CAJ | 학술논문

为了认识具有弱冲击倾向性砂岩的声发射特性，利用MTS815岩名力学测试系统、AE测试分析系统对永川煤矿须六段砂岩进行了测试。结果表明：砂岩受载过程的不同阶段产生的AE信号有较欠区剐；AE事件空间分布的变化反映了岩石受损伤后的破裂失稳过程；须六段砂岩存在Kaiser效应和Felicity效应。研究结论为应用AE监测技术预测、预报矿井岩石动力灾害提供了科学依据。
위료인식구유약충격경향성사암적성발사특성，이용MTS815암명역학측시계통、AE측시분석계통대영천매광수륙단사암진행료측시。결과표명：사암수재과정적불동계단산생적AE신호유교흠구과；AE사건공간분포적변화반영료암석수손상후적파렬실은과정；수륙단사암존재Kaiser효응화Felicity효응。연구결론위응용AE감측기술예측、예보광정암석동력재해제공료과학의거。
In order to understand the acoustic emission characteristics of weak impact-prone sandstone, experiments of T3 xj^6 sandstone in Yongchuan coalmine were tested by means of MTS815 rock testing system and AE testing system. Results of the tests indicated that there were large differences of the acoustic emission signals produced in dif- ferent stages of sandstone loading process. The variation of spatial distribution of AE events reflected the failure process of sandstone damaged. The Kaiser and Felicity effects existed in T3 xj^6 sandstone. The research provided a scientific basis for the prediction of rock dynamic disaster by using AE monitoring technology in coalmines.