| 采砂深度对分汊河道影响分析 |
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| 引用本文： | 张强,张小峰. 采砂深度对分汊河道影响分析[J]. 华东师范大学学报(自然科学版), 2009, 2009(3): 127-135 |
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| 作者姓名： | 张强 张小峰 |
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| 作者单位： | 武汉大学,水资源与水电工程科学国家重点实验室,武汉,430072;武汉大学,水资源与水电工程科学国家重点实验室,武汉,430072 |
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| 基金项目： | 国家重点基础研究发展规划(973计划)，国家自然科学基金，河口岸科学全国博士生学术论坛资助项目 |
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| 摘 要： | 以长江天兴洲河段为例，应用一般曲线坐标系下的平面二维水沙数学模型进行研究，并采用实测水沙数据进行率定与验证，模拟了不同流量级下采砂深度不同分流比、水位和流速变化规律，并进一步选取2004年作为典型水沙年，对采砂后河段冲淤变化及采砂区内泥沙回淤率进行预测.模型成果可为本河段采砂的可行性和采砂规模控制提供科学依据.
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| 关 键 词： | 平面二维水沙数学模型 采砂深度 分汊河道 分流比 泥沙回淤 |
| 收稿时间： | 2008-11-06 |
| 修稿时间： | 2009-02-19 |
Research on the effect of the sand mining depth in a braided channel |
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| ZHANG Qiang,ZHANG Xiao-feng. Research on the effect of the sand mining depth in a braided channel[J]. Journal of East China Normal University(Natural Science), 2009, 2009(3): 127-135 |
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| Authors: | ZHANG Qiang ZHANG Xiao-feng |
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| Affiliation: | State Key Laboratory of Water Resources and Hydropower Engineering Science;Wuhan University;Wuhan 430072;China |
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| Abstract: | A 2-D horizontal model with generalized curvilinear coordinates was applied to simulate flow and sediment transports in the Tianxingzhou reach of the Yangtze River.The model was first calibrated and verified using field data.The variations in the velocity distribution and water surface level were then simulated for the conditions of different flow discharges and different depths of sand mining.The model was also used to forecast the change of the reach and the sedimentation efficiency in mining areas after ... |
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| Keywords: | 2-D horizontal flow and sediment model sand mining depth braided channel water distribution sediment re-silt |
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