Results 81 to 90 of about 1,697 (196)

Investigation of Dam Safety Making Use of Multichannel Analysis of Surface Wave (MASW) Seismic Method

, 2013
Multichannel Analysis of Surface Wave (MASW) seismic method is widely used in geotechnical engineering for the measurement of shear wave velocity and evaluation of material property. This method was recently conducted at a Dam site located in Zaria, within the basement complex of northern Nigeria.
openaire   +1 more source

MASW (Multichannel of Analysis of Surface Waves) Measurements on Very Dense Fill of Freeport Mining

Journal of Physics: Conference Series
Abstract The MASW (Multi-Channel Analysis of Surface Waves) was conducted on fill soil at Tembagapura Freeport Mining. The fill was very dense and is the landfills where people dumped waste disposal like car tire rubber etc. Several attempts were made to make boreholes to collect soil samples and to run SPT (Standard Penetration Test ...
G Handayani, G Masimuja
openaire   +1 more source

Hydro‐Mechanical Characterization of a Fractured Aquifer Using Groundwater Level Tidal Analysis: Effect of Pore Pressure and Seismic Dynamic Shear Stresses on Permeability Variations

Journal of Geophysical Research: Solid Earth, Volume 129, Issue 8, August 2024.
Abstract Groundwater level tidal analysis is a powerful technique to monitor aquifer's permeability and hence its change over time. Earthquakes are known to affect aquifer's properties, in their vicinity through static stress changes but also further away through dynamic stresses.
A. Thomas, J. Fortin, B. Vittecoq, H. Aochi, S. Violette, J. Maury, F. Lacquement, A. Bitri   +7 more
wiley   +1 more source

Passive Multichannel Analysis of Surface Waves: A Two-Dimensional Seismic Dataset Acquired with Geophones and Distributed Acoustic Sensing at a Mineral Exploration Site in the Pilbara Region of Western Australia

Geosciences
Passive seismic surveys have attracted interest for use in many geological and geotechnical applications in the past few decades, mainly in reconstructing models of near-surface properties.
Emad Al-Hemyari, Roman Isaenkov, Pavel Shashkin, Roman Pevzner, Konstantin Tertyshnikov   +4 more
doaj   +1 more source

Application of high resolution geophysical prospecting to assess the risk related to subsurface deformationin Mexico City [PDF]

Proceedings of the International Association of Hydrological Sciences, 2015
In the eastern sector of Mexico City the sub soil consists of high contrasting sequences (lacustrine and volcanic inter bedded deposits) that favor the development of erratic fracturing in the surface causing damage to the urban infrastructure.
F. A. Centeno-Salas, F. A. Centeno-Salas, D. Carreón-Freyre, W. A. Flores-García, R. I. Gutiérrez-Calderón   +4 more
doaj   +1 more source

Mapping Permafrost Variability and Degradation Using Seismic Surface Waves, Electrical Resistivity, and Temperature Sensing: A Case Study in Arctic Alaska

Journal of Geophysical Research: Earth Surface, Volume 129, Issue 3, March 2024.
Abstract Subsurface processes significantly influence surface dynamics in permafrost regions, necessitating utilizing diverse geophysical methods to reliably constrain permafrost characteristics. This research uses multiple geophysical techniques to explore the spatial variability of permafrost in undisturbed tundra and its degradation in disturbed ...
Ahmad Tourei, Xiaohang Ji, Gabriel Rocha dos Santos, Rafal Czarny, Sergei Rybakov, Ziyi Wang, Matthew Hallissey, Eileen R. Martin, Ming Xiao, Tieyuan Zhu, Dmitry Nicolsky, Anne Jensen   +11 more
wiley   +1 more source

Methodological procedure for applying geophysics to geotechnical studies in Luanda City, Angola

Minería y Geología, 2018
The use of the surface wave’s analysis in its passive and active variants was jointly assessed by the shallow seismic refraction. It allows determining dynamic parameters from the longitudinal and transverse velocities, obtained from seismic methods. For
Maria A. Pereira de Barros da Silva, Héctor M. Fernández-Núñez, João Júnior-Baptista, Gabriela J. Pereira-Teixeira Pires   +3 more
doaj  

2D Near‐Surface Full‐Waveform Tomography Reveals Bedrock Controls on Critical Zone Architecture

Earth and Space Science, Volume 11, Issue 2, February 2024.
Abstract For decades, seismic imaging methods have been used to study the critical zone, Earth's thin, life‐supporting skin. The vast majority of critical zone seismic studies use traveltime tomography, which poorly resolves heterogeneity at many scales relevant to near‐surface processes, therefore limiting progress in critical zone science.
B. J. Eppinger, W. S. Holbrook, Z. Liu, B. A. Flinchum, J. Tromp   +4 more
wiley   +1 more source

Caracterização da estrutura sub-superficial da ilha do Faial (Açores) [PDF]

, 2014
The aim of this communication is to present the velocity models of propagation of seismic waves P and S using geophysical methods, such as refraction surveys, MASW (Multichannel Analysis of Surface Waves), and Horizontal-to-Vertical spectral ratio ...
Bezzeghoud, Mourad, Borges, José F., Caldeira, Bento, Casacão, J., Neves, Samuel   +4 more
core  

Study of Asphalt Pavement Cracking in Different Road Sections of Morocco Using Electrical Resistivity Tomography

International Journal of Geophysics, Volume 2024, Issue 1, 2024.
Road pavements undergo various environmental factors such as temperature changes, precipitation, and traffic exposure, which can lead to cracks in asphalt pavements compromising road user safety and necessitating costly repairs. To gain a deeper understanding of the mechanisms behind asphalt pavement cracking, this study proposes the utilization of the
Khalid Krami, Ahmed Benamara, Mohammed Radouani, Mohammad Ettayeb, Lhoussaine Tarik, Sándor Szalai   +5 more
wiley   +1 more source