Blasting analogical experiment study on the vibration effects of rock burst in coal roadway

被引：0

作者：

Gao, Ming-Shi ^{[1
,2
]}

Zhao, Guo-Dong ^{[3
]}

Liu, Bo-Tao ^{[4
]}

Zhao, Yi-Chao ^{[1
,2
]}

Zhang, Ming-Hua ^{[4
]}

机构：

[1] School of Mines, China University of Mining and Technology, Xuzhou 221116, China

[2] Key Laboratory of Deep Coal Resource Mining, Ministry of Education of China, China University of Mining and Technology, Xuzhou 221116, China

[3] China Coal Technology and Engineering Group, Beijing 100013, China

[4] Yongcheng Coal and Electricity Holding Group Co., Ltd., Yongcheng 476600, China

来源：

Meitan Xuebao/Journal of the China Coal Society | 2014年 / 39卷 / 04期

关键词：

Coal roadway - Destructive effects - Experiment study - Propagation effect - Response characteristic - Roadway surrounding rock - Seismic source - Vibration effect;

D O I：

10.13225/j.cnki.jccs.2013.0724

中图分类号：

学科分类号：

摘要：

Using TDS-6 microseismic monitoring system, through the in-situ blasting analogical test in roadway, the action effects of shock wave on roadway surrounding rock and the response characteristics in different sections were studied. The results show that: (1) The shock wave attenuates exponentially as E=E0e-ηl with the distance increase to seismic source, that is, the explosion shocks violently at the beginning and attenuates quickly, the amplitude decreases significantly after 20 meters and becomes very weak after 30 meters; (2) The response characteristics of roadway surrounding rock differ significantly in different locations of the same section, that is, the floor is suffered most seriously, the two sides take the second place, and the roof and the humeral angles are the worst. It shows that rock burst just have destructive effect on the coal rock near to the seismic source, and on the same section but different locations the characteristics of the response to the shock wave in roadway surrounding rock is different.

引用

页码：637 / 643

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