地震反射波法在隧道超前预报中的应用  

作　　者：潘纪顺[1] 张允涛 朱叶 张嘉乐 张鑫 朱瑞 

机构地区：[1]华北水利水电大学,郑州450045 [2]郑州市农业技术推广中心,郑州450011 [3]河南省水利勘测设计研究有限公司,郑州450016

出　　处：《科技创新与应用》2024年第15期167-170,共4页Technology Innovation and Application

摘　　要：该研究旨在探讨隧道开挖过程中使用地震反射波法技术的可行性,以预防不良地质条件引发的地质灾害。采用地震反射波法,通过观察地震波在隧道掌子面前方岩体内的传播情况,通过初至波拾取、速度分析、反射层提取等数据处理技术探测和描述岩体内的不良地质特征。研究结果表明,地震反射波法可有效探测掌子面前方不良地质体的位置,同时通过纵横波波速比得到探测区内的物性参数。因此,地震反射波法可作为一种有效的地质勘测工具,用于隧道施工前的地质预测。该研究针对锤击式震源进行探讨,其能够准确预测出隧道前方岩体完整性较差的区域分布情况,相较于其他震源,可提高勘探效率并降低探测成本。This study aims to explore the feasibility of using seismic reflection wave technology during tunnel excavation to prevent geological disasters caused by adverse geological conditions.By employing seismic reflection wave methods,this study examines the propagation of seismic waves within the rock mass in front of the tunnel face.Through data processing techniques such as first arrival wave picking,velocity analysis,and reflection layer extraction,the study detects and characterizes adverse geological features within the rock mass.The research findings indicate that seismic reflection wave technology can effectively detect the location of adverse geological formations in front of the tunnel face and obtain physical parameters within the survey area through the longitudinal and transverse wave velocity ratio.Therefore,seismic reflection wave technology can serve as an effective geological survey tool for geological prediction before tunnel construction.The study explores the use of a hammering seismic source,which accurately predicts the distribution of areas with poor rock integrity in front of the tunnel compared to other sources,leading to improved survey efficiency and reduced detection costs.

关 键 词：隧道 地震波 锤击震源 地球物理 超前预报 

分 类 号：U45[建筑科学—桥梁与隧道工程]