| 摘要: |
| 滩群河段广泛分布于西南山区河流，与单一滩段的航道整治相比，多个距离较近滩点形成的滩群，通航环境复杂，整治难度更大.通过对不同山区河流典型滩群的河势特点、碍航特征与整治经验的总结，归纳了滩群的碍航特征与整治时应遵循的一般原则.滩群河段的各滩点碍航特征各异，但滩群河段的主要碍航特征通常与滩群所处的长河段的河势特征有关.滩群的整治应顺应河势，注意个滩整治对相邻滩的影响，着重解决好控制性滩点的整治；对于沙卵石浅滩群，应考虑整治后各滩点间的输沙平衡. |
| 关键词: 滩群 碍航特征 航道整治 |
| DOI： |
| 分类号:U617.3 |
| 基金项目:西部交通建设科技项目(2009328000011) |
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| Analysis of navigation hindering characteristics and regulation principle of shoal group reaches of mountain rivers |
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ZHAO Zhi-zhou1, ZHAO Shi-qiang2, XU Guang-xiang1
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1.River and Ocean Engineering Department of Chongqing Jiaotong University;2.Chongqing Southwest Water Transportation Engineering Institute
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| Abstract: |
| The shoal group reach distributes widely in the southwest mountainous river. Compared with a single shoal reach， the navigation environment of the shoal group reach, which consists of a lot of shoals or rapids sections close to each other， is complex and more difficult to be regulated. By analyzing the sketch features， navigation hindering characteristics and regulation experiences of different shoal group reaches， the navigation hindering features and the general regulation principles which should be followed are summarized. Though the navigation hindering characteristics of each shoal section are different， the characteristics of the shoal group reach are generally associated with the river regime characteristics of the long reach where the shoal group exists. The regulation of the complex shoal group should conform to the river regime， consider the influence of adjacent shoal section， and focus on improving the navigation environment of the controlled shoal section. For sand pebble shoal group，the sediment transport balance of shoal reaches after regulation should be considered too. |
| Key words: shoal group reach navigation hindering characteristics waterway regulation |
