| D型便梁加固在羊子岭隧道进口段下穿既有铁路施工中的应用 |
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| 引用本文： | 陈文珍.D型便梁加固在羊子岭隧道进口段下穿既有铁路施工中的应用[J].隧道建设,2009,29(3):356-360. |
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| 作者姓名： | 陈文珍 |
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| 作者单位： | 中铁二十局集团有限公司 |
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| 摘 要： | 以襄渝二线羊子岭隧道进口段下穿既有铁路施工中采取D便梁加固整体架空既有铁路线路为例，阐述D便梁选型及布置计算，并介绍线路加固施工方法、施工要点、施工监测及安全保证措施等。
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| 关 键 词： | D型便梁 下穿既有铁路 线路加固 施工技术 |
| 收稿时间： | 2009-05-25 |
| 修稿时间： | 2009-06-12 |
Application of D type Temporary Beam Reinforcement in Construction of Entrance Section of Yangziling Tunnel Crossing Underneath Existing Railway |
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| CHEN Wenzhen.Application of D type Temporary Beam Reinforcement in Construction of Entrance Section of Yangziling Tunnel Crossing Underneath Existing Railway[J].Tunnel Construction,2009,29(3):356-360. |
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| Authors: | CHEN Wenzhen |
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| Institution: | China Railway 20th Bureau Group Co., Ltd. |
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| Abstract: | During the construction of the entrance section of Yangziling tunnel on the second Xiangfan Chongqing railway line, D type temporary beam is used to consolidate the existing railway line when the tunnel crosses underneath. Taking the project as an example, the author presents the type selection and arrangement calculation of D type temporary beam and provides the technical details of the existing railway consolidation construction, including construction method, key construction points, monitoring and safety guarantee measures. |
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| Keywords: | D type temporary beamcrossing underneath existing railway railway reinforcement construction technology |
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