Study on energy band characteristic of microseismic signals in water inrush channel
作者: Shuai ChengShu-cai LiLi-ping LiShao-shuai ShiZong-qing ZhouJing Wang
作者单位: 1Geotechnical and Structural Engineering Research Center, Shandong University, No.17923, Jingshi Road, Jinan, Shandong, People’s Republic of China
刊名: Journal of Geophysics and Engineering, 2018, Vol.15 (5)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1742-2140/aaba28
原始语种摘要: In this paper the mechanism of water inrush disaster is analyzed, and the correlation between the evolution law of water inrush channel and microseismic (MS) monitoring in prevention structure is established. The main MS events include water and rock mass impact, filling and rock impact in the water inrush channel. The idea of positioning the water inrush channel is presented by analyzing the filling and rock impact MS signal. A large model test restores the environment of various water inrush channels. The MS technique is used to monitor the water inrush channels in the test. Wavelet packet theory is used to decompose the MS signals of water inrush channel. The result indicates that the background noise frequency is 0–1 kHz and the effective signal frequency range is above 1250 Hz. The...
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  • inrush 涌入
  • water 
  • microseismic 微震的
  • energy 能量
  • channel 槽水道
  • monitoring 监视
  • packet 
  • wavelet 波涟
  • decompose 分解
  • paper