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| 哈达铺隧道直立板岩大变形分析及控制施工技术 | |
| 引用本文： | 赵少强,林安宁,闫小军. 哈达铺隧道直立板岩大变形分析及控制施工技术[J]. 现代隧道技术, 2011, 48(2): 73-77 |
| 作者姓名： | 赵少强 林安宁 闫小军 |
| 作者单位： | 1. 中铁七局集团有限公司,郑州,450016 2. 兰渝铁路有限责任公司陇南建设指挥部,甘肃武都,746000 3. 中铁七局集团第三工程有限公司,西安,710000 |
| 摘 要： | 兰渝铁路哈达铺隧道穿越炭质板岩和碳质叶岩(局部还有千枚岩)地层,且岩层走向基本与隧道轴线平行,存在较大的水平应力,施工中出现了较大的收敛变形。文章介绍了哈达铺隧道直立板岩段的大变形情况,从水平应力、地下水、地应力、隧道断面形式等方面分析变形的原因,提出了采用大刚度支护、二次衬砌紧跟、监控量测等控制措施。 |
| 关 键 词： | 隧道施工 直立板岩 大变形 控制措施 水平应力 |
Large Deformation Analysis and Control for Vertically-oriented Slate in Hadapu Tunnel |
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| Zhao Shaoqiang,Lin Anning,Yan Xiaojun. Large Deformation Analysis and Control for Vertically-oriented Slate in Hadapu Tunnel[J]. Modern Tunnelling Technology, 2011, 48(2): 73-77 | |
| Authors: | Zhao Shaoqiang Lin Anning Yan Xiaojun |
| Affiliation: | Zhao Shaoqiang1 Lin Anning2 Yan Xiaojun3(1 China Railway No.7 Construction Bureau Group Co.,Ltd.,Zhengzhou 450016,2 Longnan Construction Headquarters of Lanzhou-Chongqing Railway Co.,Wudu 746000 3 The 3rd Engineering Co.,China Railway No.7 Construction Bureau Group,Xi'an 710000) |
| Abstract: | Hadapu tunnel on Lanzhou-Chongqing railway passes through carbonaceous slate and carbonaceous shale(with local phyllite),and the strike of surrounding rocks basically parallels with the tunnel axis.High convergence deformations occurred due to large horizontal stresses during the tunnel construction.The paper describes the large deformations on vertical slate sections in Hadapu tunnel,and analyses the causes involved in terms of horizontal stresses,underground water,geostatic stresses and section type of th... |
| Keywords: | Tunnel construction Vertical slate Large deformation Controlling measures Horizontal stress |
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