Development of Empirical Correlation Between Standard Penetration Test and Shear Wave Velocity

Autor: Tejas P. Thaker, Payal Mehta
Rok vydání: 2021
Předmět:
Zdroj: Lecture Notes in Civil Engineering ISBN: 9789813365636
DOI: 10.1007/978-981-33-6564-3_41
Popis: Bhuj 2001 earthquake was alarmed for the seismic hazard assessment of different regions of the country. Detailed geotechnical and geophysical study provide important inputs for the seismic microzonation study. In the present paper, the correlation has been developed between standard penetration test number and shear wave velocity for different categories of soil in Vadodara city. The shear wave velocity models have been obtained through multichannel analysis of surface wave (MASW), which is an effective technique for geophysical site characterization. The field program is set in 2 km × 2 km grid size covering 67 test locations in the entire Vadodara city. The test data are analyzed through the package of SeisImager/SW software. Further, 430 borelog data were collected from various private and government agencies for the investigation of soil properties. Normalized consistency ratio and residual plots have been generated for the validation of the predicted correlations. These correlations are also compared with the relations developed by other researchers. The capability of the proposed correlation is also checked by plotting the map of the scaled relative error versus cumulative frequency. It is found that developed correlations give good prediction performance. The proposed correlations will be the advantageous for the dense locations of the busy city where testing is not feasible and economical. These empirical relations will be further used for similar geotechnical and geological site conditions after proper validation. The proposed correlations can be further used for the ground response analysis and vulnerability assessment of the study region.
Databáze: OpenAIRE