Subsurface detection at a certain location
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Disaster emergency response
Ground Penetrating Radar (GPR) is an effective exploration method in geological prospecting, and its application range is continuously expanding. The principle of GPR promotes its feasibility in geological hazard investigation. Through GPR, precise detection can be achieved in aspects such as ground cracks, cave collapses, overburden detection, and landslides.
Location 1:
(Survey Line Direction)
Description: Data acquisition was conducted along the survey line direction. The data image shows 21ns a suspected pipeline feature image (hyperbolic image). In the horizontal direction 640-1280 traces, a clear layered interface can be seen. The depth in the vertical direction is between 31ns-72ns and the maximum depth reaches 3.6m . Due to the wet ground from rain, 3.6m the layered interface after this point cannot be clearly seen.
Location 2:
(Survey Line Direction)
(1)
Description: Data acquisition was conducted along the survey line direction. High-voltage cables can be seen overhead in the on-site images. In the data image, the interference from the power lines has been marked. In the current data image, there is a clear layered interface in the vertical direction 47.8ns-105ns and depth 1.9m-4.2m This layered interface is inferred to be the boundary between the bedrock surface and the overburden layer on the bedrock surface.
(2)
Description:
Data image one was verified; the results are shown in the figure. Data acquisition was conducted in the opposite direction along the survey line of data image one. The data obtained shows a clear layered interface in the vertical direction 47.8ns-105ns and depth 1.9m-4.2m This verifies the layered interface conclusion obtained from data image one. Therefore, the final measured thickness of the overburden layer on the bedrock surface can be obtained as 4.2m approximately.
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