河西走廊水利工程风沙危害防治措施体系研究

Measures for wind sand disaster protection of Hexi Corridor Water Project

河西走廊地处西北内陆河流域,由于气候干旱、风大沙多,风沙对水利工程的填埋淤积非常严重。在对河西走廊水利工程风沙危害现状全面调查的基础上,按风沙危害成因,将危害类型划分为以风沙流为主、以河道水力输沙为主和以沙丘前移为主的三种形式,并分别以榆林河水库及干渠、双塔水库和解放村水库为例,研究建立了不同危害类型的防治措施配置体系,以期延缓风沙对当地水利工程的填淤过程。

Hexi Corridor is located at the river basin of Northwest China where landfill siltation of waterworks caused by wind and sand has been intensified due to the dry weather, strong wind and frequent sandstorm. The types of hazards caused by sand and wind are divided into three forms of wind-sand flow, sand carried by water flow in river channels and shifting sand dunes, on the basis of overall investigation of current situation of wind- sand damage to waterworks in Hexi Corridor. Protective measures for these three types of disasters are examined with case studies of Yulinhe Reservoir and Main Canal, Shuangta Reservoir and Jiefangcun Reservoir, in order to slow down the siltation process of waterworks.