Ground-penetrating radar survey to map the location of buried structures under two churches

2002 ◽  
Vol 9 (4) ◽  
pp. 217-228 ◽  
Author(s):  
Giovanni Leucci
Keyword(s):  
Ground Penetrating Radar ◽  
Buried Structures ◽  
Ground Penetrating

Monte Albán's Hidden Past: Buried Buildings and Sociopolitical Transformation

2020 ◽  
pp. 1-23
Author(s):  
Marc N. Levine ◽  
Scott W. Hammerstedt ◽  
Amanda Regnier ◽  
Alex E. Badillo
Keyword(s):  
Ground Penetrating Radar ◽  
Electrical Resistance ◽  
Early History ◽  
Buried Structures ◽  
Systematic Survey ◽  
Monte Alban ◽  
Ground Penetrating ◽  
Shed Light

In this article, we present the most significant results of the Monte Albán Geophysical Archaeology Project. Using ground-penetrating radar, gradiometry, and electrical resistance, we carried out a systematic survey of the site's Main Plaza to identify buried prehispanic features that might shed light on Monte Albán's early history. The most important discoveries include three buried structures dating between the Danibaan (500–300 BC) and Nisa phases (100 BC–AD 100). We argue that the largest structure, measuring 18 × 18 m, was probably a temple platform and that all three of the structures were razed and buried by the end of the Nisa phase at the latest. Furthermore, we contend that these events were part of a major renovation and expansion of the site's Main Plaza that occurred during a pivotal period of dramatic sociopolitical transformation in the Zapotec capital.

scholarly journals Integrating Geophysical and Photographic Data to Visualize the Quarried Structures of the Roman Town of Bassianae

2021 ◽  
Vol 13 (12) ◽  
pp. 2384
Author(s):  
Roland Filzwieser ◽  
Vujadin Ivanišević ◽  
Geert J. Verhoeven ◽  
Christian Gugl ◽  
Klaus Löcker ◽  
...  
Keyword(s):  
Ground Penetrating Radar ◽  
Urban Infrastructure ◽  
Aerial Photographs ◽  
Surface Model ◽  
Data Sets ◽  
Buried Structures ◽  
Archaeological Prospection ◽  
Ground Penetrating ◽  
Geophysical Prospection ◽  
Strong Agreement

Large parts of the urban layout of the abandoned Roman town of Bassianae (in present-day Serbia) are still discernible on the surface today due to the deliberate and targeted quarrying of the Roman foundations. In 2014, all of the town's intramural (and some extramural) areas were surveyed using aerial photography, ground-penetrating radar, and magnetometry to analyze the site's topography and to map remaining buried structures. The surveys showed a strong agreement between the digital surface model derived from the aerial photographs and the geophysical prospection data. However, many structures could only be detected by one method, underlining the benefits of a complementary archaeological prospection approach using multiple methods. This article presents the results of the extensive surveys and their comprehensive integrative interpretation, discussing Bassianae's ground plan and urban infrastructure. Starting with an overview of this Roman town's research history, we present the details of the triple prospection approach, followed by the processing, integrative analysis, and interpretation of the acquired data sets. Finally, this newly gained information is contrasted with a plan of Roman Bassianae compiled in 1935.

scholarly journals Magnetic and ground penetrating radar for the research of Medieval buried structures in Marche Region

2010 ◽  
Vol 24 ◽  
pp. 89-95
Author(s):  
M. Bavusi ◽  
A. Loperte ◽  
V. Lapenna ◽  
U. Moscatelli ◽  
S. Minguzzi
Keyword(s):  
Middle Ages ◽  
Ground Penetrating Radar ◽  
Magnetic Anomalies ◽  
Magnetic Method ◽  
Resistivity Tomography ◽  
Buried Structures ◽  
Marche Region ◽  
Joint Interpretation ◽  
Late Roman Period ◽  
Ground Penetrating

