矿山微震震源机制的初步研究

A Preliminary Research on Microseism Source Mechanism in Mines

矿山微震震源机制是揭示和认识矿震发生机理,从事矿山微震监测预报、矿震灾害防治的基础和前提,也是从事矿震研究的理论基础之一。根据完整岩石破裂机理,从刚度理论的角度论证了岩石动力破坏的理论条件;在总结矿山常见的岩体破坏类型的基础上,对几种基本的矿震机制进行了全面的论述。

mechanism of microseism source induced by mining is essential to and prerequisite for discovering and understanding the occurring reasons of mining seismicity, carrying out the monitoring and forecasting of mining microseism, and prevention and control of mining seismic hazards. Meanwhile, mechanism of mining microseism source also is one of theoretical foundations for researching seismic events induced by mining. According to fracturing mechanism of intact rock, theoretical condition for dynamic failure of rock is demonstrated by use of stiffness criterion. Based on types of rockmass failure occurring commonly in mines, up which the authors summed, several types of main mining seism mechanisms are described completely.