| 山区复杂条件超大跨径拱桥拱座施工技术 |
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| 引用本文： | 王成双.山区复杂条件超大跨径拱桥拱座施工技术[J].铁道建筑技术,2009(9):136-138,147. |
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| 作者姓名： | 王成双 |
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| 作者单位： | 中铁十三局集团第一工程有限公司,辽宁大连,116033 |
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| 摘 要： | 沪蓉国道主干线湖北沪蓉西（宜昌至恩施）高速公路支井河特大桥主桥为1×430m上承式钢管混凝土拱桥，其拱肋轴线采用悬链线。介绍了该拱座高边坡卸载防护、拱座大体积机制砂混凝土泵送、温控等相关施工技术。
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| 关 键 词： | 上承式拱桥 大体积混凝土 高边坡 钢管砼 机制砂 |
Construction Technologies of Super-span Arch Bridge Skewback in the Complex Mountainous Conditions |
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| Wang Chengshuang.Construction Technologies of Super-span Arch Bridge Skewback in the Complex Mountainous Conditions[J].Railway Construction Technology,2009(9):136-138,147. |
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| Authors: | Wang Chengshuang |
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| Institution: | Wang Chengshuang (China Railway 13^th Bureau Group Co. Ltd. , Dalian 116033, China) |
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| Abstract: | The main bridge of Zhijing River Mega Bridge of Shanghai-Chengdu national trunk Hubei Shanghai-Chengdu west （Yichang to Enshi） highway is 1 ×430 m deck concrete-filled steel tube arch bridge. Its arch rib axes use eatenary and it has the largest span among the bridges of the same type. The paper introduces the technologies of unloading protection in the skewback high slope, skewback large-volume manufactured sand concrete pumping, and temperature control. |
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| Keywords: | deck type arch bridge large-volume concrete high slope steel pipe concrete manufactured sand |
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