scholarly journals INTERPRETATION OF COAL POTENTION USING GROUND PENETRATING RADAR (GPR) METHOD

2018 ◽  
Vol 10 (1) ◽  
pp. 23
Author(s):  
Rohmatul Wahidah ◽  
Abdul Basid
Keyword(s):  
Ground Penetrating Radar ◽  
Alternative Energy ◽  
Potential Distribution ◽  
Color Pattern ◽  
Geological Structure ◽  
Structure Identification ◽  
Alternative Energy Source ◽  
Energy Needs ◽  
Yellow Color ◽  
Ground Penetrating

<pre>Coal exposure founded at Klatak Kebo Ireng village in Besuki Tulungagung precisely in the vicinity of the river. Energy needs is increasing so the coal used for one of alternative energy source that can be used by society. This study was conducted to determine of the potential distribution coal modeling on geological structure. Identification of coal structure is using Ground Penetrating Radar (GPR) 2005 it conducted because this method is more suitable for shallow of surveys. The location for taking data is around the river that showed to exposure. There are 5</pre><sup>th</sup> lines of taken data with length about 50 until 100 meters. Data processing was done using of software Future series 2005. The data displayed with software in the color pattern to obtain based on the constant of dielectric and conductivity. The results of interpretation study are the data indicates that there is a coal on the overall trajectory. Only in 2<sup>nd</sup> track contain little of coal. The Coal layers are appear in processing the results of data is thickness about 6 at the top. In the area of study also found the cavity (cavity area) which contained of several tracks. On the bottom of the track there is a pattern of coal reddish of yellow color which indicates that material contains of minerals.

Nondestructive Test on Typical Roadway Supports of a Mine via Drilling Core and Ground Penetrating Radar

2011 ◽  
Vol 368-373 ◽  
pp. 2411-2416
Author(s):  
Jian Ping Han ◽  
Hai Peng Liu
Keyword(s):  
Ground Penetrating Radar ◽  
Geological Structure ◽  
Surrounding Rock ◽  
Potential Threat ◽  
Real Performance ◽  
Design Requirements ◽  
And Performance ◽  
The Stability ◽  
Ground Penetrating ◽  
Drilling Core

Temporary or permanent supports are necessary in underground construction for maintaining the stability and limiting the damage of surrounding rock. Due to the uncertainty of geological structure, the specificity of the underground environment as well as other factors, the quality and performance of supporting structure are often difficult to satisfy the design requirements, which not only seriously affects the normal construction and operation of mines but also has the potential threat to the safety of underground production. In order to investigate the influence of the unfavorable geologic environment on supporting concrete and evaluate the real performance of roadway supports of a mine, 17 typical projects were chosen and the strength of supporting concrete was detected by nondestructive drilling core method. The result shows that the strength is widely less than the design value. Furthermore, 4 projects of them were investigated by the ground penetrating radar (GPR) in order to evaluate the feasibility of GPR in the performance investigation of the roadway supports of a mine. The results indicate that ground penetrating radar is capable of measuring the thickness of the support, the distribution of rebars and the defects of the surrounding rock.

scholarly journals Applicability of Ground Penetrating Radar on desert archaeological sites: a case study from the Saqqara necropolis in Egypt

2014 ◽  
Vol 31 (2) ◽  
pp. 133-141 ◽  
Author(s):  
Fabian Welc ◽  
Radosław Mieszkowski ◽  
Sebastian Kowalczyk ◽  
Jerzy Trzciński
Keyword(s):  
Ground Penetrating Radar ◽  
Clay Fraction ◽  
Mineralogical Composition ◽  
Archaeological Site ◽  
Geological Structure ◽  
Horizontal Resolution ◽  
Archaeological Sites ◽  
Depth Range ◽  
Non Invasive ◽  
Ground Penetrating

