| 陈建国,周文浩,孙 平.黄河下游驼峰河段的形成机理[J].水利学报,2010,41(8): |
| 黄河下游驼峰河段的形成机理 |
| On the formation mechanism of hump reach of the Lower Yellow River |
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| DOI： |
| 中文关键词: 驼峰河段 次生冲积扇 机械挖泥 加固堤防 |
| 英文关键词: hump reach sub-alluvial fan mechanical dredge embankment strengthening |
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| 中文摘要: |
| 黄河下游东坝头至艾山河段，河道泄洪能力小于其上下游河道，被称为 “驼峰” 河段，其峰顶在高村-孙口一带。本文分析了 “驼峰” 河段的特点、形成的历史背景、地理环境以及泥沙运动的模式；指出了今后一段时间内“驼峰” 河段的淤积及向下游延伸的不可避免性；并提出了机械挖泥与人工放淤相结合，加固大堤和滩区治理相结合的治理对策。 |
| 英文摘要: |
| The river reach between Dongbatou and Aishan stations of the Lower Yellow River is named the hump reach. Its flood conveying capacity is lower than other reaches in the upper and lower reaches of then river. The formation of the hump reach was resulted from the special historical background and geographical position. It locats at a sub-alluvial fan，which was formed after a serious dam break in 1855 and lies in the transitional area from the larger channel slope of the upper reach to the smaller slope of the lower reach. All of these provide a favorable condition for developing the hump reach. The further evolution of the sub-alluvial fan could be still expectable in the near future. Therefore，the hump reach must be rectified for the needs of flood prevention. The measure of mechanical dredge may be more suitable for this reach. The dredge should be combined with embankment strengthening and improvement of ecolo-environment of the floodplains. |
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