| 1. | A apparatus designed for testing the characteristic of bedload startup 泥沙起动特性测试仪研制 |
| 2. | Yellow river which is the second big river of china is famous to the world because of high content of bedload 黄河,是我国第二大河流,以泥沙含量高而闻名世界。 |
| 3. | Finally , bedload transport rate of dujiangyan was computed with several representative formulas 分别用几种有代表性的输沙率公式计算了都江堰河段的推移质输沙率。 |
| 4. | Bedload is the main factor resulting in bed form for few sands of suspend load in the river bed 河床质中几乎没有悬移质颗粒,对河床演变起主要作用的是推移质泥沙。 |
| 5. | The achievement of this paper has an important reference value in analyzing the mechanics of bedload movement in the mount river without field data 本文的研究成果对分析没有实测资料的山区河流卵石推移质的运动规律具有重要的参考价值。 |
| 6. | The measured data show that the bedload sediment transport rate is related more closely to the effective stream power within the bed - surface layer than to the river stream power 实测资料表明,推移质输沙率与床面层内有效水流功率有良好的相关性,且高于推移质输沙率与水流功率的相关性。 |
| 7. | Based on the relationship between energy and flow within the bed - surface layer , a relationship between the bedload sediment transport rate and effective stream power within the bed - surface layer is derived 摘要基于床面层内的水流能量关系,推导了推移质输沙率与床面层内有效水流功率的关系式。 |
| 8. | All the applications of the three models obtain inter - confirmed results so that the credible hydraulic conditions could be provided for the further calculation of the bedload transport 由于采用多种模型对长江河口水流进行数值模拟,便于相互印证,从而为长江口推移质输沙计算提供了可靠的水力依据。 |
| 9. | Verification results of more than 2800 runs of channel experiment data and field data show that this formula has good applicability and high accuracy , and is better than the other formulae for bedload sediment transport rate based on the stream power 经2800组试验资料与天然河流资料的检验表明,该关系式的适应性良好,计算精度较高,并优于同类型的基于水流功率的推移质输沙率公式。 |
| 10. | Then , the influence of several hydraulic factors on the bedload transport is discussed . it is concluded that the amount of bedload transport is dominated by the runoff discharge in the datong station , and partially influenced by the range of tide 文章进一步分析了各个水力要素对推移质输沙的影响,发现长江口推移质输沙总体上受大通流量控制,潮差对于推移质输沙的影响只有在洪季才变得明显。 |