工矿自动化2026，Vol.52Issue(2)：34-41,8.DOI:10.13272/j.issn.1671-251x.2025120032
基于双源CT联合反演的深部大巷煤柱冲击危险区域探测
Detection of rock burst risk areas m coal pillars of deep roadways based on joint inversion of dual-source CT
摘要
Abstract
Seismic wave CT inversion technology is an important method for rock burst hazard prediction,as well as routine rock burst prevention monitoring and effectiveness evaluation.However,in practical applications,active CT inversion has high implementation costs,cannot achieve continuous real-time monitoring,and is limited in large-scale detection,making it difficult to dynamically track stress changes.Passive CT inversion suffers from large errors in source location and low resolution,and the quality of tomographic imaging is constrained by the frequency and energy of natural microseismic events.To address this problem,a joint inversion strategy based on active-passive dual-source CT suitable for predicting rock burst hazards in coal pillars of deep roadways is proposed.First,active CT detection was implemented by arranging artificial seismic sources and receiver arrays,and a high-precision three-dimensional initial velocity model was obtained using the travel-time tomography method.Based on the active detection,the passive seismic sources recorded by the microseismic monitoring system during the subsequent time period,along with their ray travel-time information,were combined to form the joint inversion dataset.The high-precision three-dimensional initial velocity model obtained from active CT inversion was used as the initial model for the joint inversion.Travel-time tomography was performed again.The rock burst risk zones in the coal pillars were predicted according to the inversion results.An engineering application was carried out at the working face 7305 of Zhaolou Coal Mine,and the inversion results of active CT,passive CT,and active-passive dual-source joint CT were comparatively analyzed.The results showed that the dual-source CT joint inversion strategy effectively complemented the coverage blind zones of a single method and improved the identification accuracy of high-stress zones.Verification results based on microseismic events showed that more than 80％of the seismic sources were located within the high-velocity zones identified by the dual-source CT inversion,demonstrating the feasibility and accuracy of this strategy.关键词
深部大巷煤柱/冲击地压/震动波层析成像/震动波CT反演/主被动双源联合反演/冲击危险性预测Key words
coal pillar of deep roadway/rock burst/seismic wave tomography/seismic wave CT inversion/active-passive dual-source joint inversion/rock burst hazard prediction分类
矿业与冶金引用本文复制引用
李欢,暴晓庆,刘舜,孔震,袁腾飞,边疆,蔡武..基于双源CT联合反演的深部大巷煤柱冲击危险区域探测[J].工矿自动化,2026,52(2):34-41,8.基金项目
国家自然科学基金项目(52374101) （52374101）
江苏省国际科技合作/港澳台科技合作计划项目(重点国别产业技术研发合作项目)(BZ2024024). （重点国别产业技术研发合作项目）