Abstract This paper presents the preliminary results of ground penetrating radar sounding applied at the desert archaeological site in Saqqara (Egypt). The survey was carried out in 2012 within a project realized by Institute of Archaeology, Cardinal Stefan Wyszyński University in Warsaw and the Faculty of Geology, University of Warsaw. One of the key aims of the research was testing the application of ground penetrating radar to non-invasive surveys of desert archaeological sites. Radargrams obtained for area of so called the Dry Moat channel surrounding the Step Pyramid complex have shown the geological structure of its filling. It comprises among others debris-sand conglomerate of diluval origin characterized by a significant content of the clay fraction and clay minerals. Such lithological content strongly attenuate the propagation of EM waves, restricting the depth range of the GPR survey. The conducted geophysical prospection west to the Step Pyramid in Saqqara has confirmed the high applicability of the GPR method in non-invasive studies of vast architectural structures, such as the monumental ditch surrounding the Step Pyramid known as the Dry Moat. It should summarised that high horizontal resolution obtained during GPR survey is a result of local geological structure of the searched area, i.e. strong lithological contrast of the sediments filling the Dry Moat, which, depending on their mineralogical composition

scholarly journals Ground penetrating radar and electrical resistivity tomography for locating buried building foundations: A case study in the city centre of Thessaloniki, Greece

2016 ◽  
Vol 47 (3) ◽  
pp. 1355
Author(s):  
G. Vargemezis ◽  
N. Diamanti ◽  
I. Fikos ◽  
A. Stampolidis ◽  
Th. Makedon ◽  
...  
Keyword(s):  
Electrical Resistivity ◽  
Ground Penetrating Radar ◽  
Electrical Resistivity Tomography ◽  
Geophysical Methods ◽  
Geological Structure ◽  
City Centre ◽  
High Resistivity ◽  
Resistivity Tomography ◽  
Ground Penetrating ◽  
The City

Ground penetrating radar (GPR) and electrical resistivity tomography (ERT) surveys have been carried out in the city centre of Thessaloniki (N. Greece), for investigating possible locations of buried building foundations. Geophysical survey has been chosen as a non-destructive investigation method since the area is currently used as a car parking and it is covered by asphalt. The geoelectrical sections derived from ERT data in combination with the GPR profiles provided a broad view of the  subsurface.  Regarding  ERT,  high  resistivity  values  can  be  related  to  buried building remains, while lower resistivity values are more related to the surrounding geological materials. GPR surveying can also indicate man-made structures buried in the ground. Even though the two geophysical methods are affected in different ways by the subsurface conditions, the processed underground images from both techniques revealed great similarity. High resistivity anomalies and distinct GPR signals were observed in certain locations of the area under investigation, which are attributed to buried building foundations as well as the geological structure of the area.

scholarly journals Ground penetrating radar and electrical resistivity tomography for locating buried building foundations: A case study in the city centre of Thessaloniki, Greece

2016 ◽  
Vol 47 (3) ◽  
pp. 1355
Author(s):  
G. Vargemezis ◽  
N. Diamanti ◽  
I. Fikos ◽  
A. Stampolidis ◽  
Th. Makedon ◽  
...  
Keyword(s):  
Electrical Resistivity ◽  
Ground Penetrating Radar ◽  
Electrical Resistivity Tomography ◽  
Geophysical Methods ◽  
Geological Structure ◽  
City Centre ◽  
High Resistivity ◽  
Resistivity Tomography ◽  
Ground Penetrating ◽  
The City

Ground penetrating radar (GPR) and electrical resistivity tomography (ERT) surveys have been carried out in the city centre of Thessaloniki (N. Greece), for investigating possible locations of buried building foundations. Geophysical survey has been chosen as a non-destructive investigation method since the area is currently used as a car parking and it is covered by asphalt. The geoelectrical sections derived from ERT data in combination with the GPR profiles provided a broad view of the  subsurface.  Regarding  ERT,  high  resistivity  values  can  be  related  to  buried building remains, while lower resistivity values are more related to the surrounding geological materials. GPR surveying can also indicate man-made structures buried in the ground. Even though the two geophysical methods are affected in different ways by the subsurface conditions, the processed underground images from both techniques revealed great similarity. High resistivity anomalies and distinct GPR signals were observed in certain locations of the area under investigation, which are attributed to buried building foundations as well as the geological structure of the area.

scholarly journals Identification of Unstable Subsurface Rock Structure Using Ground Penetrating Radar: An EEMD-Based Processing Method