Abstract. A magnetic and Ground Penetrating Radar joint survey was carried out in the framework of the R.I.M.E.M. project that has the aim of supporting the archaeological prospections and drive the selection of the excavation areas related to the Late Roman Period and Early Middle Ages in the Central and Southern Italy. In particular, this papers deals with the magnetic surveys acquired near "Madonna della Valle" and GPR and magnetic joint surveys carried out in "Monastero"site. Most of magnetic maps carried out in "Madonna della Valle" site shown the absence of structured magnetic anomalies, despite of the presence of archaeological signs. Several hypothesis were given to explain this evidence. Joint interpretation performed in "Monastero" site shown more intense magnetic anomalies related with shallower reflections due to probably to buried pipes. Other reflections are related with magnetic anomalies compatible with archaeological targets, but some significant reflections do not correspond to any magnetic anomaly, indicating magnetic method could be "blind" respect the archaeological target. New field surveys including the electrical resistivity tomography could be carried out in order to overcome these acquisition and interpretation difficulties.

scholarly journals Archaeological Investigation and Hazard Assessment Using Magnetic, Ground-Penetrating Radar, and GPS Tools at Dahshour Area, Giza, Egypt

2021 ◽  
Vol 9 ◽  
Author(s):  
A. E. El Emam ◽  
A. Lethy ◽  
Ali M. Radwan ◽  
A. Awad
Keyword(s):  
Ground Penetrating Radar ◽  
Nile Valley ◽  
Geophysical Investigation ◽  
Buried Structures ◽  
Archaeological Investigation ◽  
Structure Damage ◽  
Southern Side ◽  
Mud Bricks ◽  
Ground Penetrating ◽  
The Military

An archeological study using magnetic and ground-penetrating radar methods has been performed at the Dahshour region (Giza, Egypt), where various covered structures have not been found because of the long coercion of the zone under the military specialists. Dahshour is the southern extension of the Saqqara and Giza Pyramids plateau, around 25 km south of Cairo. The area is known for its colored pyramids—the white, red, and black pyramids, and the famous Bent Pyramid. Four investigation sites were chosen around the Bent Pyramid complex. The geophysical investigation has revealed the presence of some buried structures made up of mud bricks such as tombs, mud-brick walls, causeway, and remains of an ancient temple. Numerous limestone blocks were also detected. The study indicates the possible existence of an older valley temple made up of mud bricks and confirms the existence of another causeway that led to the Nile Valley. To protect the Egyptian heritage around this vital area, a detailed computation of the current crustal stress/strain state has been performed by taking into account all the available GPS observations. Achieved results indicated that the southern and the southeastern sectors of the investigated area are currently accumulating strain, and this means that there is a possibility for future earthquakes to occur around this vital archaeological area. Buried structures are preserved by confinement in the burial materials like a large mold. However, external load or stress can still cause damage. Therefore, during excavation, the stress should be reduced to avoid wall collapsing and structure damage. Therefore, it is recommended to start excavation from the stress direction from the southern side.

scholarly journals Concrete Slabs’ Initial Cracks Assessment using Ground Penetrating Radar

2018 ◽  
Vol 8 (02) ◽  
Author(s):  
Abdul Razzak T. Ziboon ◽  
Nisreen S. Mohammed ◽  
Nisreen S. Mohammed ◽  
Anaam G. Hamad
Keyword(s):  
Ground Penetrating Radar ◽  
Service Providers ◽  
Fatigue Cracking ◽  
Concrete Slabs ◽  
Destructive Testing ◽  
Buried Structures ◽  
Near Surface ◽  
Multiple Group ◽  
Failure Loads ◽  
Ground Penetrating

Ground-Penetrating Radar (GPR) is extensively used by a multiple group of service providers that incorporate agronomist, archaeologists, criminologists, engineers, environmental specialists, foresters, geologists, geophysicists, hydrologists, land use managers, and soil scientists. In engineering applications include Non-Destructive Testing (NDT) of structures and pavements and locating buried structures etc. GPR is a relatively new geophysical tool that has become increasingly popular due to its high resolution and the need to better understand near-surface conditions. In this paper GPR is applied to six concrete slabs. Radar measurements were performed using a 1000 MHz RAMAC GPR CU-II. Two concrete slabs weren’t reinforced, two have simple reinforcement, and the last two have artificial gaps in their reinforcement. Tests were taken after applying 40% of the slabs’ failure loads. Experiments resulted that the extent and severity of the fatigue cracking was possible to be monitored. In addition, the technique was assistive in determining the failure caused by loading reflected by radargrams.

scholarly journals Ground-Penetrating Radar Prospections in Lecce Cathedral: New Data about the Crypt and the Structures under the Church

