| 营盘路湘江隧道水下浅埋大跨段隧道施工工法研究 |
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| 引用本文： | 于勇.营盘路湘江隧道水下浅埋大跨段隧道施工工法研究[J].隧道建设,2013,33(10):874-882. |
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| 作者姓名： | 于勇 |
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| 作者单位： | （中铁隧道勘测设计院有限公司， 天津 300133） |
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| 摘 要： | 为保证营盘路湘江隧道水下浅埋大跨断面的施工安全，合理地确定施工组织方式、施工措施及超大断面施工方法，通过借鉴前人研究的成果，提出水下浅埋大跨段的施工工法设计方案，并利用三维模型对开挖过程进行仿真模拟。计算及施工监控数据分析证明了施工过程中采取的14部开挖、双层支护、提前扩挖过渡等技术的合理性，成功解决了湘江水下最大跨度隧道施工安全稳定的难题。
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| 关 键 词： | 湘江隧道 水下浅埋 大跨段 变断面 注浆 双层初期支护 监测 |
| 收稿时间： | 2013-05-10 |
A Study on Construction Technologies for the Shallow, Large-span and Underwater Section of Xiangjiang River Crossing Tunnel at Yingpan Road |
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| YU Yong.A Study on Construction Technologies for the Shallow, Large-span and Underwater Section of Xiangjiang River Crossing Tunnel at Yingpan Road[J].Tunnel Construction,2013,33(10):874-882. |
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| Authors: | YU Yong |
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| Institution: | (China Railway Tunnel Survey and Design Institute Co., Ltd., Tianjin 300133, China) |
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| Abstract: | The construction technologies for the shallow large-span underwater section of Xiangjian river-crossing tunnel at Yingpan road are studied,and the excavation of the tunnel section is simulated by means of 3 D model,so as to guarantee the construction safety and to select proper construction organization and proper construction method.The analysis on the calculation and monitoring data proves that the 14-step excavation method,double-shell support technology and transitional section excavation technology adopted in the tunnel construction are rational.For the sake of the construction technologies mentioned,the safety and stability of the shallow large-span section of Xiangjiang river-crossing tunnel are guaranteed. |
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| Keywords: | Xiangjiang river-crossing tunnel shallow cover large span section cross-section changing grouting double-shell primary support monitoring |
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