Article
Environmental Sciences
Giovanni Leucci, Ilaria Miccoli, Dora Francesca Barbolla, Lara De Giorgi, Ivan Ferrari, Francesco Giuri, Giuseppe Scardozzi
Summary: The Castle of Melfi, located on a hilltop, has undergone modifications and expansions over time. It was initially built during the Norman era, expanded under Frederick II, and further altered during the Angevin and Aragonese reigns. Ground-penetrating radar and electrical resistivity tomography surveys were conducted in different areas of the castle to identify ancient buried structures and compare the results.
Article
Engineering, Environmental
Faheem Ullah, Li-Jun Su, Mehtab Alam, Li Cheng, Mohib Ur Rehman, Aamir Asghar, Gulfam Hussain
Summary: This study utilizes geophysical techniques to locate subsurface deformations that could lead to landslides in a community in Pakistan. The morphometric analysis indicates that a total slope failure could displace approximately 14 million cubic meters of soil. Therefore, determining the vertical extent of deformations is crucial in planning effective measures to mitigate progressive failure. The study aims to evaluate the efficacy of an unshielded antenna for assessing landslide hazards. By analyzing 19 GPR profiles and comparing them with other subsurface exploration methods, such as seismic, electrical, and surface-exposed geology investigation, the research reveals the presence of subsurface degradation and sinkholes up to 20 meters in depth. Mapping these deformations provides valuable information for accurately identifying landslide layers and detecting sliding surfaces with minimal cost and time. This research output serves as a supplementary tool for landslide mitigation and contributes to understanding the nature of landslides in the Karakoram ranges.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2022)
Article
Geosciences, Multidisciplinary
Faheem Ullah, Lijun Su, Mehtab Alam, Li Cheng, Elena S. Kazantseva
Summary: This paper investigates the case history of the Maicher landslide in the Nagar District (Northern Pakistan) by using a multidisciplinary combined technique approach based on conventional geophysical measurements and modern remote sensing techniques. The results suggest that shear surface planes at a depth of 35-40 m have developed over time. The geophysical parameters provide reliable qualitative and quantitative information about the landslide.
JOURNAL OF APPLIED GEOPHYSICS
(2023)
Article
Environmental Sciences
Emanuele Colica, Luciano Galone, Sebastiano D'Amico, Adam Gauci, Roberto Iannucci, Salvatore Martino, Davide Pistillo, Peter Iregbeyen, Gianluca Valentino
Summary: A methodology for evaluating cliff erosion/retreat was developed by integrating geomatics and geophysical techniques. A 3D digital model of the study area was generated using UAV photogrammetry, and geophysical measurements such as electrical resistivity tomography and ground penetrating radar were conducted. The movement and evolution of boulders and cracks in rocks were analyzed through time, providing information for qualitative assessment of coastal variations and planning risk mitigation strategies.
Article
Geosciences, Multidisciplinary
Tathiana Rodrigues Caetano, Hersilia Andrade Santos, Remke Leander van Dam
Summary: This study demonstrates the effectiveness of Ground Penetrating Radar (GPR) and Electrical Resistivity (ERT) methods in detecting water leakage from a specific large unpressurized pipeline. These methods can indicate soil zones related to water losses and their accuracy depends on environmental factors and the time of the leaking opening. The application of geophysical technologies in water resource management can help address losses in the water supply system.
JOURNAL OF APPLIED GEOPHYSICS
(2023)
Article
Chemistry, Analytical
Luigi Capozzoli, Giacomo Fornasari, Valeria Giampaolo, Gregory De Martino, Enzo Rizzo
Summary: This study aimed to improve the monitoring and characterization of civil structures using non-destructive testing methods such as ground penetrating radar and electrical resistivity tomography. Results showed the effectiveness and limitations of these methods, which are crucial for civil engineering applications. The study also introduced a new approach based on cross-hole electrical resistivity tomography, aiming to reduce uncertainties in engineering structure monitoring.
Article
Green & Sustainable Science & Technology
Nabeel Afzal Butt, Muhammad Younis Khan, Seema Anjum Khattak, Gulraiz Akhter, Yonggang Ge, Muhammad Tahir Shah, Asam Farid
Summary: Open and non-engineered dumping is a common method of solid waste disposal in Pakistani cities, which poses a serious threat to the surrounding ecosystem and human population. This study used geophysical and geochemical techniques to assess a non-engineered and open dumpsite in Pakistan, revealing that the site is a potential source of contamination to agricultural land, surface water, and groundwater.
