Estimation of Shear Wave Velocity for Near-surface Characterisation; Case Study: Ifako/Gbagada Area of Lagos State, S.W. Nigeria
B. Adegbola Rafiu, O. Badmus Ganiyu
Current Journal of Applied Science and Technology · pp. 831–840 · Published 12 Dec 2013
10.9734/BJAST/2014/6841Abstract
Near-surface shear–wave velocity profiles were acquired at four locations; these at strategic stations in Ifako/Gbagada a sub-urban area in Lagos State. The geophysical surveyed obtained the shear-wave velocity data using Multichannel Analysis of Surface Waves (MASW) technique. These data were acquired with a view to delineating the existing or potential hazards relating to subsidence, distressing and weakening of structures above the earth which is important to public safety, mitigation of property damage and to see the effectiveness of MASW technique in engineering site investigation. The processing method was fully automated by software called SURFSEIS. The study showed that the entire profiles depicted a very low shear-wave velocity (~80m/s to 160m/s) region down to 15m, a signature of saturated peaty/clayey formation. Thus, subsidence, distressing and weakening of structures were inferred to probably resulted from the loose nature of the subsurface soil.
Cited by 0
No indexed citations yet.
Related research
- Microbes, Mineral Elements and Geophysical Nature of Public Water Sources in Akungba-Akoko, Nigeria — shares topic coverage
- Geophysical Assessment of Groundwater Contamination at the Sabo Waste Dumpsite in Okitipupa, Southwestern Nigeria — shares topic coverage
- Simulating the Impact of Drought on California’s Central Valley Hydrology, Groundwater and Cropping — shares topic coverage
- Examination of Land Surface Deformation in the Eastern Tennessee Seismic Zone (ETSZ) Using Persistent Scatterers Interferometric Synthetic Aperture Radar (PSInSAR) — shares topic coverage
- Geo-sustainability Challenges and Remediation Strategies: A GIS-based Assessment of Sripur Coalmine Areas, West Bengal, India — shares topic coverage
Article metrics
Real usage data collected on this platform.
0
Page views
0
PDF downloads
0
Outbound clicks
0
Citations
Views by country
Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".
No views recorded yet.
Traffic sources
Referring site, by host.
No traffic recorded yet.
Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.