英国物理学会
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作者:Enyuan Wang , Rongxi Shen ...
来源:[J].Journal of Geophysics and Engineering, 2016, Vol.13 (4)IOP
摘要:To study the near-field seismic impact of coal fractures in stress concentration zones, we established a source generation model based on finite dislocation source theory and dynamic fracture mechanics, derived an analytical expression for near-field seismic displacements caused ...
作者:Enyuan Wang , Dazhao Song ...
来源:[J].Journal of Geophysics and Engineering, 2017, Vol.14 (4)IOP
摘要:In order to quantitatively study the relationship between the disturbance stress of coal mine roadways and the electromagnetic radiation (EMR) of rocks, and further evaluate their internal stress distributions, we first examined the characteristics of EMR signals emitted fro...
作者:Enyuan Wang , Zhentang Liu ...
来源:[J].Journal of Geophysics and Engineering, 2017, Vol.14 (6)IOP
摘要:An accurate and non-destructive evaluation method for the hydraulic measure impact range in coal seams is urgently needed. Aiming at the application demands, a theoretical study and field test are presented using the direct current (DC) method to evaluate the impact range of coal...
作者:Enyuan Wang , Yunpei Liang ...
来源:[J].Journal of Geophysics and Engineering, 2018, Vol.15 (1)IOP
摘要:Using a portable microseismic monitoring instrument, we monitored blast waves at different distances from the blast center and analyzed their spectra, wavelet packet energies, and fractal characteristics. The results show that with increasing blast–center distance, the main ...
作者:Enyuan Wang , Dazhao Song ...
来源:[J].Journal of Geophysics and Engineering, 2018, Vol.15 (3)IOP
摘要:Hydraulic flushing in gas predrainage is widely used, but the hydraulic-flushing effect is evaluated in a traditional way, by determining the desorption volume, moisture content, gas drainage rate and other conventional indices. To verify the rationality and feasibility of the mu...
作者:Enyuan Wang , Quan Lou ...
来源:[J].Journal of Geophysics and Engineering, 2018, Vol.15 (1)IOP
摘要:An electric potential (EP) can be generated during the failure process of coal and rock. In this article, a similar physical model of coal rock was built and the characteristics of the EP responding to the process of coal mining were studied. The results showed that, at the early...
作者:Xiaofei Liu , Enyuan Wang
来源:[J].Journal of Geophysics and Engineering, 2018, Vol.15 (3)IOP
摘要:A rockburst is a dynamic disaster that occurs during underground excavation or mining which has been a serious threat to safety. Rockburst prediction and control are as important as any other underground engineering in deep mines. For this paper, we tested electromagnetic radiati...
作者:Enyuan Wang , Xueqiu He ...
来源:[J].Journal of Geophysics and Engineering, 2018, Vol.15 (4)IOP
摘要:This paper presents an electromagnetic radiation-based method to qualitatively assess mine-induced stress field at the longwall face. We first analyze the correlation between electromagnetic (EM) signals and stress, and then measure the signals and drilling bits in both the strik...
作者:Biao Kong , Zenghua Li , Enyuan Wang
来源:[J].Journal of Geophysics and Engineering, 2018, Vol.15 (1)IOP
摘要:This paper examines the differences in the thermal mechanical properties and acoustic emission (AE) characteristics during the deformation and fracture of rock under the action of continuous heating and after high-temperature treatment. Using AE 3D positioning technology, the dev...

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