Chapter
Jul 6, 2017
Assessment of Jet Grout Column Diameter during Construction Using Electrical Resistivity Imaging
Authors: Michael A. Mooney, Ph.D., M.ASCE [email protected], and Richard G. Bearce, Ph.D. [email protected]Author Affiliations
Publication: Grouting 2017
Abstract
This paper presents the implementation of an electrical resistivity push probe to estimate the diameter of jet grout columns. The probe is pushed into the jet grout column immediately after mixing and removed such that no damage is done to the column. The probe allows direct coupling of electrodes to the soilcrete, providing a demonstrated improvement over existing techniques. Field testing was conducted on columns with diameters ranging from 0.9 m to 2.5 m at two sites, in Berlin, Germany, and Miami, Florida. The results show that the technique routinely estimates the diameter to be within 5% of the as-built diameter.
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Published In
Grouting 2017
Pages: 42 - 51
Copyright
© 2017 American Society of Civil Engineers.
History
Published online: Jul 6, 2017
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Authors
Affiliations
Center for Underground Construction and Tunneling, Colorado School of Mines, 1500 Illinois St., Golden, CO 80401. E-mail: [email protected]
United States Bureau of Reclamation, Denver Federal Center, P.O. Box 25007(86-68530), Denver, CO 80225. E-mail: [email protected]
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.