CAJ | 학술논문

介绍了岩体介质中震动波的研究情况，根据弹性力学相关理论得到震动波在岩体介质中传播的波动方程，分析了影响其在岩体介质中传播的衰减因素，并选取浅层均质、无限大岩体（砂岩、花岗岩）作为试验研究对象，从幅值、频率两方面分析了震动波在无限大岩体中的传播规律。结果表明，震动波在单一岩性岩体中传播，信号幅值与其传播距离呈负指数关系衰减，衰减系数的大小与岩性有关，岩性越致密，衰减程度越低；频率是影响震动波衰减的主要因素，高频信号段衰减快，低频信号段衰减较慢。
개소료암체개질중진동파적연구정황，근거탄성역학상관이론득도진동파재암체개질중전파적파동방정，분석료영향기재암체개질중전파적쇠감인소，병선취천층균질、무한대암체（사암、화강암）작위시험연구대상，종폭치、빈솔량방면분석료진동파재무한대암체중적전파규률。결과표명，진동파재단일암성암체중전파，신호폭치여기전파거리정부지수관계쇠감，쇠감계수적대소여암성유관，암성월치밀，쇠감정도월저；빈솔시영향진동파쇠감적주요인소，고빈신호단쇠감쾌，저빈신호단쇠감교만。
Introduced the study of vibration wave in the rock medium and deduced the vibration wave formula in rock body based on some elasticity mechanics theory. The attenuation factor was studied in theory while the vibration wave spreads in rock body. Selecting the infinite rock medium including sand and granite which are most commonly encountered in the shallow surface as research objects, the tests researched vibration transmitting law in two aspects:the amplitude and frequency. The results show that, in the same rock, the vibration signal amplitude and its propagation distance can be in a negative exponent attenuation relation, the attenuation coefficient is related with lithology, and the dense rock has lower attenuation; frequency is the main factor affecting the attenuation, the high frequency signal attenuates quickly, and the low frequency attenuates slowly.