| 平顶直墙暗挖隧道设计与施工关键技术 |
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| 引用本文： | 李冰,郝志宏,李松梅,杜玉峰.平顶直墙暗挖隧道设计与施工关键技术[J].隧道建设,2015,35(12):1295-1300. |
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| 作者姓名： | 李冰 郝志宏 李松梅 杜玉峰 |
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| 作者单位： | (1. 北京市轨道交通设计研究院有限公司, 北京 100068; 2. 北京市轨道交通 工程技术研究中心, 北京 100068） |
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| 基金项目： | 北京市科技计划资助课题（Z131100004513009） |
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| 摘 要： | 针对北京地区平顶直墙暗挖隧道土体开挖易坍塌、地表沉降量敏感的施工特点,通过对平顶直墙暗挖隧道设计与施工的技术特点进行分析,提出平顶直墙暗挖隧道的设计方法、施工原则与要求;通过对平顶直墙暗挖隧道初期支护断面划分、超前支护、工序转换以及特殊措施的分析总结,提出"优先墙柱二次衬砌法"与"中隔壁保留法"2种原则性平顶直墙暗挖隧道施工步序,并给出了3种常规条件下的典型施工步序,供设计与施工参考。
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| 关 键 词： | 平顶直墙 暗挖隧道 设计与施工 施工步序 |
| 收稿时间： | 2015-07-03 |
| 修稿时间： | 2015-09-19 |
Key Technologies for Design and Construction of Tunnels with Flat Roofs and Straight Walls |
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| LI Bing,HAO Zhihong,LI Songmei,DU Yufeng.Key Technologies for Design and Construction of Tunnels with Flat Roofs and Straight Walls[J].Tunnel Construction,2015,35(12):1295-1300. |
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| Authors: | LI Bing HAO Zhihong LI Songmei DU Yufeng |
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| Institution: | (1. Beijing Rail and Transit Design & Research Institute, Beijing 100068, China; 2. Beijing Rail and Transit Engineering Technology Research Center, Beijing 100068,China） |
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| Abstract: | In the construction of the mined tunnels with flat roofs and straight walls in Beijing, collapse and ground surface settlement may occur. In the paper, the technical difficulties in the design and construction of mined tunnels with flat roofs and straight walls are analyzed, the design method, construction principle and requirement for the mentioned tunnels are proposed, the sequential support, advance support, primary support, construction step conversion and special measures taken for the mentioned tunnels are summarized, and three typical construction sequences are proposed. |
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| Keywords: | mined tunnel with flat roof and straight wall design and construction construction steps |
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