Results 71 to 80 of about 51,926 (207)

Ballast fouling evaluation with ground penetrating radar

MATEC Web of Conferences, 2018
In the transport infrastructures context, the support layers have a fundamental role in the degradation of the track condition, both in structural aspects and in terms of fouling of the materials that comprise them.
Marques Ana Margarida, Fontul Simona, Paixão André   +2 more
doaj   +1 more source

Time-lapse geophysical investigations over a simulated urban clandestine grave [PDF]

, 2008
A simulated clandestine shallow grave was created within a heterogeneous, made-ground, urban environment where a clothed, plastic resin, human skeleton, animal products, and physiological saline were placed in anatomically correct positions and re ...
Cassella, JP, Cassidy, NJ, Jervis, J, Pringle, JK   +3 more
core   +2 more sources

Collaborative interpretation of the data obtained by resistivity and ground penetrating radar methods for assessing the permeability of sandy clay soils

Записки Горного института, 2018
A method for estimating the filtration factor of sandy clay soils is considered on the basis of a joint interpretation of the data of a set of methods of engineering electrical exploration, including electrical resistivity tomography and ground ...
D. A. Lalomov, V. V. Glazunov
doaj   +1 more source

Propagation of Bessel beams from a dielectric to a conducting medium

, 2010
Recently, the use of Bessel beams in evaluating the possibility of using them for a new generation of GPR (ground penetrating radar) systems has been considered.
Li, Mugnai, Mugnai, Mugnai, Mugnai, Mugnai, Muys, Reivelt, Saari, Saari, Zamboni-Rached   +10 more
core   +1 more source

Research on Tunnel Boring Machine Tunnel Water Disaster Detection and Radar Echo Signal Processing

Buildings
This study focused on the detection of water inrush in tunnels excavated by full-section hard rock tunnel boring machines (TBMs) and employed ground penetrating radar methods for conducting research on radar signal processing algorithms.
Gaoming Lu, Yan Ma, Qian Zhang, Jianfei Wang, Lijie Du, Guoqing Hao   +5 more
doaj   +1 more source

Ground penetrating radar assessment of historical buildings: the study of the roofs, columns and ground of Santa Maria del Mar, in Barcelona / GPR assessment of the basilica Santa Maria del Mar [PDF]

, 2017
Santa Maria del Mar is a magnificent gothic church built between 1329 and 1383 in a neighbourhood outside the city walls, over the remains of a more ancient church.
Caselles Magallón, Josep Oriol, Clapes Boixader, Jaime, Pérez Gracia, María de la Vega   +2 more
core   +1 more source

Overlying strata movement with ground penetrating radar detection in close-multiple coal seams mining

International Journal of Distributed Sensor Networks, 2019
Longwall mining is a productive mining method that has been widely used in China, the United States, Australia, and Europe. However, due to the subsidence caused by coal mining activities, the phenomenon is complex, longwall mining brings the overburden ...
Yang Li, Jiachen Wang, Yiding Chen, Zhipeng Wang, Jianpeng Wang   +4 more
doaj   +1 more source

Evaluating the possibility of designing three-dimensional ground penetrating mobile technology [PDF]

, 2016
На основании апробированного подповерхностного радиолокатора СВЧ диапазона строится ОВЧ вариант комплекса при условии пропорционального сохранения точностных характеристик.
Kalmykov, A. A., Shaidurov, K. D., Калмыков, А. А., Шайдуров, К. Д.   +3 more
core  

A High-Performance Deep-Learning-Based Ground Penetrating Radar Classification Approach With Special Focus on Multi-Class Robustness

IEEE Access
Urbanization is increasing the presence of various utilities in the ground, while at the same time underground cavities and sinkholes pose a major threat to the civilization and structural integrity of the infrastructure. Ground Penetrating Radar B-scans
Mats Pagers, Pascal Penava, Ricardo Buettner   +2 more
doaj   +1 more source

Ground penetrating radar applied to subsurface culverts

Geo-spatial Information Science
The failures of culverts can result in water and soil loss in the surrounding subsurface, leading to collapses. In densely constructed urban areas, buried culverts are inaccessible and invisible, making Ground Penetrating Radar (GPR) inspection a widely ...
Tess Luo, Song Zhu, Yiliminuer Yikeremu, Jiasong Zhu, John van Genderen   +4 more
doaj   +1 more source