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冰川冻土 ›› 1984, Vol. 6 ›› Issue (2): 69-76.

• 研究论文 • 上一篇    下一篇

绥化地区水库土坝护坡冻害及其防治经验

吴云峰   

  1. 黑龙江省绥化地区行政公署水利局
  • 收稿日期:1983-01-18 出版日期:1985-05-25 发布日期:2012-04-26

Frost Damage of the Protecting Slope of the Reservoir Dams and the Treatments to Them in Suihua Area

Wu Yunfeng   

  1. Suihua Bureau of Water Conservancy, Heilongjiang Province
  • Received:1983-01-18 Online:1985-05-25 Published:2012-04-26

摘要: 绥化地区位于黑龙江省中部,南起北纬46度、北至北纬48度之间。夏季最高气温36℃,冬季最低气温-38℃,年平均气温2—3℃。封冻期五个月左右,地面最大冻深1.8—2.2米,属于季节性冻土区。

Abstract: Most of the protecting slopes of the reservoir dams constructed in Suihua area in recent years were destroyed by frost action. Based on the investigation of same of the slope, the author considered that the frost heave of the surface of the dam is the primary reason for the damage of the slopes. The different water contents of the slope above and below water level lead the differential frost heave causes the uneven movement of the built body of the slopes,resulting in the damage of the slopes.The ice pressure acting on the dams is another reason for the damage of the slopes.To protect the dams against frost damage, we thickened the sand and gravel-padded layer on the protecting slope of Dongbian reservoir dam. It works well in the past five years.