摘要
基于节理岩石的超声波试验,探讨两条节理耦合作用对超声波波速的影响规律,建立超声波波速与两条节理倾角间的函数关系,以及与两条节理分形维数间的趋势曲面。研究表明:1)随着两节理维数增大,超声波波速随之减小,节理粗糙度对超声波存在显著阻碍作用,单一节理分形维数对超声波影响类似于两节理分形维数耦合作用情形。两节理分形维数对超声波影响作用存在主次,先作用超声波的节理对波速阻碍起主导作用,对波速影响更加显著。2)随着两节理倾角增大,超声波波速随之降低,三者间关系是非线性的,两节理对波速影响存在耦合作用,且影响取决于节理倾角的较大者,而不是倾角之和。
Based on ultrasonic testing of jointed rock,the influence of the coupling effect of dual joints on ultrasonic wave velocity was investigated,and a functional relationship between ultrasonic wave velocity and the inclination angles of the dual joints was established.A trend surface describing the relationship between wave velocity and the fractal dimensions of the dual joints was constructed.The study demonstrates that:(1)As the dimension of Joint 1 and Joint 2 increases,the ultrasonic wave velocity decreases,indicating that joint roughness significantly impedes ultrasonic wave propagation.The influence of a single joint dimension on wave velocity is similar to the coupled effect of dual joint dimensions.The dual joint dimensions exhibit a primary-secondary influence on wave velocity,where the joint that interacts with the ultrasonic wave first plays a dominant role in wave velocity reduction,exerting a more pronounced effect.(2)As the inclination angles of Joint 1 and Joint 2 increase,the ultrasonic wave velocity decreases nonlinearly,and the dual joints exhibit a coupled effect on wave velocity.This suggests that the wave velocity is determined by the larger of the dual joint inclination angles rather than the sum of the dual inclination angles.
作者
李业学
陈绪智
LI Yexue;CHEN Xuzhi(School of Civil Engineering and Architecture,Hubei University of Arts and Science,Xiangyang 441053,China;Hubei Industrial Construction Group Hanjiang Engineering Co.,Ltd.,Xiangyang 441021,China)
出处
《湖北文理学院学报》
2026年第2期73-77,共5页
Journal of Hubei University of Arts and Science
基金
湖北省自然科学基金创新发展联合基金重点项目(2022CFD009)。
关键词
超声波
波速
两条节理
分形维数
倾角
ultrasonic
wave velocity
dual joints
fractal dimension
inclination angle
