金沙江下游库区翻坝码头结构型式及适应性分析.doc
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1、金沙江下游库区翻坝码头结构型式及适应性分析金沙江下游库区翻坝码头结构型式及适应性分析 刘耕 摘要:金沙江腹地矿产资源丰富,资源输出需求大,但金沙江通航设施与翻坝运输能力的不足,已经成为制约库区航道货运能力的主要瓶颈,国内对翻坝运输系统中的超大水位差,长变动回水段码头水工结构型式研究少。本文总结了常用的内河库区码头结构形式,并根据库区水文条件、地形地质环境,结合翻坝货物需求特点,分析并提出了适用于金沙江翻坝码头水工结构型式,为金沙江下游各翻坝码头建设提供参考。 Abstract: Jinshajiang hinterland is rich in mineral resources and ha
2、s a large demand for resource output. However, the shortage of Jinshajiang navigation facilities and dam-turning transport capacity has become the main bottleneck restricting the shipping capacity of the waterway in the reservoir area. There are few researches on the hydraulic structure type of the
3、wharf in the dam-turning transport ayatem at home and abroad. This article summarizes the common- structural forms of wharf in the inland river reservoir area, and analyzes the preliminary hydraulic structure types applicable to the Jinshajiang dam-turning pier based on the characteristics of the da
4、m turning pier above and below the dam, combined with the on-site waterway, hydrology, terrain and geological conditions. The scheme, combined with the characteristics of the existing structure of dam-turning docks in China, proposes several reasonable and applicable general layout forms of dam-turn
5、ing docks, which provides a reference for the construction of dam-turning wharfs in the lower reaches of the Jinshajiang. 关键词:金沙江下游;大水位差;翻坝码头;结构型式;适应性 Key words: Jinsha river downstream;large water level difference;port wharf;structure type;adaptation 中图分类号:O317+.1 文献标识码:A 文章编号:1006-4311(20XX)14-016
6、1-02 0 引言 金沙江腹地矿产资源丰富,铁矿石和稀土储量位居全国前列,磷矿资源亦较丰富,金沙江货运量主要为当地出口矿产品(主要为煤炭、磷矿等散货)及建材等散货1。预计20XX年金沙江下段货运量将达到3000万吨2,考虑金沙江特殊的地理位置,水路运输是实现金沙江腹资源外运的较经济方案。随着金沙江下游四座电站的建成,库区形成“藕节式”深水航道,无法满足水路货物运输过坝的需求,库区通航设施不足和翻坝运输能力低是限制金沙江梯级水库群通航能力的关键。 金沙江下游为典型的山区河流,天然状态下,金沙江水流较急,水量丰沛,洪水期水位变化较缓,流量变幅不大,洪峰不突出。金沙江翻坝运输具有上下游水位变幅高、枢
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- 金沙江 下游 库区 码头 结构 型式 适应性 分析
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