岩体中应力波传播规律研究方法进展  

Progress of methods for wave propagation across rock masses

作　　者：李建春 范立峰 李郑梁 LI Jianchun;FAN Lifeng;LI Zhengliang(Engineering Research Center of Safety and Protection of Explosion&Impact of Ministry of Education,Institute of Future Underground Space,Southeast university,211189 Nanjing,China;College of Architecture and Civil Engineering,Beijing University of Technology,100124 Beijing,China)

机构地区：[1]东南大学爆炸安全防护教育部工程研究中心和未来地下空间研究院,南京211189 [2]北京工业大学建筑与土木工程学院,北京100124

出　　处：《应用力学学报》2022年第5期845-858,共14页Chinese Journal of Applied Mechanics

基　　金：国家自然科学基金重点资助项目(No.41831281,42220104007);中央高校基本科研业务费资助项目(No.2242022k30054)。

摘　　要：应力波在岩体中传播规律的研究是分析工程岩体动力稳定性的基础。天然岩体中包含的大量节理对应力波的传播规律具有显著的影响。应力波在岩体中传播时会出现幅值的衰减以及波速的降低,在此过程中,节理在应力波的作用下会出现张开、闭合和滑移变形。目前,应力波在岩体中的一维和二维传播规律分析方法比较成熟,这些方法主要分为非连续介质方法与动态等效连续介质方法以及双尺度非连续耦合方法。借助这些方法,研究者们开展了线性和非线性节理对应力波传播规律影响的研究。本综述将详细地总结上述3种方法,探讨它们的优缺点,并提出值得进一步研究的问题。Studying stress wave propagation across jointed rock masses is essential for the stability of rock engineering.Rock masses in nature include many joints,which have great influence on stress wave propagation.During wave propagation across rock masses,both of the amplitude and speed of the wave attenuate.Meanwhile,the interaction between the stress wave and the joints usually results the joints open,close and slippery.Currently,some analytical methods have been successfully applied-for studying one-dimensional or two-dimensional wave propagation across rock joints.These analytical methods are divided into three types:the discontinuous medium method,the equivalent continuous medium methods and doublescale discontinuous method.Based on these two methods,the effect of linear and nonlinear joints on wave propagation has been studied effectively.The present paper is to introduce the discontinuous and equivalent continuous media methods,discuss their applicability,and suggest the further problems to study.

关 键 词：岩体 应力波 节理 位移不连续方法 等效介质方法 

分 类 号：P511.2[天文地球—地质学]