Results 41 to 50 of about 1,697 (196)

Investigation Of Device For Geophysical Exploration At Shallow Depth [PDF]

, 2017
The article presents the results of the development of the echolocation device for geophysical exploration at shallow depth. The principle of operation, block diagram and time diagrams of the echolocation device for geophysical exploration at shallow ...
Kuldashev, O. (Obbozzhon), Tojiboev, I. (Ibrohimzhon)   +1 more
core   +2 more sources

Evaluation Study of Boundary and Depth of the Soil Structure for Geotechnical Site Investigation using MASW [PDF]

, 2017
This study reviews the correlation between the experimental Rayleigh dispersion curve and the Vp & Vs ground model versus depth. Six samples of stations A , B , C , D , E and F were used in the experiment.The geophone spacing used was set 1 m and total
Arisona, A., Fathi, M.A., Hariri, Mohd., Khalil, Amin E., Nawawi, Mohd., Nuraddeen, U.K   +5 more
core   +5 more sources

Nondestructive testing of railway embankments by measuring multi-modal dispersion of surface waves induced by high-speed trains with linear geophone arrays

Seismica
To effectively address engineering challenges and risks, it is crucial to characterize mechanical properties of near-surface environments. The Multichannel Analysis of Surface Waves (MASW) has proven to be a valuable active seismic imaging technique by ...
José Cunha Teixeira, Ludovic Bodet, Marine Dangeard, Alexandrine Gesret, Amélie Hallier, Agnès Rivière, Audrey Burzawa, Julio José Cárdenas Chapellín, Marie Fonda, Ramon Sanchez Gonzalez, Amine Dhemaied, Joséphine Boisson Gaboriau   +11 more
doaj   +1 more source

Integrated geophysical assessment of a municipal waste disposal site for its geological suitability in terms of the underlain material

African Scientific Reports, 2023
Dumpsites are major sources of groundwater pollution as a result of leachates that drain out of the decomposed waste. If there are no underlain materials that could serve as a seal to stop the percolation of leachate, it finds its way to the groundwater.
Omolara A. Adenuga, Olateju A. Bayewu, Hamid T. Oladunjoye, Sofiat A. Adekoya   +3 more
doaj   +1 more source

Geomorphology Characterization of Ica Basin and Its Influence on the Dynamic Response of Soils for Urban Seismic Hazards in Ica, Peru

International Journal of Geophysics, 2018
We evaluated the influence of the geomorphology of Peru’s Ica Basin on the dynamic response of soils of the city of Ica. We applied five geophysical methods: spectral ratio (H/V), frequency-wavenumber (F-K), multichannel analysis of surface waves (MASW),
Isabel Bernal, Hernando Tavera, Wilfredo Sulla, Luz Arredondo, Javier Oyola   +4 more
doaj   +1 more source

Comparative analysis of Geotechnical and Geophysical Investigations for average shear wave velocity in Metro Manila

Energy Reports, 2023
Philippines is one of the most seismically active countries in Southeast Asia and records at least 20 earthquakes per day according to the PHIVOLCS. Vs30 is defined as the shear wave velocity of the upper 30-meter subsurface profile which is an important
Cris Edward Monjardin, Anthony B. Medina
doaj   +1 more source

Assessing the Seismic Wavefield of a Wind Turbine Using Polarization Analysis [PDF]

, 2017
Ambient seismic noise can often be seen as problematic, but with the right analysis can act as a tool to image the Earth. Wind turbines are known to generate low frequency vibrations, however, the wave types that are generated are currently unknown ...
Adam, Bataille, Flinn, Hendrick, Jackson, Moschetti, Nicolson, Park, Pischiutta, Riahi, Saccorotti, Shapiro, Stachnik, Tiapkina, Tokeshi, Vidale, Westwood   +16 more
core   +1 more source

Multi‐scale geophysical mapping of the brine and bedrock surfaces along the Dolores River, Paradox Valley, Colorado, December 2023

Near Surface Geophysics, Volume 24, Issue 1, Page 36-49, February 2026.
Abstract Total dissolved solids derived from salt dome–sourced brine in the underlying alluvial aquifer substantially increase with distance in the reach of the Dolores River that passes through Paradox Valley in southwestern Colorado. The area has been the site of salinity control operations since the 1990s to reduce salt loading to the downstream ...
Neil Terry, Alisa Mast, Andrea Creighton, Joel Homan, Connor Newman, Suzanne Paschke   +5 more
wiley   +1 more source

Structure of an Ancient Egyptian Tomb Inferred from Ground-Penetrating Radar Imaging of Deflected Overburden Horizons [PDF]

, 2015
Geophysical data acquisitions in most archaeological campaigns aim to image the target structure directly. The presence of a target, however, may be inferred from its interaction with surrounding layers, if its relationship with those layers can be ...
Booth, AD, Griffin, K, Pischikova, E, Szpakowska, K   +3 more
core   +3 more sources

Enhancing fieldwork productivity in subsurface characterization: advancements in data acquisition with MASW-DS

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
The multichannel analysis of surface waves (MASW) method utilizes low-frequency surface waves to characterize the shallow subsurface layers. It is a very useful tool in geotechnical engineering for evaluating soil quality and mapping the characteristics ...
Hamdan Hamdan, George Kritikakis, Mahmoud Elsamani, Mahmoud Harb, Mohamed Abdel-Fattah, Pantelis Soupios   +5 more
doaj   +1 more source