| 堰塞坝溃坝洪水影响因素试验 |
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| 引用本文： | 罗利环,黄尔,吕文翠,张婧.堰塞坝溃坝洪水影响因素试验[J].水利水电科技进展,2010,30(5):1-4. |
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| 作者姓名： | 罗利环 黄尔 吕文翠 张婧 |
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| 作者单位： | 四川大学水力学与山区河流开发保护国家重点实验室,四川,成都,610065 |
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| 基金项目： | 国家重点基础研究发展规划("973"项目) |
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| 摘 要： | 针对影响堰塞坝溃坝洪水的主要因素制定室内水槽试验方案,分析入库流量、坝体物质组成、坝后坡度、坝顶长度及开槽宽度等5种因素对堰塞坝溃坝洪水的影响,采用水位计量测坝前库水位,根据水库水量动态平衡方程计算溃口下泄流量,通过对各种影响因素不同工况下的溃口流量过程线进行比较分析,得出规律如下:堰塞坝的入库流量和坝后坡度与最大洪峰流量正相关,与峰现时间反相关;坝体粗沙含量及坝顶长度与最大洪峰流量反相关,与峰现时间正相关;坝顶开槽宽度与最大洪峰流量及峰现时间反相关。
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| 关 键 词： | 堰塞坝 溃坝洪水 流量过程线 洪峰流量 峰现时间 |
| 修稿时间： | 2010/11/1 0:00:00 |
Experimental study on influence factors for dam-break flood of barrier dams |
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| LUO Li-huan,HUANG Er,L Wen-cui,ZHANG Jing.Experimental study on influence factors for dam-break flood of barrier dams[J].Advances in Science and Technology of Water Resources,2010,30(5):1-4. |
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| Authors: | LUO Li-huan HUANG Er L Wen-cui ZHANG Jing |
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| Affiliation: | LUO Li-huan,HUANG Er,L(U) Wen-cui,ZHANG Jing |
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| Abstract: | Schemes for the laboratory flume tests were prepared for the main influence factors for dam-break flood of barrier dams.The influences of 5 kinds of factors on the dam-break flood were analyzed,that is,incident discharge of reservoir,composition of dam materials,downstream slope of dam,length of dam crest and width of excavated channel.The water levels of the dam before dam-break were measured by use of water gauges,and the flow discharges through the breach were calculated by the dynamic balance equation f... |
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| Keywords: | barrier dam dam-break flood flow hydrograph peak discharge peak time |
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