| 某铁路运营隧道溶洞强化治理设计及施工 |
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| 引用本文： | 刘胜东,孟国基.某铁路运营隧道溶洞强化治理设计及施工[J].隧道建设,2011,31(2):228-234. |
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| 作者姓名： | 刘胜东 孟国基 |
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| 作者单位： | 中铁隧道股份有限公司,郑州,450003 |
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| 摘 要： | 借助某运营铁路隧道溶洞的强化治理设计及施工,重点阐述减震动爆破技术在近接运营正洞的高位引水支洞施工中的应用,强调高位引水系统布设及下向深孔注浆充填加固是运营隧道溶洞强化治理的关键,说明运营隧道在遭遇到较大的岩溶水害时,通过修建具有较大坡度的高位引(泄)水支洞及利用大直径钻孔连接正洞溶腔,以排泄正洞二次衬砌外周边的高压岩溶水及充填物,来达到降低岩溶水对正洞衬砌结构的高压作用,从而恢复溶洞段运营正洞衬砌结构体系工作环境,确保运营隧道衬砌结构安全。
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| 关 键 词： | 运营隧道 溶洞 强化治理 减震爆破 高位引水支洞 |
| 收稿时间： | 2011-02-28 |
Design and Construction of Aggressive Treatment of Karst in an Operating Railway Tunnel |
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| LIU Shengdong,MENG Guoji.Design and Construction of Aggressive Treatment of Karst in an Operating Railway Tunnel[J].Tunnel Construction,2011,31(2):228-234. |
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| Authors: | LIU Shengdong MENG Guoji |
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| Institution: | LIU Shengdong,MENG Guoji(China Railway Tunnel Stock Co.,Ltd.,Zhengzhou 450003,China) |
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| Abstract: | The application of vibration-minimizing blasting technology in the construction of a high-elevation diversion tunnel adjacent to an operating main tunnel is expounded.It is emphasized that the layout of the high-elevation diversion system and the down-ward deep hole grouting are key factors for the aggressive treatment of the karst.The study shows that the service conditions of the lining system of the operating tunnel can be recovered and the safety of the lining structure can be guaranteed by building a diversion tunnel at higher elevation and drilling large-diameter boreholes from the diversion tunnel to release the karst water and filling materials. |
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| Keywords: | operating tunnel karst cave aggressive treatment vibration-minimizing blasting water diversion tunnel at higher elevation |
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