Research on mine acoustic wave transmission technology

2019 5th International Conference on Energy Materials and Environment Engineering

能源学;生态环境科学

Gao, Jun^1^2 ; Ma, Hongwei^1 ; Shi, Zhijun^2

School of Mechanical Engineering, Xi'An University of Science and Technology, Xi'an, Shaanxi

710054, China^1

CCTEG xi'An Research Institute, Xi'an, Shaanxi

710077, China^2

关键词: Data transmission technologies;    Directional drilling technologies;    Drilling constructions;    Giant magnetostrictive materials;    Mine undergrounds;    Propagation characteristics;    Signal transmission;    Transmission schemes;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/295/3/032064/pdf
DOI  :  10.1088/1755-1315/295/3/032064

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In view of the present coal mine underground majority drilling construction still uses the non-directional drilling technology in present situation, it is proposed to use the propagation characteristics of sound waves in acoustic drill rods to study the mining data transmission technology based on acoustic wave transmission to make up for the existing drilling while drilling. Insufficient transmission mode by studying the propagation characteristics of sound waves in the drill pipe, revealing the law of amplitude attenuation and residual wave variation of the acoustic signal in the drill pipe, determining the signal transmission frequency and amplitude; considering the actual working conditions of the coal mine, designing a rare earth based the explosion-proof transducer of giant magnetostrictive material is used as the signal source. Finally, the reliability of the transmission scheme and signal source is verified by the signal transmission simulation test.