scholarly journals Investigation of Shallow Fault Structures Using Ground Penetrating Radar Method in Gampong Pangwa Trienggadeng District, Pidie Jaya Regency

2019 ◽  
Vol 8 (2) ◽  
pp. 35-40
Author(s):  
Ayu Safrida ◽  
Nazli Ismail ◽  
Marwan Marwan
Keyword(s):  
Ground Penetrating Radar ◽  
Large Scale ◽  
Ground Movement ◽  
Subsurface Structure ◽  
Profile Data ◽  
The Road ◽  
Subsurface Structures ◽  
Fault Structures ◽  
Fault Trace ◽  
Ground Penetrating

Wilayah Aceh merupakan wilayah yang sering terjadi gempa bumi dengan skala besar. Salah satu gempa bumi dengan skala besar adalah Gempa Pidie Jaya yang terjadi pada 7 Desember 2016. Setelah terjadi gempa bumi, banyak terjadi pergerakan tanah yang ditemukan di area penelitian. Telah dilakukan serangkaian pengukuran menggunakan Ground Penetrating Radar (80 MHz) untuk mempelajari struktur bawah permukaan setelah terjadinya gempa bumi. Penelitian ini dilakukan di Desa Pangwa, Kecamatan Trienggadeng, Kabupaten Pidie Jaya. Pengukuran dilakukan di sepanjang jalan di Desa Pangwa yang melintasi dua jembatan. Pengukuran dilakukan pada 18 lintasan dengan panjang masing–masing lintasan sepanjang 50 m. Pengolahan data dilakukan dengan menggunakan software GRED. Berdasarkan hasil radargram, kita menemukan struktur pemukaan dangkal berupa patahan di tengah gambaran radargram pada lintasan 13 yang disebabkan oleh terjadinya gempa di Pidie Jaya. The Aceh region is an area of frequent large-scale earthquakes. One of the earthquakes with a large scale is Pidie Jaya Earthquake that occurred on December 7, 2016. After the earthquake, many ground movement evidences were found in the area. The ground penetrating radar (80 MHz) measurement is used to study subsurface structures after the earthquake. This research was conducted in Pangwa Village, Trienggadeng Subdistrict, Pidie Jaya District. Measurements were carried out along the road in Pangwa Village which crossed two bridges. Data measurements were made along 18 profiles with 50 m length of each profile. Data processing were done by using GRED software. Based on processed radargrams, we found a fault trace at the middle of the profile lane 13 caused by the newest earthquake in Pidie Jaya. Keywords: Ground Penetrating Radar, Subsurface structure, electromagnetic wave velocity

3d Ground Penetrating Radar for Non-Invasive Large-Scale Tank Investigation

2021 ◽  
Author(s):  
L. Guireli Netto ◽  
V.L. Galli ◽  
P. Del Gaudio Orlando
Keyword(s):  
Ground Penetrating Radar ◽  
Large Scale ◽  
Non Invasive ◽  
Ground Penetrating

Joint full-waveform GPR and ER inversion applied to field data acquired on the surface

Geophysics ◽  
2021 ◽  
pp. 1-77
Author(s):  
diego domenzain ◽  
John Bradford ◽  
Jodi Mead
Keyword(s):  
Ground Penetrating Radar ◽  
Joint Inversion ◽  
Waveform Inversion ◽  
Shallow Groundwater ◽  
Computational Domain ◽  
Alluvial Deposits ◽  
Subsurface Structures ◽  
Full Waveform ◽  
Stable Source ◽  
Ground Penetrating

We exploit the different but complementary data sensitivities of ground penetrating radar (GPR) and electrical resistivity (ER) by applying a multi-physics, multi-parameter, simultaneous 2.5D joint inversion without invoking petrophysical relationships. Our method joins full-waveform inversion (FWI) GPR with adjoint derived ER sensitivities on the same computational domain. We incorporate a stable source estimation routine into the FWI-GPR.We apply our method in a controlled alluvial aquifer using only surface acquired data. The site exhibits a shallow groundwater boundary and unconsolidated heterogeneous alluvial deposits. We compare our recovered parameters to individual FWI-GPR and ER results, and to log measurements of capacitive conductivity and neutron-derived porosity. Our joint inversion provides a more representative depiction of subsurface structures because it incorporates multiple intrinsic parameters, and it is therefore superior to an interpretation based on log data, FWI-GPR, or ER alone.

