Results 81 to 90 of about 4,566 (160)

Acoustic Signal‐Based Deep Learning Approach and Device for Detecting Interfacial Voids in Steel–Concrete Composite Structures

Advances in Civil Engineering, Volume 2025, Issue 1, 2025.
The reliable synergy between steel and concrete is an important evaluation criterion for the safety and long‐term use of steel–concrete composite structures (SCCSs). However, it is still a great challenge to realize fast and automated interface void detection for composite structures such as towers.
Wei Tian, Hang Yuan, Xinpeng You, Hehui Zheng, Bazhou Li, Chengming Peng, Doo-Yeol Yoo   +6 more
wiley   +1 more source

Multichannel surface wave analysis in the context of shallow geophysical investigations

Academia Engineering
The application of multichannel surface wave analysis (MASW) has proven to be an effective method for non-invasive investigation of shallow geological structures, especially under complex conditions with heterogeneous layers and the presence ...
Ekrem Bektašević, Stjepan Strelec, Noris Sakić, Kemal Gutić   +3 more
doaj   +1 more source

Study of the feasibility of the MASW seismic method in coal prospecting: a study based on a conceptual model for the Candiota mine, southern Brazil [PDF]

REM: International Engineering Journal
The main coal reserves in Brazil are located in the southern region, where the most important coalfield, including the Candiota mine, is found. The mineral exploration and mine planning programs of the companies mining these coal deposits are generally ...
Lucas Rosso Lopes, Marcus Vinícius Aparecido Gomes de Lima, Randell Alexander Stephenson   +2 more
doaj   +1 more source

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

The Linked Complexity of Coseismic and Postseismic Faulting Revealed by Seismo‐Geodetic Dynamic Inversion of the 2004 Parkfield Earthquake

Journal of Geophysical Research: Solid Earth, Volume 129, Issue 12, December 2024.
Abstract Several regularly recurring moderate‐size earthquakes motivated dense instrumentation of the Parkfield section of the San Andreas fault (SAF), providing an invaluable near‐fault observatory. We present a seismo‐geodetic dynamic inversion of the 2004 Parkfield earthquake, which illuminates the interlinked complexity of faulting across time ...
Nico Schliwa, Alice‐Agnes Gabriel, Jan Premus, František Gallovič   +3 more
wiley   +1 more source

Seismic microzonation maps of Phrae city, Northern Thailand

Geomatics, Natural Hazards & Risk, 2019
A case study using shear wave velocity (Vs) data obtained from seismic multi-channel analysis of surface wave (MASW) studies was used to evaluate site conditions in Phrae City, Northern Thailand.
Thanop Thitimakorn
doaj   +1 more source

A probabilistic full waveform inversion of surface waves

Geophysical Prospecting, Volume 72, Issue 9, Page 3448-3473, November 2024.
Abstract Over the past decades, surface wave methods have been routinely employed to retrieve the physical characteristics of the first tens of meters of the subsurface, particularly the shear wave velocity profiles. Traditional methods rely on the application of the multichannel analysis of surface waves to invert the fundamental and higher modes of ...
Sean Berti, Mattia Aleardi, Eusebio Stucchi   +2 more
wiley   +1 more source

The Estimation of Shear Wave Velocity for Shallow Underground Structures in the Central Himalaya Region of Nepal

Geosciences
A subsurface investigation was conducted to assess the suitability of a site for potential tunnel construction, focusing on the determination of shear wave velocities (Vs) in subsurface materials.
Umesh Jung Thapa, Satish Paudel, Umesh Chandra Bhusal, Hari Ghimire, Shyam Sundar Khadka   +4 more
doaj   +1 more source

Engineering attributes of ground motions from February 2023 Türkiye earthquake sequence

Earthquake Spectra, Volume 40, Issue 4, Page 2268-2284, November 2024.
The 2023 Türkiye earthquake sequence includes the 6 February M7.81 mainshock followed approximately 9 h later by an M7.74 event, and many smaller aftershocks including M6.81 and M6.37 events on 6 and 20 February, respectively. These events occurred in a region near the plate boundary of the East Anatolian Fault, in the proximity of which numerous ...
Tristan E Buckreis, Renmin Pretell, M Abdullah Sandikkaya, Özkan Kale, Aysegul Askan, Scott J Brandenberg, Jonathan P Stewart   +6 more
wiley   +1 more source

Estimation of bedrock depth for a part of Garhwal Himalayas using two different geophysical techniques

Geoscience Letters, 2018
It has now been well established that the depth of bedrock is a key parameter in assessing the impact of local site conditions on seismic hazard analysis.
Ritu Raj Nath, Gautam Kumar, M. L. Sharma, S. C. Gupta   +3 more
doaj   +1 more source