| 摘要: |
| 主要介绍了山区河流枢纽上游引航道外导航墙的工作条件,通过几种上游引航道外导航墙常用形式的比较,提出一种在中低水级的河床式枢纽上较为适用的支墩浮式导航墙结构形式.然而由于山区河流洪水暴涨暴落、峰谷悬殊,使得这种形式的导航墙,要么采用高大的支墩,要么渡洪时浮囤拆卸、系泊困难.为此,结合嘉陵江草街船闸的实际布置,提出了浮囤潜水渡洪的方案,既节约工程投资,又解决了渡洪问题.文中着重介绍了导航墙浮囤的主要结构及浮囤潜水渡洪的原理及过程,突出其建筑物高程低于设计洪水,汛期渡洪无须专人驻船管理的优点. |
| 关键词: 山区河流 支墩浮式导航墙 浮囤潜水渡洪 |
| DOI： |
| 分类号:U641.3 |
| 基金项目: |
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| Research of anti-flood pontoon of buttress floating guide wall of a mountainous river ship lock |
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LI Yue-qing,LI Wei
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(Sichuan Communications Surveying & Design Institute,Chengdu 610017,China)
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| Abstract: |
| This paper mainly describes the working conditions of the guide wall outside the upstream approach channel of a mountainous river project,comparing with several commonly used forms of the outer guide wall of the upper approach.It proposes a structure form of buttress floating guide wall which is more applicable to the project in a middle and lower water-level river channel.However,due to the mountainous flood surging and dropping in disorder,it either makes the guide wall in such forms take huge buttress or suffer the difficulties in the removal of pontoon.This paper considers the actual layout of Caojie shiplock in the Jialing River,and raises a proposal for the pontoon to ride out the flood,which not only saves the investment,but also solves the problem of the safety through the flood.This paper focuses on the main structure of this guide wall pontoon and the theory and process of the pontoon riding out the flood.It highlights those advantages such as construction height lower than designed flood level and unmanned management in the ship in flood seasons. |
| Key words: mountainous river buttress floating guide wall pontoon riding out flood |
