Results 211 to 220 of about 6,770 (264)

Enhancing Subsurface Imaging: Optimization of Data Acquisition and Processing Parameters in Passive Roadside MASW Surveys

Disaster Advances
This study presents an in-depth analysis of optimal data acquisition and processing parameters for passive roadside multi-channel analysis of surface waves (MASW) surveys in urban settings.
Phurba Dorjee Philley, Jumrik Taipodia, Tassar Pana, Aditya Kumar Anshu   +3 more
semanticscholar   +1 more source

Uncertainty reduction in MASW inversion and ground response analysis using a-priori information

Geotechnical Engineering
Multi-channel analysis of surface waves (MASW) method is commonly used for estimating the shear wave velocity (Vs) profile of soil and subsequent ground response analysis (GRA). However, the uncertainties from inversion non-uniqueness in MASW testing and
Aniket Desai, R. Jakka
semanticscholar   +1 more source

Комплексирование электроразведки ВЭЗ и сейсморазведки MASW

5th EAGE International Scientific and Practical Conference and Exhibition on Engineering and Mining Geophysics, 2009
1. MASW и ВЭЗ – общая идеология Анализ волновой картины, возникающей при импульсном возбуждении сейсмических колебаний, позволяет построить кривую зависимости скорости распространения поверхностной волны от ее частоты. По своему интегральному характеру она подобна кривым электромагнитных зондирований и может пониматься как зависимость от частоты (f ...
openaire   +1 more source

MASW applications for road construction and maintenance

The Leading Edge, 2018
Road construction and maintenance are major parts of geotechnical engineering that deal with the stiffness of natural or manmade ground materials. At the earliest stage of new road construction, the ground along the planned route often needs to be characterized in terms of the overall stiffness of the overburden-bedrock system.
Choon Park, Jason Richter, Roger Rodrigues, Alessandro Cirone   +3 more
openaire   +1 more source

EFFECT OF SOURCES AND GEOPHONE COUPLING ON MASW SURVEYS

19th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems, 2006
We have used the multi-channel active surface wave (MASW) seismic method to map stratigraphy and bedrock at sites with differing soil and rock characteristics. The purported advantages of using the shear wave velocity field calculated from surface waves to detect, delineate, and/or map anomalous subsurface materials include the insensitivity of MASW to
Mario Carnevale, Jutta Hager
openaire   +1 more source

Linearized Inversion of MASW Data Using Inequality Constraints

Near Surface 2007 - 13th EAGE European Meeting of Environmental and Engineering Geophysics, 2007
Inequality constraint formulation of least squares inversion is a flexible method to insert physical constraints (as well as a priori information) into the inversion process. In MASW (Multichannel Analysis of Surface Waves) inversion this has proved to be useful to stabilize convergence when applied to fundamental-mode dominated data as well as to data
openaire   +2 more sources

MASW Measurements for Seismic Site Effect Evaluation

4th Congress of the Balkan Geophysical Society, 2005
O5 - 03 ENVIRONMENTAL ENGINEERING & ARCHAEO-GEOPHYSICS MASW MEASUREMENTS FOR SEISMIC SITE EFFECT EVALUATION 1 2 1 2 1 1 L. Hermann A.I. Kanli Zs. Pronay A. Pinar P. Tildy E. Toros 1 Eotvos Lorand Geophysical Institute Department of Engineering Geophysics Budapest Hungary 2 Istanbul University Engineering Faculty Department of Geophysical Engineering ...
L. Hermann, A.I. Kanli, Zs. Prónay, A. Pinar, P. Tildy, E. Törös   +5 more
openaire   +1 more source

Evaluation of shear geophones in MASW testing

International Journal of Geotechnical Engineering, 2017
Dynamic properties such as wave velocities and damping ratios are required for dynamic analyses of sites.
Zahid Khan, Mohammad Yamin
openaire   +1 more source

MASW surveys in landfill sites in Australia

The Leading Edge, 2013
Multichannel analysis of surface waves (Park et al., 1999), commonly called MASW, is a seismic technique used to map the near-surface S-wave velocity structure. It has been applied to a range of geotechnical engineering problems, such as detection of cavities (Miller et al., 1999), the search for bedrock structure (Carnevale et al., 2005), examining ...
openaire   +1 more source

Kars Investigation by Microgravity and MASW Coupling

Near Surface 2006 - 12th EAGE European Meeting of Environmental and Engineering Geophysics, 2006
A geophysical integrated approach for the detection and characterisation of karst structures in an urban environment was experimented. Microgravity was performed for void detection, together with Multi-channel Analysis of Surface Waves (MASW), aimed to the identification of mechanical weakness areas.
openaire   +1 more source