2020 ◽  
Vol 10 (23) ◽  
pp. 8499
Author(s):  
Yang Jin ◽  
Yunling Duan
Keyword(s):  
Ground Penetrating Radar ◽  
Structural Safety ◽  
Structure Identification ◽  
Intrinsic Mode Functions ◽  
Local Modes ◽  
Rock Quality ◽  
Underground Caverns ◽  
Rock Structure ◽  
Ground Penetrating ◽  
Unstable Rock

Surrounding rock quality of underground caverns is crucial to structural safety and stability in geological engineering. Classic measures for rock quality investigation are destructive and time consuming, and therefore technology evolution for efficiently evaluating rock quality is significantly required. In this paper, the non-destructive technology ground penetrating radar (GPR) assisted by an ensemble empirical mode decomposition (EEMD)-based signal processing approach is investigated for identifying unstable subsurface rock structures. By decomposing the pre-processed GPR signals into multiple intrinsic mode functions (IMFs) and residues, one typical IMF can preserve the distinct local modes and is considered to reconstruct the subterranean profile. Promising results have been achieved in simple scenarios and filed measurements. The reconstructed profiles can accurately illustrate the subsurface interfaces and eliminate the interference signals. Unstable rock structures have been identified in further field applications. Therefore, the developed approach is efficient in unstable rock structure identification.

scholarly journals Studi Geofisika Untuk Menentukan Batas Formasi Jampang dan Formasi Ciletuh di Kawasan Geopark Ciletuh

Wahana Fisika ◽  
2017 ◽  
Vol 2 (2) ◽  
pp. 31
Author(s):  
Cece Solihin ◽  
Arizal Taufik ◽  
Firman Hadi Muhamad ◽  
Rena Denya
Keyword(s):  
Ground Penetrating Radar ◽  
Geophysical Methods ◽  
Data Retrieval ◽  
Fine Sand ◽  
Geological Structure ◽  
Tectonic Activity ◽  
General View ◽  
Sandstone Rock ◽  
Regional Tectonic ◽  
Ground Penetrating

Kawasan Ciletuh memiliki struktur geologi yang khas dan unik serta memiliki  aneka ragam batuan yang tersebar.  Pandangan umum dari ilmu kebumian kawasan ini sangat menarik untuk dipelajari  karena geologi kawasan ini terbentuk  tidak  lepas dari aktivitas tektonik regional Jawa Barat. Studi geofisika sangat berguna dalam menganalisa struktur geologi bawah permukaan tanah  di kawasan Ciletuh. Metode geofisika yang digunakan bertujuan untuk mengamati dan menganalisis struktur geologi batuan permukaan. Serta, tujuan utama dari penelitian ini untuk menentukan batas formasi Jampang dengan formasi Ciletuh. Penelitian ini digunakan pengambilan data dengan metode Geolistrik, Magnetik dan Ground Penetrating Radar (GPR) di daerah Tamanjaya, kawasan Ciletuh dengan lintasan yang berbeda. Berdasarkan interpretasi geolistrik pada software Res2Dinv 2D diperoleh struktur bawah permukaan berupa lapisan batuan pasir. Pada hasil interpretasi metode GPR pola perambatan serta kecepatan rambat gelombang elektromagnetik untuk  dua lintasan  GPR  memiliki perbedaan struktur batuan yaitu  batuan pasir kasar, kerikil dan endapan. Sedangkan hasil interpretasi magnetik mengindikasi perbedaan struktur  batuan dalam bawah  permukaan berdasarkan anomali magnetik. Berdasarkan geologi regional formasi Jampang bawah didominasi oleh batuan  pasir halus. Sedangkan formasi Ciletuh didominasi oleh batuan  pasir kasar yang berumur lebih tua. Sehingga  batas formasi Jampang  dengan  batas formasi Ciletuh dapat diperkirakan pada lintasan GPR dan Magnetik.      Kata Kunci   :  Formasi Jampang; Formasi Ciletuh; Geolistrik; GPR dan MagnetikThe Ciletuh region has a distinctive and unique geological structure and also has a various of rocks scattered. The general view of the geography of this region is very interesting to learn because the geology of this region formed can not be sparated from the regional tectonic activity of west java. Geophysical studies are very useful in analyzing the subsurface geological structures in the Ciletuh region. The geophysical methods used aims to observe and analyze the geological structure of surface rocks. As well, the main purpose of this research is to determine the boundary of Jampang formation with Ciletuh formation. This research used data retrieval using Geoelectric, Magnetic and Ground Penetrating Radar (GPR) methods in Tamanjaya area, Ciletuh area with a different trajectory. Based on the geoelectric interpretation from Res2Dinv of software, there is obtained a subsurface structure in the form of sandstone layer. The results of the interpretation of GPR methods, propagation patterns and electromagnetic wave velocity for 2 trajectories have structural abnormalities, ie sandstone rock, gravel and sediment. Whereas the results of magnetic interpretation indicate difference in surface rocks structure based on magnetic anomlies. Base on the regional geology of the lower Jampang formation is dominated by fine sand rock while the formation of Ciletuh is dominated by  Rugged Sandstone rocks that was older. So the boundary of formation Jampang with baoundary formations Ciletuh can be estimate at GPR and Magnetic trajectory.Keywords  :  Jampang Formations; Ciletuh Formations; Geoeletric; GPR; and Magnetic

