Rock Sockets in Soft Rock
Publication: Journal of Geotechnical Engineering
Volume 109, Issue 4
Abstract
This paper describes the results of two full scale rock socket load tests conducted in conjunction with the foundation design of a sulfur dioxide removal plant located at the Four Corners Generating Station near Farmington, New Mexico. The tests were conducted in a soft shaley sandstone with an average unconfined compressive strength less than 1,500 psi The strength parameters of the sandstone were investigated by means of laboratory triaxial shear tests as well as Menard pressure testing in the field. The sockets were loaded to a maximum of 2,000 kip and were monitored by sets of Carlson strain gages along the length of the socket and along the bottom diameter. The results of these tests indicate the skin resistance mobilized to be nonuniform and that socket length greater than 2 diam or 3 diam do not significantly affect socket capacity.
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Copyright © 1983 ASCE.
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Published online: Apr 1, 1983
Published in print: Apr 1983
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