| 摘要: |
| 大藤峡水利枢纽通航建筑物拟采用单级船闸方案,其设计水头及闸室规模均处于世界单级船闸前列,输水系统水力学问题尤为突出,成为制约其单级船闸方案是否可行的关键因素.通过引入的相关输水能量指标参数,将大藤峡船闸单级方案与国内外典型高水头船闸进行了水力学综合比较,并对其引航道水流条件进行了初步分析.结果表明:国内外现有的船闸输水系统布置及取、泄水方案能够解决大藤峡船闸的相关水力学技术难题,采用单级布置方案是可行的,但需开展详尽深入的专题研究. |
| 关键词: 大藤峡水利枢纽 船闸 水力学 可行性 |
| DOI： |
| 分类号:U641.32 |
| 基金项目: |
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| Feasibility analysis of the filling and emptying system for Datengxia high head single-step shiplock |
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QIN Ye-chuan,XUAN Guo-xiang,MAI Jian-qing,LI Jun
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1.Guangxi Xijiang Development & Investment Group Co.,Ltd.,Nanning 530022,China;2.State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Key Laboratory of Navigation Structures,Nanjing Hydraulic Research Institute,Nanjing 210029,China;3.Guangxi Communications Planning,Surveying and Designing Institute,Nanning 530011,China)
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| Abstract: |
| Single-step lock has been selected for the navigation structure of Datengxia hydroproject,and its water head and chamber dimension both rank in the top of the world’s single-step locks,which makes its hydraulic problems of the filling and emptying system quite outstanding and become the key factor of its single-step plan’s feasibility.Based on the incoming energy parameters,a comprehensive hydraulic comparison between the Datengxia single-step lock and other huge and high head locks at home and abroad is carried out in this paper.Besides,the flow conditions in the approach channels are also preliminarily analyzed.The research results indicate that the related hydraulic problems of the Datengxia lock can be solved with the state-of-the-art lock techniques,and the single-step plan for the Datengxia lock is feasible.However,detailed hydraulic studies are still needed before construction of the lock. |
| Key words: Datengxia hydro-junction shiplock hydraulics feasibility |
