| 排水站冰冻破坏原因分析及抗冰冻设计方案研究 |
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| 引用本文： | 李洪升,刘晓洲,石军,翟伟,张更元.排水站冰冻破坏原因分析及抗冰冻设计方案研究[J].冰川冻土,2006,28(1):136-140. |
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| 作者姓名： | 李洪升 刘晓洲 石军 翟伟 张更元 |
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| 作者单位： | 大连理工大学,工程力学系工业装备结构分析国家重点实验室,辽宁,大连,116023;沈阳市水利局,辽宁,沈阳,110013;新民市水利局,辽宁,新民,112000 |
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| 摘 要： | 在寒冷地区建筑的排水站,由于冰冻而造成的破坏影响了工程的使用性能,甚至会使其完全失去作用.针对具体的排水站工程,分析了冰冻破坏的原因,其中的排架柱为静冰压力和冻融循环联合作用引起的破坏;集水池护坡为冻融反复作用的冻融“疲劳”破坏.根据破坏原因分析与计算结果提出抗冰冻破坏的设计方案,对排架柱采用正锥体结构并设防水层,对护坡采用3种不同结构型式,分别是混凝土砌块护坡、混凝土板护坡和对原护坡的改造方案.经计算,3种方案均可以达到抗冻胀破坏的目的.
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| 关 键 词： | 排水站 冰冻破坏 冰压力 冻胀力 |
| 文章编号： | 1000-0240(2006)01-0136-05 |
| 收稿时间： | 07 13 2005 12:00AM |
| 修稿时间： | 10 11 2005 12:00AM |
Analysis of the Damage Causes due to Ice and Frost and Design of Drainage-Pumping Station against Ice and Frost |
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| LI Hong-sheng,LIU Xiao-zhou,SHI Jun,ZHAI Wei,ZHANG Geng-yuan.Analysis of the Damage Causes due to Ice and Frost and Design of Drainage-Pumping Station against Ice and Frost[J].Journal of Glaciology and Geocryology,2006,28(1):136-140. |
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| Authors: | LI Hong-sheng LIU Xiao-zhou SHI Jun ZHAI Wei ZHANG Geng-yuan |
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| Institution: | 1. Engineering Mechanics Department, Dalian University of Technology, Dalian Liaoning 116023, China ;2. Shen yang Bureau of Water Resource, Shenyang Liaoning 110013, China; 3. Xinmin Bureau of Water resource, Xinmin Liaoning 112000, China |
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| Abstract: | Drainage-pumping stations in cold regions will be damaged by ice and frost,even lose their function completely.The causes of the damage due to ice and frost on a drainage-pumping station are analyzed.Arranged frame columns are destroyed by co-exertion of ice pressure and freezing-thawing cycle.Slope protections of collecting tank are damaged owing to repeated freezing-thawing cycles.These processes were quantitatively calculated.According to the analyses and calculations,a design scheme against the ice and frost is put forward.In order to avoid the damage of ice and frost,positive cone and waterproofing layer should be applied to arranged frame columns.Three different configurations of slope protection are put forward,which are demonstrated by numerical calculations,i.e.,concrete-block protection,concrete plate protection and reconstructed revetment. |
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| Keywords: | pumping station ice and freezing failure ice pressure frost heaving forces |
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