Elimination of Initial Rotation Error in Portable Borehole Deflectometers
Publication: Journal of Geotechnical Engineering
Volume 117, Issue 12
Abstract
The mechanism and causes of the initial rotation error encountered in portable borehole deflectometers are described. The error is viewed as a systematic propagation of any discrepancy that affects the precise correlating of movements to the reference of measurement. A simple method, called reverse analysis, is proposed that helps rectify the measured movement profiles.
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References
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Dutro, H. B. (1977). “Borehole measurements using portable borehole deflecto‐meter.” Proc., 18th Symp. on Rock Mech., Colorado School of Mines Press, 5C4‐1–5.
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O'Rourke, T. D., and Kumbhojkar, A. S. (f984). “Field testing of cast iron pipeline response to shallow trench excavation.” Geotechnical Engineering Report, 84–3, School of Civ. and Envir. Engrg., Cornell Univ., Ithaca, N.Y., 328.
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Information & Authors
Information
Published In
Journal of Geotechnical Engineering
Volume 117 • Issue 12 • December 1991
Pages: 1949 - 1955
Copyright
Copyright © 1991 ASCE.
History
Published online: Dec 1, 1991
Published in print: Dec 1991
Authors
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