矿震识别及成因研究进展

Progress in identification and formation mechanism of mining seismicity

矿震主要受开采活动、矿山所处构造环境及区域构造应力场的影响。本文首先回顾了矿震的识别研究进展,然后从矿震震源机制、矿震与构造关系、矿震与瓦斯溢出、矿震与开采进程关系、矿震成因力学机制理论与实验研究等角度对矿震的成因研究进行了阐述,最后给出矿震识别及成因研究的进一步建议。矿震成因研究深化了对天然地震的认识。在研究矿震发生机理时,必须针对具体条件进行深入讨论与分析,应更多采用有关数学和力学手段,结合具体的生产地质条件和科学实验研究,有针对性地开展研究工作。可利用层析成像技术详细了解矿震演变过程,深化对地壳介质在应力作用下发生破裂或位错过程的认识,进而对矿震发震成因进行深入研究。

Mining seismicity is main1y affected by the mining activities,the structural environment and the regional structure stress field where the mine is located.This paper re-views the research progress of recognition of mine earthquake firstly,and then gives the re-search progress about formation mechanism of mining seismicity based on mine earthquake focal mechanism,the relationship between mining seismicity and structural relationship,gas overflow,mining process,mechanics theory and experimental research of the mine earth-quake cause.The further suggestions are given at last.Mine earthquake focal mechanism study deepens the understanding of natural earthquake.The specific conditions should be considered when the formation mechanism of mine earthquake.The mathematic and mechan-ic methods,combined with specific geological condition and scientific experiments should be taken in the future.Tomography technology can be used to study the evolution of mine earthquake,and it can deepen the understanding of crustal medium fracture or dislocation process under the action of stress,as a consequence to advance the study of mine earthquake focal mechanism further.