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A New Model for the Regulation Width of Waterway Based on Hydraulic Geometry Relation

机译：基于水力几何关系的航道调节宽度新模型

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摘要

Based on the results of the width of channel regulation on the field observations and indoor experiments, a new model of the width of channel regulation on hydraulic geometry relation was proposed and its coefficients were determined in theory in terms of the principle of dimensional analysis and multiple linear regression method in this paper. Considering the action of channel width, average flow velocity, average water depth and the slope of bed river, the median grain size D_(50) was introduced. Through field data were verified well, and flow gradient formulas and hydraulic formulas results were compared with more consistent ones, and it was shown that this model could better reflect relatively stable riverbed. Moreover, the established expression not only was simple and explicit, but also better laid a good theoretical basis for waterway project design. Last, taking the waterway regulation project which was from Shaoguan to Qingyuan for calculation, the results showed that new calculation method was feasible and it could be a useful reference for the design of waterway regulation.
机译：基于实地观测和室内实验的水流调节宽度结果，提出了水力几何关系的水流调节宽度模型，并根据尺寸分析原理和多元理论确定了水流调节系数。本文采用线性回归方法。考虑河道宽度，平均流速，平均水深和河床坡度的影响，引入中值粒径D_（50）。通过现场数据验证良好，将流量梯度公式和水力公式结果与较为一致的公式进行比较，结果表明该模型能够较好地反映相对稳定的河床。而且，既定的表达方式既简单明了，又为航道工程设计奠定了良好的理论基础。最后，以韶关至清远的航道整治工程进行计算，结果表明新的计算方法是可行的，可为航道整治设计提供有益的参考。

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  • 来源
    《Mathematical Problems in Engineering》 |2013年第14期|182656.1-182656.8|共8页
  • 作者

    Ni Zhi-hui; Wu Li-chun; Zhang Xu-jin; Zeng Qiang; Wang Ming-hui; Yi Jing;

  • 作者单位

    Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education and National Engineering Research Center for Inland Waterway Regulation, Chongqing Jiaotong University, Chongqing 400074, China,Southwestern Research Institute of Water Transportation Engineering, Chongqing Jiaotong University, Chongqing 400016, China;

    Chongqing Education University, Chongqing 400067, China;

    Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education and National Engineering Research Center for Inland Waterway Regulation, Chongqing Jiaotong University, Chongqing 400074, China,Southwestern Research Institute of Water Transportation Engineering, Chongqing Jiaotong University, Chongqing 400016, China;

    Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education and National Engineering Research Center for Inland Waterway Regulation, Chongqing Jiaotong University, Chongqing 400074, China;

    Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education and National Engineering Research Center for Inland Waterway Regulation, Chongqing Jiaotong University, Chongqing 400074, China;

    Key Laboratory of Hydraulic and Waterway Engineering of the Ministry of Education and National Engineering Research Center for Inland Waterway Regulation, Chongqing Jiaotong University, Chongqing 400074, China;

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