SELF-BORING PRESSUREMETER STUDY OF SAN FRANCISCO BAY MUD--DISCUSSION AND CLOSURE

The discussers comment on the use of s sub u/p ratios from the laboratory UU and vane tests, and on the comparisons with similar ratios from CU triaxial tests. The second discusser notes that the instrument used by the authors, the Cambridge type self-boring pressuremeter, is now considerably improved. Recent work has also shown that it is possible to be more certain in the initial setting of the cutter. This coupled with cutter geometry, have meant that it is no longer a procedure of trial and error to determine the correct cutter setting. It is also possible, even in stiff clay, to attain driving rates up to a meter of drilling in ten minutes. The authors comment on the issues raised. The authors observe that the self-boring pressuremeter offers promise as a means to define the properties of soft clay soil. The device is useful because it not only can determine the shear strength of a soil, but also the stress-strain and pore pressure response and the lateral stress in the ground.

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Filing Info

  • Accession Number: 00334021
  • Record Type: Publication
  • Report/Paper Numbers: ASCE 16096
  • Files: TRIS
  • Created Date: Sep 16 1981 12:00AM