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宁安市现有各种类型水库14座,除桦树川水库为大型水库,卧龙河水库为中型水库外,其余12座是小型水库。水库总灌溉面积7.8万亩,保护耕地面积30万亩。保护人口12万人,多年来发挥了显著的经济效益和社会效益。从历年观测结果看,多数小型水库护坡冻害都比较严重,给水库安全渡汛增加了很大压力,同时也严重影响着水库效益的持续发挥。以下就护坡冻害发生机理及防治措施进行具体分析。
There are 14 reservoirs of various types in Ning’an City, except that Huashuchuan Reservoir is a large reservoir and Wolong River Reservoir is a medium reservoir, while the remaining 12 reservoirs are small reservoirs. The total irrigation area of 78000 acres of reservoirs, the protection of 300000 acres of arable land. Over 120,000 people have been protected and have made remarkable economic and social benefits over the years. According to the observation results over the years, most of the small reservoirs have more severe frost damage, which adds a lot of pressure to the flood control of reservoirs and seriously affects the sustainable development of reservoir benefits. Following the slope protection frost damage mechanism and prevention measures for specific analysis.