Abstract
The horizontal-to-vertical spectral ratio (HVSR) has been extensively used in site characterization utilizing recordings from microtremor and earthquake in recent years. This method is proposed based on ground pulsation, and then it has been applied to both S-wave and ambient noise, accordingly, in practical application also different. The main applications of HVSR are site classification, site effect study, mineral exploration, and acquisition of underground average shear-wave velocity structure. In site response estimates, the use of microtremors has been introduced long ago in Japan, while it has long been very controversial in this research area, as there are several studies reporting difficulties in recognizing the source effects from the pure site effects in noise recordings, as well as discrepancies between noise and earthquake recordings. In practice, the most reliable way is the borehole data, and the theoretical site response results were compared with the HVSR using shear wave to describe site response. This paper summarizes the applications of the HVSR method and draws conclusions that HVSR has been well applied in many fields at present, and it is expected to have a wider application in more fields according to its advantages.
Highlights
The horizontal-to-vertical spectral ratio (HVSR) technique we normally referred to is a method to retrieve information about the shallow-subsoil seismic properties, by single station measurements carried out on the Earth’s surface, which are of great engineering interest
Based on a lot of research, the basic principle of HVSR method can be summarized as follows: when the site can be assumed to be relatively hard and flat or an ideal site for bedrock, it can be assumed that the site theoretically will not amplify the site effect on horizontally or vertically within a specific frequency band, that is, the horizontal and vertical vibrations should be roughly the same within a certain frequency range, which is verified by the ground pulsation data
Satohetal (2001) compared the method HVSR with other traditional methods; the results show that the HVSR technology can effectively determine the predominant frequency of the site under the ground motion, but there is a great difference between HVSR and other methods in evaluating the site amplification [18]
Summary
The horizontal-to-vertical spectral ratio (HVSR) technique we normally referred to is a method to retrieve information about the shallow-subsoil seismic properties, by single station measurements carried out on the Earth’s surface, which are of great engineering interest This approach was proposed by Nakamura [1] for site effect research, which overcome the difficulties of traditional using a reference site. With the technical progress of digital strong vibration observation instrument, more and more high-quality strong vibration records are collected It seems that the method of HVSR since was first proposed, it has been extended from ground pulsation to earthquake recordings and strong vibration recording, from Fourier amplitude to velocity response spectrum. These differences in the H/V curve modeling may have an impact on the results of inversion programs used to speculate the subsoil formation profile from tentative measurements, as HVSR is clear in theory and convenient in applications, which brings high heat in recent years
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