Article
Engineering, Environmental
Marta Kondracka, Iwona Stan-Kleczek, Slawomir Sitek, Dariusz Ignatiuk
Summary: The study aimed to assess the suitability of geophysical methods for investigating old waste dumps. GPR and SRT were challenging due to dense vegetation, while ERT provided the most accurate results regarding waste deposits.
Article
Multidisciplinary Sciences
Mahmoud Gaballah, Thamer Alharbi
Summary: Near-surface geophysical techniques such as ground-penetrating radar (GPR) and electric resistivity tomography (ERT) have great potential for 3-D visualization of fractures and cavities. This study used integrated surveys with GPR and ERT to map and evaluate subsurface fracture networks in limestone in Egypt, and to detect cavities at an engineering site in Saudi Arabia. The results demonstrated the efficiency of these techniques in solving subsurface engineering problems and improving site safety. An advanced 3-D GPR visualization technique, isosurface rendering, was also found to be effective for fracture and cavity detection.
JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE
(2022)
Article
Geochemistry & Geophysics
Maoxin Su, Ying Zhao, Yiguo Xue, Peng Wang, Teng Xia, Kai Zhang, Congcong Li
Summary: A progressive integrated geophysical method combining GPR, TEM, ERT, and 3D laser scanning is proposed for fine detection of karst areas in urban subways. The method provides quantitative and integrated detection imaging of shallow karst systems, revealing the distribution and development direction of abnormal karst bodies, inferring the main water channel, and accurately positioning karst caves through cross-hole ERT exploration. This method has been successfully applied in the Jinan Metro.
PURE AND APPLIED GEOPHYSICS
(2021)
Article
Geosciences, Multidisciplinary
Igor Murin, Martin Neumann, Conor Brady, Jozef Batora, Matej Capo, Dominik Drozd
Summary: This article presents the successful application of several geophysical methods in archaeological prospection through the integration of LiDAR data and examination of historical documents. The study area in an urban area of Bratislava revealed important information about the fortification system dating back to the Napoleonic siege of Pressburg in 1809. The combined approach of magnetometry, ground penetrating radar, 2D electrical resistivity tomography, and electrical resistance survey proved to be essential in uncovering hidden archaeological features and understanding the historical locality.
JOURNAL OF APPLIED GEOPHYSICS
(2022)
Article
Engineering, Geological
Ruilang Cao, Shangxin Feng
Summary: This study utilized a combination of survey methods to investigate geological hazard zones in karst terrains before grouting programs, defining necessary stratigraphic characteristics and determining appropriate grouting parameters for successful completion of grouting projects. The data obtained from the combined methods led to accurate and practical survey results.
SOIL MECHANICS AND FOUNDATION ENGINEERING
(2021)
Article
Geochemistry & Geophysics
Caleb Leibowitz, Anthony J. Weiss
Summary: Cross-borehole ground-penetrating radar (GPR) is an effective tool for detecting underground cavities. Zero-offset profiling (ZOP) measurements are cheaper but may not provide accurate cavity detection, while multiple-offset gathers (MOGs) are more informative but costly. This article investigates the use of small offset measurements and shows it to be a favorable option in the expense-utility tradeoff. It also emphasizes the importance of appropriate traveltime measurement in the noise regime of GPR.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2023)
Article
Archaeology
Katharina Rusch, Daniel Koehn, Harald Stumpel, Walter Gauss, Wolfgang Rabbel
Summary: The study presents an extensive geophysical investigation of enigmatic subsurface structures in Ancient Aigeira, Greece, which could be interpreted as prehistoric tombs or geological weathering patterns. Nonseismic methods are unable to distinguish between these interpretations, while shear-wave seismics and full-waveform inversion (FWI) prove to be effective in differentiating between them.
ARCHAEOLOGICAL PROSPECTION
(2022)
Article
Anthropology
Alvise Barbieri, Felix Bachofer, Elmar M. Schmaltz, Carsten Leven, Nicholas J. Conard, Christopher E. Miller
Summary: The study reveals that sediments and archaeological materials eroded from caves and deposited above river incisions in both Ach and Lone valleys before 37-32 Kcal BP. A comparison suggests that the dearth of Gravettian materials in the Lone Valley may be the result of cave deposits erosion occurring at different times than in the Ach Valley.
JOURNAL OF ARCHAEOLOGICAL SCIENCE
(2021)