| 船闸引航道内的异重流淤积计算* |
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| 引用本文： | 徐进超,李 云,宣国祥,安建峰,李 君.船闸引航道内的异重流淤积计算*[J].水运工程,2016(12):89-94. |
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| 作者姓名： | 徐进超 李 云 宣国祥 安建峰 李 君 |
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| 作者单位： | 南京水利科学研究院，水文水资源与水利工程科学国家重点实验室，通航建筑物建设技术交通行业重点实验室，江苏 南京 210029,南京水利科学研究院，水文水资源与水利工程科学国家重点实验室，通航建筑物建设技术交通行业重点实验室，江苏 南京 210029,南京水利科学研究院，水文水资源与水利工程科学国家重点实验室，通航建筑物建设技术交通行业重点实验室，江苏 南京 210029,南京水利科学研究院，水文水资源与水利工程科学国家重点实验室，通航建筑物建设技术交通行业重点实验室，江苏 南京 210029,南京水利科学研究院，水文水资源与水利工程科学国家重点实验室，通航建筑物建设技术交通行业重点实验室，江苏 南京 210029 |
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| 基金项目： | 国家重点研发计划（2016YFC0402003，2016YFC0402004）；交通运输部科技项目（20113287461680）;国家自然科学基金青年基金（51509162）；江苏省自然科学基金青年项目（BK20150079）；中国博士后科学基金面上资助（2015M581831） |
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| 摘 要： | 异重流淤积是引航道的主要淤积之一，其特点是淤积距离长、淤积总量大，如不及时清淤，则会减小通航水深、影响通航安全。在资料有限的条件下，采用已有公式对引航道的异重流淤积量进行初步计算，对认识引航道的淤积特性，制定初步的清淤方案有着重要的意义。在现有异重流淤积计算公式的基础上，提出了考虑异重流清水上升效应的沿程含沙量修正公式。与现有公式相比，其计算结果与实测值更接近，为异重流淤积量计算研究提供新途径。
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| 关 键 词： | 异重流 淤积 引航道 船闸 |
Calculation of the deposition caused by density flow in approach channel of ship lock |
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| XU Jin-chao,LI Yun,XUAN Guo-xiang,AN Jian-feng and LI Jun.Calculation of the deposition caused by density flow in approach channel of ship lock[J].Port & Waterway Engineering,2016(12):89-94. |
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| Authors: | XU Jin-chao LI Yun XUAN Guo-xiang AN Jian-feng and LI Jun |
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| Institution: | Nanjing Hydraulic Research Institute,State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Key Laboratory of Navigation Structure Construction Technology,Ministry of Transport,PRC,Nanjing 210029,China,Nanjing Hydraulic Research Institute,State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Key Laboratory of Navigation Structure Construction Technology,Ministry of Transport,PRC,Nanjing 210029,China,Nanjing Hydraulic Research Institute,State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Key Laboratory of Navigation Structure Construction Technology,Ministry of Transport,PRC,Nanjing 210029,China,Nanjing Hydraulic Research Institute,State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Key Laboratory of Navigation Structure Construction Technology,Ministry of Transport,PRC,Nanjing 210029,China and Nanjing Hydraulic Research Institute,State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Key Laboratory of Navigation Structure Construction Technology,Ministry of Transport,PRC,Nanjing 210029,China |
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| Abstract: | The main deposition in approach channel of ship lock is caused by density flow with the characteristics of long distance and large total volume.If the deposition is not treated in time,the navigable depth will be reduced to influence on the navigation security.Due to the limited materials,it has great value for make dredging scheme to calculate the deposition volume by the existing formulas.This paper advances the improved sediment concentration correction formula along river considering the increase of clean water in density flow.The calculated results by the proposed formula matches the measured data well,which provides a new way for the density flow deposition calculation. |
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| Keywords: | density flow deposition approach channel ship lock |
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