| 长江河口南港采砂对河床稳定性的影响 |
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| 引用本文： | 李茂田,程和琴,周丰年,吴敬文,李伯昌.长江河口南港采砂对河床稳定性的影响[J].海洋测绘,2011,31(1):50-53. |
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| 作者姓名： | 李茂田 程和琴 周丰年 吴敬文 李伯昌 |
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| 作者单位： | 1. 华东师范大学河口海岸研究院,上海,200062
2. 长江口水文水资源勘测局,江苏,太仓,215431 |
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| 基金项目： | 国家自然科学基金(40676028); 河口海岸国家重点实验室课题(2008KYYW01); 崇明岛潮滩水文动力变化基金(480011) |
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| 摘 要： | 利用多波束测深及数字高程模型技术发现:南港主槽有若干长50～100m,深3～5m的采砂坑;瑞丰沙体南侧存在高0.5～1.2m,长约1800m的两级陡坎,陡坎下有长1850m、宽400m、体积124.5万立方米的滑坡体.近8年来,瑞丰沙冲刷减少3724万立方米.采砂坑、陡坎与滑坡体形成的主要受采砂及其引起的瑞丰沙顶部水沙...
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| 关 键 词： | 多波束测量 数字高程模型 采砂 河床稳定性 长江口 |
The Effect of Sand Digging to Bedfrom Stability of the Nangang Channel in the Changjiang River Mouth |
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| LI Mao-tian,CHENG He-qin,ZHOU Feng-nian,WU Jing-wen,LI Bo-chang.The Effect of Sand Digging to Bedfrom Stability of the Nangang Channel in the Changjiang River Mouth[J].Hydrographic Surveying and Charting,2011,31(1):50-53. |
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| Authors: | LI Mao-tian CHENG He-qin ZHOU Feng-nian WU Jing-wen LI Bo-chang |
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| Institution: | LI Mao-tian1,CHENG He-qin1,ZHOU Feng-nian2,WU Jing-wen2,LI Bo-chang2(1.State Key Laboratory for Estuarine and Coastal Research,East China Normal University,Shanghai,200062,2.Bureau of Hydrology and Water Resource of the Changjiang Estuary,Taicang,Jiangsu,215431) |
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| Abstract: | According to the bed-form data measured by multi-beam echo-sounding system(MBES) and digital elevation model(DEM),this parer is to examine the impacts of pumping-sand on the river bed-form evolution of the Nangang Channel in the Changjiang River mouth.The results is that there were 5 huge sandpits with 50-100m long and 3-5m depth,2 ranges steep ridge with 1800m long and 0.5-1.2m high and 1 huge landslide with 1850m long and 400m wide in Ruifeng shoal edge nearly sandpits in the Nangang Channel,and the volum... |
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| Keywords: | multibeam echosounding digital elevation model sand digging bedform stability the Changjiang river mouth |
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