Detection of Subsurface Deformations Under Cyclic Loads using GPR

V, Vinay Kumar and Rayabharapu, Vijay Kumar and Saride, Sireesh (2014) Detection of Subsurface Deformations Under Cyclic Loads using GPR. In: Indian Geotechnical Conference (IGC-2014), 18-20 December 2014, Andhra Pradesh, India.

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Abstract

Ground Penetrating Radar (GPR) is one of the most efficient non-destructive geophysical techniques used for subsurface investigations like detection of buried objects, underground life lines such as water mains, storage tanks and to some extent, void spaces in retaining structures and embankments. Identification of various shear failure surfaces generated due to static or cyclic loading on subgrade soils is very difficult. In this study, 1.6 GHz high frequency antenna has been used to predict the failure patterns of densified sand bed overlying weak subgrade layers in a 1m3 test tank, with and without geocell reinforcement. Radar-grams were generated before and after a repeated traffic load equivalent to the contact pressure of 550 kPa applied on the test bed. The radargrams obtained were analyzed using 3D Vision software for detecting the subsurface deformations.

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IITH Creators:	IITH Creators ORCiD Saride, Sireesh UNSPECIFIED
Item Type:	Conference or Workshop Item (Paper)
Subjects:	Civil Engineering
Divisions:	Department of Civil Engineering
Depositing User:	Library Staff
Date Deposited:	09 Sep 2019 08:37
Last Modified:	09 Sep 2019 08:37
URI:	http://raiithold.iith.ac.in/id/eprint/6155
Publisher URL:	https://www.researchgate.net/publication/274385800...
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