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有色金属(矿山部分):2019,71(6):13-18
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巷道围岩在爆破荷载下的反应谱特征研究
宋春辉11,2,3,4, 李祥龙1,21,2,3,4, 范天林31,2,3,4, 陈 浩31,2,3,4, 宋 飞41,2,3,4
(1.(1. 昆明理工大学,昆明650093;2. 云南省中-德蓝色矿山与特殊地下空间开发利用重点实验室,昆明650093;3. 玉溪矿业有限公司大红山铜矿,云南 玉溪653405;4. 四川路航建设有限责任公司,成都610000))
Response spectrum characteristics of roadway surrounding rock under blasting load
SONG Chunhui11,2,3,4, LI Xianglong1,21,2,3,4, FAN Tianlin31,2,3,4, CHEN Hao31,2,3,4, SONG Fei41,2,3,4
(1.(1.Kunming University of Science and Technology, Kunming650093,China;2.Yunnan Key Laboratory of Sino-German Blue Mining and Utilization of Special Underground Space, Kunming 650093, China;3.DahongshanCopper Mine, Yuxi Mining Co., Ltd., Yuxi Kunming 653405, China;4.Sichuan Luhang Construction Co., Ltd., Chengdu 610000, China))
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中文摘要: 为探究巷道围岩在井下爆破动荷载下的动态响应规律,采用MATLAB对振动测试数据进行处理,将导出的振速、位移、绝对加速度反应谱以及绝对加速度标准反应谱进行深入研究。研究结果表明:爆心距为185 m的速度反应谱在周期2 s内出现的峰值数多于爆心距为86 m的速度反应谱峰值数,爆心距为185 m出现的10 Hz以下的谐波分量多于爆心距为86 m,爆破作用对爆心距为185 m处围岩损伤影响更大;爆心距为185 m、阻尼比为0.05时放大系数为1,容易导致围岩的破坏损伤。研究结果对巷道围岩的支护具有指导意义。
中文关键词: 爆破振动  围岩  阻尼比  反应谱
Abstract:In order to study the dynamic response law of roadway surrounding rock under downhole blasting dynamic load, the vibration test data were processed by MATLAB, and the derived vibration velocity, displacement, absolute acceleration response spectrum and absolute acceleration standard response spectrum were studied in depth. The research results indicated that: the peak number of velocity response spectra with a detonation distance of 185m appeared in the period of 2 s, more than the peak number of velocity response spectra with a detonation distance of 86 m. The harmonic component below 10 Hz with a detonation distance of 185m was higher than that with a detonation distance of 86 m. The blasting effect showed a greater impact on the damage of surrounding rocks at blast center distance of 185 m. When the blasting distance was 185 m and the damping ratio was 0.05, the amplification factor was 1, indicating it easy to cause damage to the surrounding rock. The research can provide guiding significance for the surrounding rock support.
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基金项目:国家自然科学基金资助项目(51564027);北京理工大学开放基金项目(KFJJ15-14M)
Author NameAffiliation
SONG Chunhui1 (1.Kunming University of Science and Technology, Kunming650093,China
2.Yunnan Key Laboratory of Sino-German Blue Mining and Utilization of Special Underground Space, Kunming 650093, China
3.DahongshanCopper Mine, Yuxi Mining Co., Ltd., Yuxi Kunming 653405, China
4.Sichuan Luhang Construction Co., Ltd., Chengdu 610000, China) 
LI Xianglong1,2 (1.Kunming University of Science and Technology, Kunming650093,China
2.Yunnan Key Laboratory of Sino-German Blue Mining and Utilization of Special Underground Space, Kunming 650093, China
3.DahongshanCopper Mine, Yuxi Mining Co., Ltd., Yuxi Kunming 653405, China
4.Sichuan Luhang Construction Co., Ltd., Chengdu 610000, China) 
FAN Tianlin3 (1.Kunming University of Science and Technology, Kunming650093,China
2.Yunnan Key Laboratory of Sino-German Blue Mining and Utilization of Special Underground Space, Kunming 650093, China
3.DahongshanCopper Mine, Yuxi Mining Co., Ltd., Yuxi Kunming 653405, China
4.Sichuan Luhang Construction Co., Ltd., Chengdu 610000, China) 
CHEN Hao3 (1.Kunming University of Science and Technology, Kunming650093,China
2.Yunnan Key Laboratory of Sino-German Blue Mining and Utilization of Special Underground Space, Kunming 650093, China
3.DahongshanCopper Mine, Yuxi Mining Co., Ltd., Yuxi Kunming 653405, China
4.Sichuan Luhang Construction Co., Ltd., Chengdu 610000, China) 
SONG Fei4 (1.Kunming University of Science and Technology, Kunming650093,China
2.Yunnan Key Laboratory of Sino-German Blue Mining and Utilization of Special Underground Space, Kunming 650093, China
3.DahongshanCopper Mine, Yuxi Mining Co., Ltd., Yuxi Kunming 653405, China
4.Sichuan Luhang Construction Co., Ltd., Chengdu 610000, China) 
引用文本:
宋春辉1,李祥龙1,2,范天林3,陈 浩3,宋 飞4.巷道围岩在爆破荷载下的反应谱特征研究[J].有色金属(矿山部分),2019,71(6):13-18.
SONG Chunhui1,LI Xianglong1,2,FAN Tianlin3,CHEN Hao3,SONG Fei4.Response spectrum characteristics of roadway surrounding rock under blasting load[J].NONFERROUS METALS(Mining Section),2019,71(6):13-18.

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