Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Active-Passive Array (1)
- Africa (1)
- Algorithms (1)
- Archaeology (1)
- Borehole Logs (1)
-
- Bridges (1)
- Cost Effectiveness (1)
- Database Systems (1)
- Dispersion (Waves) (1)
- Dispersion Curves (1)
- Eastern Hemisphere (1)
- Egypt (1)
- Estimation (1)
- Evaporation (1)
- Flooding (1)
- Floodplain (1)
- Geophysical Survey (1)
- Groundwater (1)
- Hydrogeophysics (1)
- Hydrology (1)
- Lithology (1)
- Missouri (1)
- North Africa (1)
- Phase Control (1)
- Phase Velocity (1)
- Rayleigh waves (1)
- Sandstone (1)
- Seismology (1)
- Shear Waves (1)
Articles 1 - 2 of 2
Full-Text Articles in Entire DC Network
Active-Passive Array Surface Wave Inversion And Comparison To Borehole Logs In Southeast Missouri, Alexei A. Malovichko, Neil Lennart Anderson, Dmitriy A. Malovichko, Denis Yu Shylakov, Pavel G. Butirin
Active-Passive Array Surface Wave Inversion And Comparison To Borehole Logs In Southeast Missouri, Alexei A. Malovichko, Neil Lennart Anderson, Dmitriy A. Malovichko, Denis Yu Shylakov, Pavel G. Butirin
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
In May 2002, both active- and passive-source surface wave data were acquired using 4-channel arrays at six selected bridge sites in southeast Missouri. Processing of acquired data (increase of signal-to-noise ratio, estimation of phase velocities) was carried out and dispersion curves of Rayleigh wave phase velocities were constructed. Each fundamental mode dispersion curve was then inverted by linearised optimization to a layered shear-wave velocity profile to depths of up to 60 m. The estimated shear-wave velocity profiles were compared to other geotechnical data that had been previously acquired at each test site for the Missouri Department of Transportation (MoDOT) including …
Hydrogeophysical Investigation At Luxor, Southern Egypt, Ahmed Ismail, Neil Lennart Anderson, J. David Rogers
Hydrogeophysical Investigation At Luxor, Southern Egypt, Ahmed Ismail, Neil Lennart Anderson, J. David Rogers
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
Over the past 35 years, the exposed stone foundations of the ancient Egyptian monuments at Luxor have deteriorated at an alarmingly accelerated rate. Accelerated deterioration is attributable to three principal factors: 1) excavation and exposure of foundation stone; 2) construction of the Aswan High Dam; and 3) changes in the regional groundwater regime. In an effort to better elucidate the hydrostratigraphy in the Luxor study area that extends from the River Nile to the boundaries of the Nile Valley and covers about 70 km2, a geophysical/hydrological investigation was conducted. Forty Schlumberger vertical electrical soundings (VES), two approximately 6 …