| 费祥俊,舒安平,王乐.黄河下游河相关系及其泥沙输移的量化表征方法[J].水利学报,2025,56(6):739-746 |
| 黄河下游河相关系及其泥沙输移的量化表征方法 |
| Quantifying geometric relation and suspended sediment transport in the Lower Yellow River |
| 投稿时间：2024-11-02 |
| DOI：10.13243/j.cnki.slxb.20240710 |
| 中文关键词: 黄河下游 河相关系 含沙量 泥沙输移 量化表征 |
| 英文关键词: lower Yellow River geometric relation sediment concentration sediment entrainment quantitative characterization |
| 基金项目:国家自然科学基金重点项目（52039001）；国家自然科学基金青年科学基金项目（52009041） |
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| 中文摘要: |
| 黄河是典型的多沙河流,其高含沙水流对河流演变的影响不容忽视,传统的河相关系多主要考虑流量要素,鲜少涉及挟沙水流含沙量要素,所建立的河相关系不能充分解释黄河下游河相变化特征。鉴于此,本研究通过引入含沙量要素,使用已有的试验数据及黄河下游实测资料,并采用稳定河宽判定关系,推导建立了黄河下游新的河相关系,该河相关系可以有效量化表征黄河下游泥沙输移的水流挟沙力、不淤流速和平滩流量等特征指标。研究成果可为促进黄河下游河道整治与可持续发展提供科学依据。 |
| 英文摘要: |
| The Yellow River is characterized by high sediment concentration and demonstrates a significant role in shaping the river’s evolution. However, most earlier studies predominantly focused on the flow magnitude and paid inadequate attention to the effect of sediment concentration. As a result, the existing river facies relationships are insufficient to explain the key issues, including river geometric variability and reach-scale channel patterns. To address this gap, the present study aims to develop a new set of hydro-sediment geometric relations for the lower Yellow River through considering the sediment-concentration influence as well as incorporating the stable channel width criterion. These relations offer a quantitative characterization of sediment-laden capacity, non-settling velocity and bank-full discharge associated with sediment entrainment in the lower Yellow River. The findings of this research provide a scientific basis for promoting the river regulation and sustainable development in this basin. |
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