| 爆破荷载对隧洞围岩稳定的影响研究 |
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| 引用本文： | 卢珊珊,崔溦.爆破荷载对隧洞围岩稳定的影响研究[J].广东水利水电,2014(10). |
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| 作者姓名： | 卢珊珊 崔溦 |
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| 作者单位： | 1. 广州市水务规划勘测设计研究院,广东广州,510640
2. 天津大学水利工程仿真与安全国家重点实验室,天津,300072 |
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| 摘 要： | 该文以数值模拟为主要手段,研究隧洞爆破开挖施工引起的围岩动力响应及其对围岩稳定性的影响.研究表明,隧洞爆破开挖施工时,爆炸冲击荷载会在短时间内造成围岩的破坏,随后主要以爆破振动的形式作用于近区围岩.
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| 关 键 词： | 隧洞 爆破开挖 围岩稳定 |
Research on the Influence of Blasting Load on Stability of Tunnel Surrounding Rock |
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| Lu Shanshan and Cui Wei.Research on the Influence of Blasting Load on Stability of Tunnel Surrounding Rock[J].Guangdong Water Resources and Hydropower,2014(10). |
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| Authors: | Lu Shanshan and Cui Wei |
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| Affiliation: | Guangzhou City Planning Survey Design Research Institute,Guangdong,Guangzhou 510640,China and State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin Unversity, Tianjin 300072, China |
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| Abstract: | Blasting is the importand way in underground engineering excavation construction, but the shock and vibration effect caused by explosive energy while breaking rock can also lead to the damage of the surrounding rock, it has negative effects on completeness of surrounding rock and the safety of engineering. Based on the numerical simulation, the dynamic response of surrounding rock caused by tunnel blasting excavation has been studied, and the influence of blasting on the stability of surrounding rock has benn evaluated. It is shown that during the blasting excavation of tunnel, explosion shock load will lead to the destruction of surrounding rock in short time, then the surrounding rock is mainly influenced by blasting vibration. |
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| Keywords: | tunnel blasting excavation surrounding rock stability |
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