物探与化探2018，Vol.42Issue(2)：398-404,7.DOI:10.11720/wtyht.2018.2.26
利用瑞利波广义S变换探测近地表裂缝
The application of generalized S-transform of Rayleigh waves to detecting near-surface fissures
摘要
Abstract
Ground fissures constitute a kind of geological disasters which not only cause direct damage to various buildings but also re-sult in a series of environmental problems.It is therefore an important task to detect the ground fissures effectively in many engineering projects.In this paper,an experimental research on using Rayleigh waves to detect ground fissures was conducted.The generalized S-transform was adopted to extract the arrival time of the diffracted Rayleigh waves from the ground fissure at a certain receiver in time-frequency domain.And then the arrival times were used to calculate the locations of the ground fissures.In this paper,two half-space fis-sure models and a real world data analysis were used to demonstrate the feasibility and effectiveness of detecting ground fissures with the generalized S-transform.The theoretical models and the real world example show that it is feasible and effective to use the generalized S-transform to detect ground fissures.关键词
地裂缝/瑞利波/广义S变换Key words
ground fissure/Rayleigh wave/generalized S-transform分类
天文与地球科学引用本文复制引用
邵广周,董晋,董兆堂..利用瑞利波广义S变换探测近地表裂缝[J].物探与化探,2018,42(2):398-404,7.基金项目
国家自然科学基金(41374145,41004043)、陕西省自然科学基金(2016JM4003)和长安大学中央高校基金(310826162006)联合资助 （41374145,41004043）
