DOI: 10.11799/ce202312006
Improvement of the error of hypocenter height based on surface-underground microseismic monitoring technology
WANG Chuanpeng
Abstract：As all the microseismic monitoring stations are located in the same horizontal plane for the near horizontal coal seam,the hypocenter height error is large,which can not meet the requirements of the monitoring.From the perspective of source solving partial differential derivatives,the mechanism of large error in hypocenter height of horizontal coal seam is analyzed theoretically,and then the concept and implementation method of microseismic joint monitoring technology of the surface-underground are proposed aiming at the above problems.The layered wave velocity model of ground station is studied,and the best P-wave velocity is obtained by the inversion of the blasting event.Finally,by analyzing microseismic joint monitoring data of Menkeqing Coal Mine and Dahaize Coal Mine,it is proved that the surface-underground microseismic joint monitoring technology has a good improvement effect on the error of the hypocenter height.
Keywords：microseismic monitoringsurface stationhypocenter heightpositioning accuracy
Publication Date：2023-12-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 28-33 )