scholarly journals Ketahanan Energi Gas Alam Turki Pasca Konstruksi Tanap (Trans-Anatolian Pipeline)

2019 ◽  
Vol 5 (2) ◽  
pp. 199-226
Author(s):  
Sandy Angga Hikmata ◽  
Muhamad Syauqillah
Keyword(s):  
Energy Source ◽  
Natural Gas ◽  
Energy Distribution ◽  
Energy Security ◽  
Energy Supply ◽  
Alternative Energy ◽  
Low Energy ◽  
Average Increase ◽  
Alternative Energy Source ◽  
Energy Needs

Abstrak             Penelitian ini mengkaji tentang perubahan ketahanan energi Turki setelah TANAP (Trans-Anatolian Pipeline) berhasil dibangun di Turki pada Juni 2018. TANAP merupakan proyek yang dibangun atas kerjasama Turki dan Azerbaijan. Turki merupakan negara dengan kebutuhan energi yang sangat tinggi dan kebutuhan ini meningkat sebanyak 8% per tahunnya. Untuk memenuhi kebutuhan energinya, Turki sangat bergantung pada distribusi energi dari Rusia dalam bentuk gas alam. Namun, hubungan yang tidak stabil antara Rusia dan Ukraina membuat distribusi energi dari Rusia sering terhambat dan besarnya ketergatungan Turki terhadap sumber energi Rusia menyebabkan ketahanan energi Turki berada dalam kondisi yang tidak baik. Hal ini kemudian menggerakkan Turki untuk mencari sumber energi alternatif untuk mengatasi ketergantungan energi terhadap Rusia ini. Tesis ini pertama-tama akan menganalisa hubungan interdependensi dalam hubungan energi yang berpotensi bersifat asimetris antara Turki dan Rusia dan implikasi yang ditimbulkan dari hubungan asimetris ini. Setelah itu peneliti akan mengkaji pengaruh TANAP terhadap ketahanan energi gas alam di Turki dan pengaruhnya terhadap perubahan interdependensi antara kedua negara. TANAP ternyata tidak terlalu merubah interdependensi energi Turki terhadap Rusia secara signifikan. Abstract               This paper reviews the change of Turkey’s energy security after Turkey managed to construct TANAP (Trans-Anatolian Pipeline) at June 2018. TANAP is a project built within cooperation between Turkey and Azerbaijan. Turkey is a country with vast energy needs with average increase of 8% per year. To meet their energy needs, Turkey highly rely on energy from Russia’s natural-gas. However, fragile relation between Russia and Ukraine caused energy distribution from Russia agitated, and Turkey’s high reliance on Russia’s energy supply causing Turkey in a low energy security state. For this reason, Turkey is looking for alternative energy source to overcome their high reliance on Russia’s natural gas. This thesis firstly will analyze interdependence relationship in the context of energy between Turkey and Russia that potentially has asymmetric nature and the implication that could arises in that relationship. Afterwards, author will review how TANAP change Turkey’s natural-gas security and how it changes interdependency between the two countries. As a result, TANAP does not significantly change Turkey-Russia interdependence. 

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