| 高应力硬岩板裂破坏的研究现状与展望 |
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| 引用本文： | 李地元,李夕兵.高应力硬岩板裂破坏的研究现状与展望[J].矿业研究与开发,2011(5):82-86. |
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| 作者姓名： | 李地元 李夕兵 |
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| 作者单位： | 中南大学资源与安全工程学院; |
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| 基金项目： | 国家自然科学基金项目(50934006,11102239); 国家重点基础研究发展计划项目(2010CB732004); 中南大学科技前沿资助计划(2010QZZD001),中南大学自由探索计划(2011QNZT083)联合资助项目 |
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| 摘 要： | 在深部高地应力硬岩开采过程中,经常可以观测到与开挖面基本平行的板裂破坏,这种破坏形式不同于剪切破坏,目前已引起国内外学者的广泛关注。通过工程现场高地应力硬岩板裂破坏的实例分析,观察到硬岩的板裂、片帮、V形槽、岩芯饼化等张性破坏特征,并对高应力硬岩的理论和试验研究现状进行了论述,给出了目前高应力硬岩板裂破坏的工程判据曲线,最后对硬岩板裂破坏的进一步研究工作进行了展望。
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| 关 键 词： | 高地应力 硬岩 板裂破坏 片帮 张性破坏 |
Advance and Prospect of Researches on Spalling Failure of Highly-stressed Hard Rock |
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| LI Diyuan,LI Xibing.Advance and Prospect of Researches on Spalling Failure of Highly-stressed Hard Rock[J].Mining Research and Development,2011(5):82-86. |
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| Authors: | LI Diyuan LI Xibing |
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| Affiliation: | LI Diyuan,LI Xibing(School of Resources and Safety Engineering,Central South University,Changsha,Hunan 410083,China) |
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| Abstract: | In excavation of highly-stressed rock mass at depth,rock slabbing parallel to the excavation surface has been observed frequently.Rock spalling failure is different from its shear failure,and has drawn many attentions from oversea and domestic scholars now.Through the in-site investigation on failure processes of highly-stressed hard rocks,some typical extension failure modes such as spalling,slabbing,V-shape notches and core-disking have been observed.In this paper,the theoretical and experimental studies ... |
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| Keywords: | High in-site stresses Hard rock Spalling Slabbing Extension failure |
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