| 浅埋暗挖地铁隧道施工监测方法 |
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| 引用本文： | 陈志,万文.浅埋暗挖地铁隧道施工监测方法[J].西部交通科技,2009(2):72-75. |
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| 作者姓名： | 陈志 万文 |
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| 作者单位： | 湖南科技大学土木工程学院,湖南湘潭,411201 |
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| 摘 要： | 文章以重庆市地铁一号线大坪车站临时施工便道为例，对在浅埋、软岩条件下既有隧道拆除采用工字钢支顶、风镐破岩，新建隧道采用台阶法环形开挖预留核心土、人工非爆破开挖的施工方法，通过现场监控量测，得出最大地表沉降仅为3.82mm，表明采用合理的施工方法可以减少地表沉降。
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| 关 键 词： | 地铁隧道 环形开挖预留核心土法 现场监测 地表沉降 |
Method of the Construction and Field Monitoring of Metro Tunnel with Shallow-buried Tunneling Method |
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| CHEN Zhi,WAN Wen.Method of the Construction and Field Monitoring of Metro Tunnel with Shallow-buried Tunneling Method[J].Western China Communication Science & Technology,2009(2):72-75. |
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| Authors: | CHEN Zhi WAN Wen |
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| Institution: | (School of Civil Engineering, Hunan University of Science ＆ Technotogy, Xiangtan, Hunan,411201) |
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| Abstract: | Based on the example of the temporary channel construction of no.1 metro line of Daping Subway Station in Chongqing,the article introduces the methods of supporting roof with l-steel and broking rock with pneumatic pick,to knock down the existing shallow-buried and soft-rock tunnel.Also the paper presents the methods of circular excavation step by step while some core soils are left and artificial non-blasting excavation in the new construction tunnel.Through field monitoring, the lar-gest ground surface settlement is only 3.82 mm.The deformation of ground surface can be controlled while the right construction methods are used, and the reference is provided to similar projects in the future. |
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| Keywords: | Metro tunnel The method of circular excavation with core soil Field monitoring Ground surface settlement |
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