The current rapid urbanization and underground development have brought challenges and good opportunities for the development of shallow seismic exploration technology.In this paper,the main advances made in shallow seismic exploration in cities in recent years have been introduced in terms of seismic exploration equipment,data acquisition,data processing,interpretation and their applications,which include the development of seismic land-streamer systems,wireless seismic data acquisition,vibroseis pseudo-random sweeps method,urban noise surface wave exploration technology and comprehensive data processing algorithms.Some conclusions have been reached:the Rayleigh wave constrained refraction P-wave tomography results or the joint inversion method can improve the accuracy of detection of urban underground "100-meter" space;using urban noise as a source,it can not only provide supplementary information that is important for the description of shallow geological features,but also meets the city's requirements for green and environmental protection;through the seismic land-streamer system,S-wave technology can play a more important role in urban shallow exploration.Some proposals for future development are put forward:First,to strengthen the research and development of key technologies and equipment for shallow seismic data acquisition in urban area;Second,to further develop and improve non-traditional (such as surface wave) seismic exploration methods,and to dig deeply into a large amount of useful information contained in seismic waves.
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