、转向导流等工程防治技术相结合的山区河流泥石流灾害的综合防治技术.结果表明,该技术能有效防治坡面泥石流或沟道泥石流对河流的破坏,确保航运畅通.%In order to improve the navigation condition and the grade of channel ,the control techniques on debris flow in mountain channel were analyzed in this paper.Based on the forming mechanism,motion law,disaster mechanism and the topography and geomorphology of bank slope,the debris flows were divided into overland debris flow and gulch debris flow.According to the soil structure principle and the rock and soil stability theory,a comprehensive control technique on the debris flow in mountain channel,which including plant restoration,engineering activities management and engineering control structures such as curtain drain, detention dam and curve training structure, was proposed.The results show that it can reduce the destruction of the debris flow on the banks of the mountain channel and ensure a smooth navigation.