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研究岩石破裂过程中出现的各种物理效应,对了解固体破裂机制及地震发生时的相关现象具有重要意义。我们利用粒子探测方法在花岗岩破裂实验中首次记录到具有能量为MeV量级的电子发射。花岗岩样品采自郯庐断裂带怀远段。标本磨成长方体,尺寸分别为94.0×94.0×190及50.0×50.0×100mm~3。沿长轴加压,受压端面加工精度达0.05mm。实验用200吨压机,在应力达170MPa
Studying the various physical effects that occur during the rock failure process is of great significance for understanding the mechanism of solid rupture and the related phenomena when an earthquake occurs. We use the particle detection method for the first time in granite rupture experiments recorded with the energy of MeV electron emission. Granite samples taken from the Tan-Lu fault zone Huaiyuan section. The specimens were ground into cuboids with sizes of 94.0 × 94.0 × 190 and 50.0 × 50.0 × 100mm ~ 3, respectively. Pressure along the long axis, pressure end face machining accuracy of 0.05mm. Experiment with 200 tons press, the stress of 170MPa