| 隧道掘进爆破破岩数值模拟及应用研究 |
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| 引用本文： | 孙宝平,高文学,周世生.隧道掘进爆破破岩数值模拟及应用研究[J].北京理工大学学报,2018,38(10):1025-1029,1036. |
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| 作者姓名： | 孙宝平 高文学 周世生 |
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| 作者单位： | 首都经济贸易大学 安全与环境工程学院,北京100070;城市群系统演化与可持续发展的决策模拟研究北京市重点实验室,北京100070;北京工业大学 建筑工程学院,北京,100022;北京市政路桥股份有限公司,北京,100086 |
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| 基金项目： | 北京市教育委员会科学技术研究计划项目（KM201710038002）；安全生产重特大事故防治关键技术科技项目（BEIJING-0002-2018AQ） |
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| 摘 要： | 为研究隧道掘进多孔毫秒延期爆破条件下的岩体破碎和爆破振动规律，采用完全重启动数值模拟技术和拉格朗日数值算法计算隧道掘进爆破破岩过程，得到了岩体特征点的振动速度，并将数值模拟评估的爆破方案应用于工程实践，数值模拟与工程实践结果比较吻合。结果表明，联合完全重启动数值模拟技术和拉格朗日算法能够模拟隧道破岩的物理力学过程。
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| 关 键 词： | 隧道掘进 毫秒延期爆破 数值模拟 爆破破岩与振动 |
| 收稿时间： | 2017/6/17 0:00:00 |
Study on Numerical Simulation and Application of Blasting of Tunnel Excavation |
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| SUN Bao-ping,GAO Wen-xue and ZHOU Shi-sheng.Study on Numerical Simulation and Application of Blasting of Tunnel Excavation[J].Journal of Beijing Institute of Technology(Natural Science Edition),2018,38(10):1025-1029,1036. |
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| Authors: | SUN Bao-ping GAO Wen-xue and ZHOU Shi-sheng |
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| Institution: | 1. School of Safety and Environmental Engineering, Capital University of Economics and Business, Beijing 100070, China;2. Beijing Key Laboratory of Megaregions Sustainable Development Modeling, Capital University of Economics and Business, Beijing 100070, China;3. College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100022, China;4. Beijing Roads and Bridges Construction Group Corporation Limited, Beijing 100086, China |
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| Abstract: | To investigate fragmentation of rock and vibration of millisecond delay under multi-hole blasting, full restart method of numerical simulation and Lagrangian formula were taken to simulate the fragmentation of rock and the vibration of tunnel excavation. The vibration velocity of the characterized place in the rock was attained. The results of numerical simulations showed agreement with experiments. The results indicate that combining the full restart method of numerical simulation and Lagrangian formula could simulate the vibration and fragmentation of rock blasting. |
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| Keywords: | tunnel excavation millisecond delay blasting numerical simulation fragmentation and vibration of blasting |
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