| 大跨度高边墙地下洞室分层间隔施工方法 |
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| 引用本文： | 刘保国,徐干成.大跨度高边墙地下洞室分层间隔施工方法[J].岩土力学,2011,32(9):2759-2764. |
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| 作者姓名： | 刘保国 徐干成 |
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| 作者单位： | 1. 北京交通大学 土建学院，北京 100044；2. 空军工程设计研究局，北京 100068 |
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| 摘 要： | 结合某大垮度、高边墙地下洞室的施工实践，详细阐述了大洞室纵向预留隔层、隔层上中下同步开挖、最后清除隔层这一新的开挖方法施工全过程。通过数值模拟，对这一新的开挖方法与自上而下台阶式开挖方法引起围岩最大变形、围岩塑性破坏和锚杆轴力进行了对比分析，结果表明，新的开挖方法对围岩的扰动破坏更小。指出了采用这种新方法的适用条件。对于其他用途大跨高边墙地下洞室的施工具有一定的参考价值。
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| 关 键 词： | 大断面洞室 开挖方法 平行作业 围岩变形 |
| 收稿时间： | 2011-03-30 |
Layered interval excavation method for large span and high sidewall underground cavern |
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| LIU Bao-guo,XU Gan-cheng.Layered interval excavation method for large span and high sidewall underground cavern[J].Rock and Soil Mechanics,2011,32(9):2759-2764. |
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| Authors: | LIU Bao-guo XU Gan-cheng |
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| Institution: | 1. School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing 100044, China; 2. The Air Force Engineering Design and Research Institute, Beijing 100068, China |
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| Abstract: | The layered interval excavation method for a large span and high sidewall underground cavern is described in detail.Through numerical simulation,its feasibility is proved.A large span and high sidewall cavern construction practice is as follows;detailed large cavern reserved rock clapboard,upper,middle and bottom chamber between rock clapboard parallel excavation,and finally clear the rock clapboard full of this new method of construction of the excavation process.Through numerical simulation,the largest de... |
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| Keywords: | large section cavern excavation methods parallel operation surrounding rock mass deformation |
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