| 掏槽孔爆破引起的围岩动力响应研究 |
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| 引用本文： | 王建军,易长平,曹跃.掏槽孔爆破引起的围岩动力响应研究[J].爆破,2008,25(3). |
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| 作者姓名： | 王建军 易长平 曹跃 |
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| 作者单位： | 金堆城钼业股份有限公司,陕西,华县,714102;武汉理工大学资源与环境工程学院,湖北,武汉,430070 |
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| 摘 要： | 通过数值模拟,研究了掏槽孔起爆时开挖隧洞围岩的动力响应规律,得到了不同爆心距处围岩的峰值振速分布规律,以及爆破振动峰值振速在不同部位的衰减规律.研究结果与试验结果类似,说明应用数值模拟方法研究隧洞爆破开挖对开挖洞室的影响是可行的,所得结论可以作为实际工程的参考.
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| 关 键 词： | 掏槽孔爆破 开挖洞室 动力响应 |
Dynamical Responses of Surrounding Rock Mass Induced by Cuthole Blasting |
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| WANG Jian-jun,YI Chang-ping,CAO Yue.Dynamical Responses of Surrounding Rock Mass Induced by Cuthole Blasting[J].Blasting,2008,25(3). |
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| Authors: | WANG Jian-jun YI Chang-ping CAO Yue |
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| Affiliation: | WANG Jian-jun1,YI Chang-ping2,CAO Yue2(1.Jinduicheng Molybdenum Co Ltd,Huaxian 714102,China,2.School of Resources , Environment Engineering,Wuhan University ofTechnology,Wuhan 430070,China) |
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| Abstract: | Numical simulation method is empolyed to study the dynamical resopnses law of excavating tunnel induced by cuthole blasting,the distribution law of peak particle velocity(PPV)of surrounding rock mass in distance from blasting center is found,the PPV attenuation law in different part is also provided.The research results resemble the test results,which shows that it is feasible to study the infulence of blasting on excavating tunnel.The conclusion can be the reference for practice engineering. |
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| Keywords: | cuthole blasting excavating tunnel dynamical responses |
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