文章摘要
曹帅,张红武,赵晨苏,朱明东.变坝坡赤泥库漫顶溃坝模型试验研究[J].水利学报,2019,50(4):428-438
变坝坡赤泥库漫顶溃坝模型试验研究
Experimental study on dam-break of a red mud reservoir with complex dam slopes
投稿时间:2019-01-05  
DOI:10.13243/j.cnki.slxb.20190020
中文关键词: 赤泥库  漫顶溃坝  模型试验  最大淹没高度  变坝坡
英文关键词: red mud reservoir  dam-break  model test  maximum submergence height  complex dam slopes
基金项目:国家重点研发计划项目(2016YFC0402500);延安市重大科技项目(2016CGZH-14-03)
作者单位
曹帅 清华大学 水沙科学与水利水电工程国家重点实验室, 北京 100084 
张红武 清华大学 水沙科学与水利水电工程国家重点实验室, 北京 100084
清华大学 黄河研究中心, 北京 101309 
赵晨苏 北京科技大学 土木与资源工程学院, 北京 100083 
朱明东 清华大学 黄河研究中心, 北京 101309 
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中文摘要:
      赤泥是氧化铝厂生产排放的一种性质独特的弃渣,因颗粒极细,赤泥库一旦溃坝,具有特殊的规律。本文以某赤泥库及下游沟道为整体研究对象,采用尾矿库物理模型试验方法,对赤泥尾矿库漫顶溃坝的发展过程及其机理进行分析。其结果表明:赤泥尾矿库溃坝发展规律比较复杂,在过程上可划分为洪峰前段、洪峰段及洪峰后段,且每阶段都有接近动态平衡的趋势;较大的坝坡变化使坝面空间上存在冲淤分区现象。最后,推导了赤泥流在下游沟道内演进的最大淹没高度计算公式,并利用模型试验资料对该公式进行了检验。
英文摘要:
      Red mud is a kind of waste slag with unique properties discharged from alumina production. Therefore,red mud reservoir has special dam-break characteristic because of its extremely fine tailings par-ticles. In this paper,a red mud reservoir and its downstream channel were studied as a whole,and the de-velopment process and mechanism of the overflow dam break about the tailings reservoir were analyzed by physical model test. The test results show that the dam-break development law of the red mud reservoir is relatively complex, and the process can be divided into three stages, and each stage has a trend of ap-proaching dynamic equilibrium. In addition, the large change of dam slope results in the different partition phenomenon on the dam surface space. Finally, the formula for calculating the maximum submergence height of red mud flow in the downstream channel is derived and verified by model test data.
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