| 红水河特大桥裸岩基础施工技术 |
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| 引用本文： | 赵允,魏玉印. 红水河特大桥裸岩基础施工技术[J]. 施工技术, 2011, 40(24) |
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| 作者姓名： | 赵允 魏玉印 |
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| 作者单位： | 中交一公局第三工程有限公司,北京,101102 |
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| 摘 要： | 红水河特大桥是湘桂铁路扩改工程的关键性控制工程。其连续梁主墩位于裸岩上,桩基所处岩层裂隙发育,施工难度大。通过水下静力爆破配合液压锤凿除基岩、浇筑水下混凝土、采用三面单壁钢围堰和岩石围堰相结合的方法解决了深水裸岩基础施工的难题。其双液注浆处理岩溶裂隙、临近既有铁路静力爆破等多项技术均取得良好效果。
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| 关 键 词： | 桥梁工程 基础 裸岩 水下施工 静力爆破 单壁围堰 |
Construction of Foundation on the Uncovered Rock for Hongshui River Bridge |
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| Zhao Yun,Wei Yuyin. Construction of Foundation on the Uncovered Rock for Hongshui River Bridge[J]. Construction Technology, 2011, 40(24) |
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| Authors: | Zhao Yun Wei Yuyin |
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| Affiliation: | Zhao Yun,Wei Yuyin(The Third Engineering Co.,Ltd.of the First Highway Engineering Bureau of CCCC,Beijing 101102,China) |
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| Abstract: | The Hongshui River Bridge is the key projects for expansion engineering of Hu'nan-Guizhou Railway.The main pier foundation of continuous beam is located on the uncovered rock.The construction of foundation is difficult because of the fractured rock.The difficulties for construction of uncovered rock foundation under deep water is solved by means of cutting the bedrock with under rock static blasting and hydraulic hammer,underwater pouring of concrete,as well as three sides single wall cofferdam compounding ... |
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| Keywords: | bridges foundation uncovered rock underwater construction static blasting single wall cofferdams |
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