| 深部开采巷道软弱围岩塑性区和剪裂区研究 |
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| 引用本文： | 楼晓明. 深部开采巷道软弱围岩塑性区和剪裂区研究[J]. 福州大学学报(自然科学版), 2011, 39(2): 276-280 |
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| 作者姓名： | 楼晓明 |
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| 作者单位： | 福州大学紫金矿业学院; |
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| 基金项目： | 福建教育厅科研资助项目(JA09029); 福州大学科技发展基金资助项目(2008-XQ-20) |
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| 摘 要： | 考虑开挖二次应力场对圆形巷道软弱围岩的实际影响,基于双剪统一强度理论及力学原理,探讨了深部圆形巷道围岩塑性区应力及范围.考虑矿体回采爆破振动,对巷道软弱围岩弹性区域内产生的剪裂区应力进行了研究.最后,利用莫尔-库伦强度理论,推导了深部矿体回采爆破时巷道软弱围岩剪裂区范围,并对它进行了分析.
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| 关 键 词： | 塑性区 爆破振动 剪裂区 应力场 巷道 |
Study on the plastic zone and slip zone in the deep soft-weak rocks after excavation circular tunnel |
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| LOU Xiao-ming. Study on the plastic zone and slip zone in the deep soft-weak rocks after excavation circular tunnel[J]. Journal of Fuzhou University(Natural Science Edition), 2011, 39(2): 276-280 |
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| Authors: | LOU Xiao-ming |
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| Affiliation: | LOU Xiao-ming (College of Zijin Mining,Fuzhou University,Fuzhou,Fujian 350108,China) |
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| Abstract: | Considering the influence of redistribution stress field after excavation circular tunnel in the soft-weak rocks and based on the unified twin shear strength theory and mechanistic principles,the stress field and range of the plastic zone in the soft-weak surrounding rocks were investigated.Then,considering the influence of blasting vibration in mining,the slip zone stress field in the elastic area of soft-weak surrounding rocks was studied.Finally,the slip range in the soft-weak surrounding rocks was obtai... |
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| Keywords: | plastic zone blasting vibration slip zone stress field tunnel |
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