2021 ◽  
Vol 13 (9) ◽  
pp. 1692
Author(s):  
Giovanni Leucci ◽  
Lara De Giorgi ◽  
Immacolata Ditaranto ◽  
Ilaria Miccoli ◽  
Giuseppe Scardozzi
Keyword(s):  
Ground Penetrating Radar ◽  
Buried Structures ◽  
South Italy ◽  
Apulia Region ◽  
12Th Century ◽  
Ground Penetrating ◽  
The Town ◽  
The Church

Lecce is a city located in the southern part of the Apulia region (south Italy). Its subsoil is rich in the remains of superimposed ancient settlements from the Messapian period (7th–3rd century BC) to the Roman, Medieval, Renaissance, and Baroque periods. Lecce Cathedral is one of the most important buildings in the town. It was built in the 12th century and transformed in the 16th and 17th centuries. Ground-penetrating radar (GPR) surveys were carried out in the cathedral and its crypt with the aim to evidence both probably buried structures related to the known crypt and other features such as tombs. The GPR investigations allow us to locate many features under the floor of the church. Some of them are unknown and could belong to the previous building of the Romanesque period. Furthermore, most of the identified structures are related to tombs and underground rooms (ossuaries). Under the crypt floor, six tombs of the 19th and 20th centuries and other ancient structures were documented.

REFLECTION COEFFICIENT OF AN ELECTROMAGNETIC WAVE IN CONDUCTIVE MEDIA

2018 ◽  
pp. 100-106
Author(s):  
M. S. Sudakova ◽  
M. L. Vladov ◽  
M. R. Sadurtdinov
Keyword(s):  
Reflection Coefficient ◽  
Ground Penetrating Radar ◽  
Electromagnetic Waves ◽  
Water Contamination ◽  
Survey Design ◽  
Direct And Inverse Problems ◽  
The Difference ◽  
Ground Penetrating ◽  
Ideal Dielectric

Within the ground penetrating radar bandwidth the medium is considered to be an ideal dielectric, which is not always true. Electromagnetic waves reflection coefficient conductivity dependence showed a significant role of the difference in conductivity in reflection strength. It was confirmed by physical modeling. Conductivity of geological media should be taken into account when solving direct and inverse problems, survey design planning, etc. Ground penetrating radar can be used to solve the problem of mapping of halocline or determine water contamination.

Deteksi Bentuk Objek Bawah Tanah Menggunakan Pengolahan Citra B-Scan pada Ground Penetrating Radar (GPR)

2017 ◽  
Vol 3 (1) ◽  
pp. 73-83
Author(s):  
Rahmayati Alindra ◽  
Heroe Wijanto ◽  
Koredianto Usman
Keyword(s):  
Signal Processing ◽  
Ground Penetrating Radar ◽  
Post Processing ◽  
Data Survey ◽  
Ground Penetrating

Ground Penetrating Radar (GPR) adalah salah satu jenis radar yang digunakan untuk menyelidiki kondisi di bawah permukaan tanah tanpa harus menggali dan merusak tanah. Sistem GPR terdiri atas pengirim (transmitter), yaitu antena yang terhubung ke generator sinyal dan bagian penerima (receiver), yaitu antena yang terhubung ke LNA dan ADC yang kemudian terhubung ke unit pengolahan data hasil survey serta display sebagai tampilan output-nya dan post  processing untuk alat bantu mendapatkan informasi mengenai suatu objek. GPR bekerja dengan cara memancarkan gelombang elektromagnetik ke dalam tanah dan menerima sinyal yang dipantulkan oleh objek-objek di bawah permukaan tanah. Sinyal yang diterima kemudian diolah pada bagian signal processing dengan tujuan untuk menghasilkan gambaran kondisi di bawah permukaan tanah yang dapat dengan mudah dibaca dan diinterpretasikan oleh user. Signal processing sendiri terdiri dari beberapa tahap yaitu A-Scan yang meliputi perbaikan sinyal dan pendektesian objek satu dimensi, B-Scan untuk pemrosesan data dua dimensi  dan C-Scan untuk pemrosesan data tiga dimensi. Metode yang digunakan pada pemrosesan B-Scan salah satunya adalah dengan  teknik pemrosesan citra. Dengan pemrosesan citra, data survey B-scan diolah untuk didapatkan informasi mengenai objek. Pada penelitian ini, diterapkan teori gradien garis pada pemrosesan citra B-scan untuk menentukan bentuk dua dimensi dari objek bawah tanah yaitu persegi, segitiga atau lingkaran. 

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