北方冬季河道会结冰,河道上的水闸闸门在冰压力作用下会发生变形。在冰层附近,闸门会加速锈蚀,如养护不及时,其面板甚至被锈穿。这些现象的发生,严重影响了水闸功能的发挥,威胁水闸的安全。作者在海河流域水闸设计中,为了防止静冰压力对水闸闸门的破坏,先后采用了压力水射流法、压缩空气吹泡法、保温板法等多种方法进行比较研究及实践。通过几个冬季的运行观察,压力水射流法效果最佳,建议在其它水闸工程中推广使用。
Abstract
Sluice gate is generally distorted under the ice pressure in icy river of north China. The corrosion of sluice gate will accelerate, and even the steel plate of the gate will be penetrated right through around the ice layer if not maintained in time. The function and safety of the sluice will be severely affected. In the present research, methods including pressure water jet, compressed air bubble, and heat-preservation board are tested and evaluated to prevent the static ice pressure from damaging the sluice gate in Haihe River Basin. The pressure water jet method is proved to be the best approach by observation through several winters, and is suggested to be applied to sluice project in cold regions.
关键词
闸门 /
冰冻 /
压力水射流法 /
压缩空气吹泡法 /
保温板
Key words
sluice gate /
freeze /
pressure water jet /
compressed air bubble /
heat preservation board
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] 中国气象局. 中国地面气候标准值月值数据集(1971－2000年)[DB/OL] . (2005-04-25)[ 2012-07-27] . http://www.cma.gov.cn/. (China Meteorological Administration. Data of Monthly Standard Value of Ground Climate in China from 1971 to 2000[DB/OL] . (2005-04-25) [2012-07-27] . http://www.cma.gov.cn/. (in Chinese)
[2] 蔡 琳,陈赞延,张锁成,等. 中国江河冰凌[M] . 郑州:黄河水利出版社,2008.(CAI Lin , CHEN Zan-yan, ZHANG Suo-cheng, et al. River Ice in China[M] . Zhengzhou: Yellow River Water Conservancy Press, 2008.(in Chinese)
[3] 马喜祥,白世录,袁学安,等. 中国河流冰清[M] . 郑州:黄河水利出版社,2009.(MA Xi-xiang, BAI Shi-lu, YUAN Xue-an, et al. River Ice Situation in China[M] . Zhengzhou: Yellow River Water Conservancy Press, 2009.(in Chinese)
[4] SL 211—2006,水工建筑物抗冰冻设计规范[S] . 北京:中国水利水电出版社,2007.(SL 211—2006, Code for Design of Hydraulic Structures Against Ice and Freezing Action[S] . Beijing: China Water Power Press, 2007. (in Chinese)
PDF(1056 KB)
