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| 桃树坪隧道富水未成岩粉细砂岩层施工技术探讨 | |
| 引用本文： | 李世才,刘仲仁,郑文筠.桃树坪隧道富水未成岩粉细砂岩层施工技术探讨[J].现代隧道技术,2011,48(2):120-124,127. |
| 作者姓名： | 李世才 刘仲仁 郑文筠 |
| 作者单位： | 1. 中铁二十一局集团有限公司兰渝铁路项目部,兰州,730000 2. 兰渝铁路有限责任公司,兰州,730050 3. 中铁十八局集团兰渝铁路工程指挥部,甘肃武都,746000 |
| 摘 要： | 富水未成岩粉细砂岩层在国内隧道施工中极为少见,该岩性在隧道开挖后极不稳定,呈流塑状,极易出现溜塌现象,造成初期支护变形侵限甚至大范围坍塌,会严重影响到工程质量、安全、工期及成本。文章结合兰渝铁路LYS-7标段桃树坪隧道工程概况、施工方法、存在的问题及采取的处理措施,就富水未成岩粉细砂岩层中的隧道施工技术做了进一步分析和探讨。 |
| 关 键 词： | 隧道施工 软弱围岩 施工方法 加固措施 |
Discussion on the Construction Techniques of Taoshuping Tunnel in Immature Fine Sandstone Stratum with Rich Water |
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| Li Shicai,Liu Zhongren,Zheng Wenjun.Discussion on the Construction Techniques of Taoshuping Tunnel in Immature Fine Sandstone Stratum with Rich Water[J].Modern Tunnelling Technology,2011,48(2):120-124,127. | |
| Authors: | Li Shicai Liu Zhongren Zheng Wenjun |
| Institution: | Li Shicai1 Liu Zhongren2 Zheng Wenjun3(1 Project Department of Lanzhou-Chongqing Railway,China Railway No.21 Construction Bureau Group Co.,Ltd.,Lanzhou 730000,2 Lanzhou-Chongqing Railway Co.,Lanzhou 730050,3 Project Department of Lanzhou-Chongqing Railway,China Railway No.18 Construction Bureau Group Co.,Ltd,Wudu 746000) |
| Abstract: | It is very seldom for a tunnel to encounter the immature fine sandstone stratum with rich water,of which the lithology is extremely unstable after tunnel excavation.This paper analyzes and discusses the construction techniques of Taoshuping tunnel Lot LYS-7 on Lanzhou-Chongqing Railway embedded in fine sandstone stratum with rich water in terms of the project profile,construction method,existing problems and countermeasures. |
| Keywords: | Tunnel construction Soft rock mass Construction method Reinforcement measures |
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