Model Track Studies by Ground Penetrating Radar (GPR) on Ballast With Different Fouling and Geotechnical Properties

2015 ◽  
Author(s):  
Hamed Faghihi Kashani ◽  
Carlton L. Ho ◽  
Charles P. Oden ◽  
Stanley S. Smith
Keyword(s):  
Ground Penetrating Radar ◽  
Large Scale ◽  
Empirical Studies ◽  
Geotechnical Properties ◽  
Maintenance Cost ◽  
Non Invasive ◽  
Section Area ◽  
University Of Massachusetts ◽  
Ground Penetrating ◽  
The University

In recent years there has been an increase in the knowledge of, and need for, non-invasive monitoring of ballast in order to identify the problematic sections of track and decrease the maintenance cost. Various technologies such as Ground Penetrating Radar (GPR) are becoming accepted for investigating the condition of ballast. However since these techniques were not originally developed for engineering applications, their applicability in ballast evaluations can be sometimes uncertain. Continued empirical studies and condition specific calibrations are needed to demonstrate repeatable and quantifiable results. In this study large-scale track models with trapezoidal section area were constructed at the University of Massachusetts to investigate the effects of breakdown fouling, and the effects of changing geotechnical properties on GPR traces. This paper presents the design and construction of large scale track models, and methods used for GPR data collection. GPR data are presented in this paper that demonstrate sensitivity to the track model properties and variables. In particular, the experiments are being used to evaluate changes in GPR data with changing geotechnical properties of the ballast such as density, water content, grain size distribution (GSD), and fouling percentage.

A Large-Scale Systematic Evaluation of Algorithms Using Ground-Penetrating Radar for Landmine Detection and Discrimination

2007 ◽  
Vol 45 (8) ◽  
pp. 2560-2572 ◽  
Author(s):  
Joseph N. Wilson ◽  
Paul Gader ◽  
Wen-Hsiung Lee ◽  
Hichem Frigui ◽  
K. C. Ho
Keyword(s):  
Ground Penetrating Radar ◽  
Large Scale ◽  
Landmine Detection ◽  
Systematic Evaluation ◽  
Ground Penetrating

scholarly journals Investigation of large-scale washover of a small barrier system on the southeast Australian coast using ground penetrating radar

2006 ◽  
Vol 183 (1-2) ◽  
pp. 145-156 ◽  
Author(s):  
Adam D. Switzer ◽  
Charles S. Bristow ◽  
Brian G. Jones
Keyword(s):  
Ground Penetrating Radar ◽  
Large Scale ◽  
Ground Penetrating

Ground-penetrating radar and coring used to study the large-scale structure of point-bar deposits in three dimensions

Sedimentology ◽  
1995 ◽  
Vol 42 (6) ◽  
pp. 839-852 ◽  
Author(s):  
JOHN S. BRIDGE ◽  
JAN ALEXANDER ◽  
RICHARD E. LL. COLLIER ◽  
ROB. L. GAWTHORPE ◽  
JACK JARVIS
Keyword(s):  
Ground Penetrating Radar ◽  
Large Scale ◽  
Large Scale Structure ◽  
Scale Structure ◽  
Three Dimensions ◽  
Point Bar ◽  
Ground Penetrating

scholarly journals Ecohydrologically important subsurface structures in peatlands revealed by ground-penetrating radar and complex conductivity surveys

2008 ◽  
Vol 113 (G4) ◽  
Author(s):  
Nicholas Kettridge ◽  
Xavier Comas ◽  
Andrew Baird ◽  
Lee Slater ◽  
Maria Strack ◽  
...  
Keyword(s):  
Ground Penetrating Radar ◽  
Complex Conductivity ◽  
Subsurface Structures ◽  
Ground Penetrating
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