| 新建桥墩对东围电排站排涝影响的试验研究 |
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| 引用本文： | 刘中峰,黄本胜,邱静,吉红香.新建桥墩对东围电排站排涝影响的试验研究[J].西华大学学报(自然科学版),2017,36(6):67-72. |
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| 作者姓名： | 刘中峰 黄本胜 邱静 吉红香 |
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| 作者单位： | 1.广东省水利水电科学研究院，广东 广州 510610 |
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| 基金项目： | 广东省水利科技创新项目2015-07 |
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| 摘 要： | 采用正态物理模型试验研究引水渠中新建桥墩对东围电排站排涝的影响。研究结果表明:常遇洪水时，新建桥墩引起电排站附近水位变化(上游渠道壅高、前池降低)较大，电排站前池流态明显恶化；大洪水时，新建桥墩客观上对水流起到了调节作用，使电排站自身设计问题造成的较差流态略有改善。综合来看，由于电排站在常遇洪水条件下运行更为频繁，新建桥墩造成的流态恶化对水泵机组的正常高效运行造成影响，给排涝带来一定的安全隐患。
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| 关 键 词： | 新建桥墩 东围电排站 物理模型试验 流态 排涝 |
| 收稿时间： | 2017-04-12 |
Experimental Study on Effect of the Newly-built Pier on Drainage of Dongwei Pumping Station |
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| LIU Zhongfeng,HUANG Bensheng,QIU Jing,JI Hongxiang.Experimental Study on Effect of the Newly-built Pier on Drainage of Dongwei Pumping Station[J].Journal of Xihua University:Natural Science Edition,2017,36(6):67-72. |
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| Authors: | LIU Zhongfeng HUANG Bensheng QIU Jing JI Hongxiang |
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| Affiliation: | 1.Guangdong Research Inst. of Water Resources and Hydropower, Guangzhou 510610 China |
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| Abstract: | Effect of the pier built in the diversion channel on drainage of Dongwei Pumping Station was studied from physical mode test of normal scale. The results show that (a) For frequent floods, a remarkable change of water level nearby the pumping station (rises in the upstream and declines in the forebay) and a deterioration of the flow pattern in the forebay caused by the pier were found. (b) For big floods, the newly-built pier objectively had a regulatory action on the flow, which slightly improved the poor flow pattern in the forebay caused by the design flaws of its own. But together, because the condition under which the pumping station works more frequently is frequent floods, the bad flow pattern caused by the pier impacts the normal and high efficiency operation of the pumps, which brings some potential security risks to drainage of the pumping station. |
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