摘要
提要 在黑龙江省深度季节冻土区,传统的开敞式消能工有80％以上遭到冻害破坏,而组合式消能建筑物由竖井、消力齿、消力栅及底流组成多层重复消能,故效率高。而且多用拱形壳体组成,其结构紧凑,抗冻性能良好。经多年实践表明,这种组合式消能工在季节冻土区具有广泛的应用前景。
A composite contraction for dissipating water energy is mainly based on a shaft combining some tooth, network structures and ground floor. As a result, it becomes a closed system with a function of multi-decline of water head. Besides above, it is built by arch-shapped structures and the total size of the composite constraction is only and half of that in an open system, so, this kind of constraction is good for preventing frost damage. After operating for more than 20 years, it is shown that the composite constraction for dissipating water energy can be used in the regions with a maximum frost heave of 30 cm.
出处
《冰川冻土》
CSCD
北大核心
1990年第1期83-86,共4页
Journal of Glaciology and Geocryology
关键词
冻土
组合式
消能工
水工建筑物
composite constraction for dissipating water energy, seasonally frost regions
