The Application of HVSR in the Shallow Geological Exploration and Detection of Urban
In recent years,in the process of urban underground space development and utili-zation,how to overcome the problem of poor exploration and detection results caused by conventional geophysical exploration methods under limited site conditions and strong inter-ference is calling for immediate attention.The micro motion H/V spectral ratio detection method has the advantages of strong site adaptability,anti-interference,fast and convenient construction,and is a supplementary means of urban geophysical detection.In order to ex-plore the effectiveness and characteristics of this method in urban shallow geological explora-tion and underground anomaly detection,this paper carried out forward simulation of H/V spectral ratio method for different underground rock and soil layer structures and under-ground anomaly bodies,analyzed and summarized the variation patterns of H/V spectral ra-tio of underground anomaly bodies in different rock and soil layer structures.On the basis of forward simulation,the comparison between the physical exploration results of the measured micro motion H/V spectral ratio method and geological data verification shows that the micro motion H/V spectral ratio method has a certain exploration effect in urban shallow geological exploration and detection,especially in identifying underground disease bodies such as voids,solitary stones,loose bodies,and water rich areas in the underground soil layer,Which pro-vides a fast and accurate supplementary solution for shallow geological exploration and un-derground disease detection in urban environments with strong background noise.
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