基于最小能耗率原理的河床稳定性判据
发布时间：2019-02-13 09:15
【摘要】：为了解决河床稳定走势问题,基于最小能耗率、雷诺平均法以及变分原理,提出了河床稳定性判据.通过与文献资料数据、纵断面稳定系数进行比对,验证了此河床稳定性判据.同时,结合黄河下游自花园口至利津等7个水文站所形成的6个河段,在1972,1973,1975—1980,1982,1985,1987,1988和1991—2000年等21年的水文资料,对黄河下游不同河型进行了稳定性分析.结果表明:黄河下游河床稳定性逐渐降低,孙-艾和艾-泺河段稳定性最差,需要对河岸进行加固;黄河是地上悬河,高含沙水流中的泥沙在中下游逐渐淤积抬高了河床,从而导致河床稳定性降低.
[Abstract]:In order to solve the problem of river bed stability, a criterion of river bed stability is proposed based on the minimum energy consumption rate, Reynolds average method and variational principle. The stability criterion of the river bed is verified by comparing with the literature data and the stability coefficient of the longitudinal section. At the same time, according to the hydrological data of 7 hydrologic stations from Huayuankou to Lijin in the lower reaches of the Yellow River, the stability of different river types in the lower Yellow River was analyzed on the basis of the hydrological data from 1972 to 1985, 19871988 and 1991-2000. The results show that the stability of the riverbed in the lower reaches of the Yellow River decreases gradually, and the stability of the section of Sun-Ai He Il-Luohe is the worst, so it is necessary to reinforce the riverbanks. The Yellow River is suspended on the ground, and the sediment in the high sediment flow gradually silts up the riverbed in the middle and lower reaches of the river, which results in the decrease of the stability of the riverbed.
【作者单位】： 鲁东大学土木工程学院;大禹节水(天津)有限公司;
【基金】：山东省优秀中青年科学家科研奖励基金资助项目(BS2014SF016) 山东省“泰山学者”人才工程项目(shw201502050) 鲁东大学博士启动基金资助项目(LY2014026) 山东省自然科学基金资助项目(ZR2011EL049) 中国海域波能再生资源变化趋势的综合评估项目
【分类号】：TV147
本文编号：2421394
[Abstract]:In order to solve the problem of river bed stability, a criterion of river bed stability is proposed based on the minimum energy consumption rate, Reynolds average method and variational principle. The stability criterion of the river bed is verified by comparing with the literature data and the stability coefficient of the longitudinal section. At the same time, according to the hydrological data of 7 hydrologic stations from Huayuankou to Lijin in the lower reaches of the Yellow River, the stability of different river types in the lower Yellow River was analyzed on the basis of the hydrological data from 1972 to 1985, 19871988 and 1991-2000. The results show that the stability of the riverbed in the lower reaches of the Yellow River decreases gradually, and the stability of the section of Sun-Ai He Il-Luohe is the worst, so it is necessary to reinforce the riverbanks. The Yellow River is suspended on the ground, and the sediment in the high sediment flow gradually silts up the riverbed in the middle and lower reaches of the river, which results in the decrease of the stability of the riverbed.
【作者单位】： 鲁东大学土木工程学院;大禹节水(天津)有限公司;
【基金】：山东省优秀中青年科学家科研奖励基金资助项目(BS2014SF016) 山东省“泰山学者”人才工程项目(shw201502050) 鲁东大学博士启动基金资助项目(LY2014026) 山东省自然科学基金资助项目(ZR2011EL049) 中国海域波能再生资源变化趋势的综合评估项目
【分类号】：TV147
【相似文献】
相关期刊论文 前2条
1 韦直林;评河流最小能耗理论[J];泥沙研究;1991年02期
2 常美;徐国宾;;最小能耗率原理的数值水槽模拟验证[J];泥沙研究;2013年02期
，本文编号：2421394
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