|
|||||
|
|
Estimation of near-surface geotechnical parameters using seismic measurements at the proposed KACST expansion site, Riyadh, KSA |
|
| Authors: | Hashim Almalki Abdel-Khalek El-Werr Kamal Abdel-Rahman |
| Institution: | 1. King Abdul Aziz City for Science and Technology, Riyadh, Saudi Arabia 2. Geophysics Department, Faculty of Science, Ain Shams University, Cairo, Egypt 3. National research Institute for Astronomy and Geophysics, Helwan, Cairo, Egypt |
| Abstract: | Eight shallow seismic refraction profiles were conducted at the proposed KACST expansion site, northwest of Riyadh, to estimate the near-surface geotechnical parameters for construction purposes. Both compressional (P) and shear (S) waves were acquired, processed, and interpreted using “time-term” technique which is a combination of linear least squares and delay time analysis to invert the first arrivals for a velocity section. The most important geotechnical near-surface parameters such as stress ratio, Poisson’s ratio, material index, concentration index, N value, and foundation material-bearing capacity are calculated. The results of these seismic measurements were compared with the results of borehole report in the project area in terms of number of layers, the lithological content, thicknesses, and N values of rock quality designation. A good matching between the results was observed particularly at the sites of boreholes. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |