基于地震折射波的近地表地下目标层析成像反演研究  

Inversion of Near-Surface Subsurface High Contrast Voids Using Seismic Refraction Tomography

作　　者：刘京生 温宏波 王家齐 苏俊 严一鸣 LIU Jingsheng;WEN Hongbo;WANG Jiaqi;SU Jun;YAN Yiming(Office of the Second Military Representative of the Army Equipment Department in the Beijing area,Beijing 100012,China;Directorate of Military Representation of the Army Equipment Department in Beijing,Beijing 100012,China;The Third Research Institute of China Electronics Technology Group Corporation,Beijing 100015,China;National Key Laboratory on Near-Surface Detection,Beijing 100072,China)

机构地区：[1]陆军装备部驻北京地区第二军事代表室,北京100012 [2]陆军装备部驻北京地区军事代表局,北京100012 [3]中国电子科技集团公司第三研究所,北京100015 [4]近地面探测全国重点实验室,北京100072

出　　处：《电声技术》2024年第12期22-27,共6页Audio Engineering

摘　　要：地震折射波勘探是利用折射波来研究近地表地下介质速度变化与地层界面结构的一种地球物理方法。基于高频射线理论,用地震记录中的折射波研究地下界面,给出两层到多层水平地层的折射波理论时距曲线计算方法,应用地震层析成像反演技术对地下横向速度变化介质进行反演成像,并以模型算例说明方法的有效性和实用性。Refractive seismic exploration is a geophysical method that utilizes refractive waves to study velocity changes in nearsurface subsurface media and geological interfaces.This paper will discuss the high-frequency ray theory of refractive waves and the theoretical time-distance curves of the refracted waves in two to multi-layer horizontal strata.Traveltimes tomography inversion of refractive waves is used to imaging subsurface transverse velocity-varying media.A simulating example is used to illustrate the validity and usefulness of the method.

关 键 词：折射波 层析反演成像 近地表地震勘探 

分 类 号：TB54[理学—物理]