地球物理探测技术在岩土工程中的应用  

Application of Geophysical Exploration Technology in Geotechnical Engineering

作　　者：朱刚 Zhu Gang(The Seventh Corps of Non-ferrous Metals and Nuclear Industry Geological Exploration Bureau of Guizhou,Guiyang,Guizhou 550000)

机构地区：[1]贵州省有色金属和核工业地质勘查局七总队,贵州贵阳550000

出　　处：《工程技术研究》2022年第20期185-187,共3页Engineering and Technological Research

摘　　要：文章依托实际案例,对走时层析成像法、电阻率层析成像法和瞬态面波法的原理和优缺点以及应用条件进行了区分,基于此,对地球物理探测技术的局限性做了详细剖析。研究结果表明,过度收敛和实测误差对物探反演过程影响显著,会导致结果不唯一,因此工程中应对物探方法的反演结果保持谨慎态度,不可过分解读实测成果;地球物理探测方法存在违背反演基本假设的可能,测线规划时为增加物探成果的可信度,对地球物理探测结果进行三维模拟或选择降低空间效应的位置;电阻率层析成像法的分辨率随电阻率增加而增加,瞬态面波法的分辨率随深度增加而降低。Based on actual cases,this paper distinguishes the principles,advantages,disadvantages and application conditions of traveltime tomography method,electrical resistance tomography method and transient surface wave method.Based on this,the limitations of geophysical exploration technology are analyzed in detail.The results show that excessive convergence and measured error have significant impact on the geophysical inversion process,which will lead to non-unique results.Therefore,the inversion results of geophysical methods should be cautious in engineering,and the measured results should not be over-interpreted.geophysical exploration methods may violate the basic assumptions of inversion.In order to increase the reliability of geophysical exploration results,3D simulation of geophysical exploration results or selection of locations to reduce spatial effects are carried out in survey line planning.The resolution of electrical resistance tomography method increases with the increase of resistivity,and the resolution of transient surface wave method decreases with the increase of depth.

关 键 词：地球物理技术 走时层析成像法 电阻率层析成像法 瞬态面波法 

分 类 号：TU42[建筑科学—岩土工程]