| 长江下游拦江矶碍航特征及整治措施 |
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| 引用本文： | 张幸农,张思和,陈长英,黄晋鹏.长江下游拦江矶碍航特征及整治措施[J].水利水运工程学报,2011,0(1). |
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| 作者姓名： | 张幸农 张思和 陈长英 黄晋鹏 |
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| 作者单位： | 南京水利科学研究院,江苏,南京,210029 |
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| 摘 要： | 拦江矶是长江下游典型的礁石碍航滩险,既存在通航水流条件问题也有泥沙问题.通过河工模型试验与河床演变分析,以实测资料和模型试验数据为依据,全面分析了滩险碍航特征及变化规律,并在此基础上,进行了炸礁整治工程措施布置方案的试验研究,分析了工程实施后滩段通航水流条件的改善及航槽的稳定性.研究结果表明:实施炸礁工程措施,扩大了航道局部断面,并使航槽内分流量增加、流速增大,航槽内不会出现泥沙淤积,反而略有冲刷,可保障航槽的稳定性.
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| 关 键 词： | 长江下游 礁石滩险 整治措施 试验研究 |
Feature of Lanjiangji hazardous rapids and its improvement in the lower Yangtze River |
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| ZHANG Xing-nong,ZHANG Si-he,CHEN Zhang-ying,HUANG Jin-peng.Feature of Lanjiangji hazardous rapids and its improvement in the lower Yangtze River[J].Hydro-Science and Engineering,2011,0(1). |
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| Authors: | ZHANG Xing-nong ZHANG Si-he CHEN Zhang-ying HUANG Jin-peng |
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| Affiliation: | ZHANG Xing-nong,ZHANG Si-he,CHEN Zhang-ying,HUANG Jin-peng(Nanjing Hydraulic Research Institute,Nanjing 210029,China) |
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| Abstract: | Lanjiangji is a typical hazardous reef shoal in the lower Yangtze River with both flow pattern and sediment problems.Based on analysis of alluvial process and model tests,the feature and changing law of the navigation-obstructing flow of the shoal reach is studied.Then,the layout of reef blasting works is researched in model tests,and the improvement of flow pattern and the stability of navigable waterway in the shoal reach are analyzed and estimated.The results show that after performance of reef blasting ... |
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| Keywords: | the lower Yangtze River hazardous reef shoal improvement measurement model tests |
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