SYMPOSIA PAPER Published: 01 January 1985
STP19281S

The Calibration and Use of a High Capacity Pressuremeter to Determine Rock Stiffness

Source

Rubber membrane type pressuremeters are in common use worldwide for the determination of the in situ deformation characteristics of rock. Standard correction values and data reduction methods quoted by the equipment manufacturer are conventionally used to process pressuremeter test data. A basic assumption of the data reduction procedure is that the rubber membrane behaves elastically. However problems experienced with the non-elastic behaviour of a thick rubber membrane during an investigation in the UK resulted in a complete reassessment of calibration techniques and data reduction procedures. Revised on site calibration and test procedures are proposed, together with a simple method for data reduction and modulus determination. It is apparent that frequent and stringent calibration of the pressuremeter test equipment is essential to avoid errors in both data reduction and modulus determination.

Author Information

Bacciarelli, RE
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Details
Developed by Committee: D18
Pages: 75–96
DOI: 10.1520/STP19281S
ISBN-EB: 978-0-8031-4957-1
ISBN-13: 978-0-8031-0454-9