岩体中应力波传播衰减规律研究进展

Research progress of stress wave propagation attenuation law in rock mass

为揭示地质构造变化或爆破等产生的应力波在不同影响因素条件的衰减机制,学者们借助位移不连续法和等效连续介质法等理论方法,针对完整传播过程的入射、传播和透射3个不同阶段,开展了应力波传播衰减规律影响的研究。研究结果表明波形、岩体性质和节理性质均会对其衰减特性产生显著影响。总结以上研究方法,讨论各方法之间的联系和异同点,在此基础上提出亟待解决的问题和研究方向,为充分了解应力波传播过程中的衰减变化规律、完善波动理论和提高实际工程安全性提供参考。

In order to reveal the attenuation mechanism of stress waves produced by geological structure changes or blasting under different influencing factors,with the help of displacement discontinuity method and equivalent continuum method,scholars have studied the influence of stress wave propagation attenuation law on the incident,propagation and transmission stages of the complete propagation process.The study resultsshow that,waveforms,rock mass properties and joint properties all have significant effects on its attenuation characteristics.This review summarizesthe above research methods,discuss the similarities and differences between them,and put forward some urgent problems on the basis of this.This studyprovides a reference for fully understanding the attenuation law in the process of stress wave propagation,improving the wave theory and improving the safety of practical engineering.