| 高速公路长大隧道软破围岩施工支护优化研究 |
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| 引用本文： | 李洋.高速公路长大隧道软破围岩施工支护优化研究[J].山西建筑,2009,35(7):321-323. |
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| 作者姓名： | 李洋 |
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| 作者单位： | 张石高速公路张家口管理处,河北,张家口,075000 |
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| 摘 要： | 采用三维数值模拟方法，对张石高速黑石岭分离式隧道施工过程中的软破围岩支护方案进行了优化分析研究，通过研究认为，采用优化支护方案后，隧道净空收敛值减少了60％，锚杆的数量减少且更加充分地发挥了锚杆的作用，围岩塑性区范围明显减小，增强了掌子面围岩的稳定性。
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| 关 键 词： | 隧道 软破围岩 支护 优化方案 |
The supporting optimized research on the long tunnel soft-fracture surrounding rock construction on highways |
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| LI Yang.The supporting optimized research on the long tunnel soft-fracture surrounding rock construction on highways[J].Shanxi Architecture,2009,35(7):321-323. |
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| Authors: | LI Yang |
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| Abstract: | The paper adopts the three-dimensional numerical simulation method and has a research on the optimized analysis of the supporting scheme for the soft-fracture surrounding rock in the construction process for the Heishiling separated tunnel on the Zhang-Shi highway.It is considered that the clearance convergence value in the tunnel reduced 60%,the number of bolts reduced and their roles were well exerted,and the plastic zone also decreased,while the stability of the tunnel face was increased,after the optimi... |
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| Keywords: | tunnel soft-fracture surrounding rock supporting optimized scheme |
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