Ground penetrating radar applications and implementations in civil construction

Spears, Macy; Hedjazi, Saman; Taheri, Hossein

doi:10.1080/24705314.2022.2142901

Cited by 8 publications

(5 citation statements)

References 62 publications

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“…As a result, based on data processing, it can be concluded that GPR is a non-destructive, fast, and economical method for evaluating road structures [7]. Through various data acquisition and processing techniques, studies have shown significant success in using GPR to gather information for verifying the state and condition of materials [8,9]. This technology helps overcome the constraint of insufficient cavity samples for 3D radar detection on intelligent learning model training, reduces algorithm training costs, and improves identification accuracy [10,11].…”

Section: Resultsmentioning

confidence: 99%

Underground utility inspection using ground penetrating radar

Sarah Tengku Amran,

Ridzuan Ahmad,

Hazreq Haron

et al. 2024

IOP Conf. Ser.: Mater. Sci. Eng.

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Underground utility refers to any below-ground line, installation, or structure used by a service or utility provider. Underground utility inspection is a process of examining the designated area that needs to be inspected in detail. The purpose of the inspection is to ensure that the underground utility is in good condition and to check for any faults. By using the ground penetrating radar (GPR), the technology can capture images below the surface of the ground using radio waves. The various data through previous references are used to discuss and analyse the capability of GPR for underground utility inspection to ensure its gives the best performance for the inspection. GPR technology has become an essential tool for locating buried utilities and preventing damage and accidents during construction projects. This paper explores various advancements in GPR technology, including data processing methods and scanning techniques, to improve the accuracy and effectiveness of underground utility mapping. The research presented in this paper highlights the abilities of GPR to inspect underground utilities. The GPR data used in this project was collected from the evaluation and verification facility (EVF) in the Malaysia Nuclear Agency. The accuracy of these predicted positions was validated from GPR data and compared with as-built drawings from the contractor. The alternative analysis approaches that could be applied to improve the GPR accuracy when the optimum conditions are not met are also discussed.

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Section: Resultsmentioning

confidence: 99%

Underground utility inspection using ground penetrating radar

Sarah Tengku Amran,

Ridzuan Ahmad,

Hazreq Haron

et al. 2024

IOP Conf. Ser.: Mater. Sci. Eng.

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“…GPR data acquisition was operated wirelessly from the deck of the dam with an iPad (Figure 4c). GPR is widely applied to solve archaeological [35,36], forensic [37,38], environmental [39], engineering [40], and agricultural [41] problems. GPR generates electromagnetic radio waves from an antenna that is pushed or pulled along the ground surface and records backscattered echoes from reflections off material changes in the subsurface [42].…”

Section: Methodsmentioning

confidence: 99%

Evaluating the Feasibility of Robotic Crawler Deployed Ground Penetrating Radar to Assess Repairs of a Concrete Hydroelectric Dam Spillway in Alabama, USA

Bigman¹

2023

Water

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Dams and the water systems they support must be monitored, maintained, and repaired when necessary so they can continue to provide benefits to the communities they serve. This study presents the methods and results from a robotic crawler-based ground penetrating radar (GPR) inspection of rehabilitated concrete from a hydroelectric dam spillway located in Alabama, USA. This spillway, which was recently inspected and repaired, showed evidence of spalling which indicated internal structural deterioration. Standard practice would leave these repairs uninspected or put the wellbeing of people at risk when deploying them on the spillway for manual inspections. GPR data were recorded from recently rehabilitated and resurfaced areas of the site to evaluate the capability of a remotely controlled robotic crawler system to assure repair quality efficiently and effectively. The results indicate that high quality data can be recorded from repairs without the need for manual inspection. The GPR was able to resolve repair length, thickness, number of reinforcements, reinforcement spacing, and cover depth. The study encountered several difficulties, and the author proposes future pathways of development for safely inspecting critical dam infrastructure with steep slopes and slippery, rough surfaces.

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“…Ground Penetrating Radar (GPR) is a geophysical method that utilizes reflected electromagnetic signals presented in the form of graphic images. According to Spears et al (2023) GPR is applied to the assessment of structures such as pavements, reinforced concrete, railway ballasts. Soil geological conditions and objects planted in the ground.…”

Section: Ground Penetrating Radar (Gpr)mentioning

confidence: 99%

Ground Penetrating Radar Signals, An Efficient Way to Estimate Fouled Ballast

Jaya Saputra,

Kuo

2023

IGJ

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Mud pumping is a serious problem in railroad structures. Mud is often found in ballast structures, which can decrease the lifespan of sleepers and rail structures. Currently, the role of ground penetrating radar in investigating ballast condition is more useful than visual inspection. Ground penetrating radar can see the condition inside the ballast with the reflection of high-speed electromagnetic waves. One of the outputs from the ground penetrating radar is the graph of the signal reflection strength. Electromagnetic waves in ground penetrating radar have different reflectance strengths depending on the interfaces between different materials they pass through. For example, water-like material has a stronger signal reflection strength than gravel and soil. There are different colors used to indicate the level of signal reflection strength. Bright colors indicate a stronger level of signal reflection strength compared to dark colors. It has already been found that the dark colors of the scanning results are fouled ballast, respectively. To interpret fouled ballast conditions on the ground penetrating radar output graph, it is necessary to sort out the different colors. Therefore, this study aims to utilize design software to facilitate color selection on the ground penetrating radar output graph and determines the estimation of fouled ballast.

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Ground penetrating radar applications and implementations in civil construction

Cited by 8 publications

References 62 publications

Underground utility inspection using ground penetrating radar

Underground utility inspection using ground penetrating radar

Evaluating the Feasibility of Robotic Crawler Deployed Ground Penetrating Radar to Assess Repairs of a Concrete Hydroelectric Dam Spillway in Alabama, USA

Ground Penetrating Radar Signals, An Efficient Way to Estimate Fouled Ballast

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