| 暗挖车站上穿既有区间地层加固施工技术 |
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| 引用本文： | 王先堂.暗挖车站上穿既有区间地层加固施工技术[J].隧道建设,2006,26(4):46-48. |
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| 作者姓名： | 王先堂 |
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| 作者单位： | 中铁隧道集团二处有限公司 |
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| 摘 要： | 介绍北京地铁五号线东单站暗挖段下穿长安街，地面承受荷载大，且地下管线密集，与既有一号线结构间土层厚度仅为0.6m情况下，通过采取对既有线周边土体进行注浆加固、洞内施作预应力锚杆、施作大管棚注浆等施工措施，成功从地铁一号线东单至王府井既有区间上部穿过。
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| 关 键 词： | 暗挖车站 大管棚 既有区间 预注浆 锚杆加固 |
| 收稿时间： | 2006-05-23 |
| 修稿时间： | 2006-06-21 |
Ground Consolidation Technology for Mined Underground
Metro Station Located above Existing Running Tunnel |
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| WANG Xian-tang.Ground Consolidation Technology for Mined Underground
Metro Station Located above Existing Running Tunnel[J].Tunnel Construction,2006,26(4):46-48. |
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| Authors: | WANG Xian-tang |
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| Institution: | The 2nd Engineering Co., Ltd. of China Railway Tunnel Group |
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| Abstract: | The mined section of Dongdan station on line 5 of Beijing Metro crosses underneath Chang'an street, where there exist concentrated underground utility lines and the thickness of ground between the mined section of Dongdan station and the structure of the existing line 1 of Beijing Metro is only 0.6m. Consolidation grouting is conducted for the soils near the existing running tunnel, pre stressed rock bolts are installed inside the tunnel and pipe roof reinforcement and grouting are conducted, which ensures the successful construction of the mined section of Dongdan station that is located above the existing Dongdan～Wangfujing running tunnel of line 1 of Beijing Metro. |
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| Keywords: | mined underground Metro station huge pipe roof reinforcement existing running tunnel pre-grouting rock bolt reinforcement |
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