Determining the Unconfined Compressive Strength of Cohesive Soil - Soil Properties: Testing, Measurement, and Evaluation - page 336

[B] Compression Data

(1) Proving ring calibration lb/in.

Applied Load per Unit Area

Elapsed Deformation Cross-Sectional Proving Axial

Time Dial, H Unit Strain, Area, A Ring Dial Load, P

(min.) (in.) (in./in.) (in. 2 ) (in.) (lb) lb/in. 2 lb/ft 2

(6) (5)

A 0
1

(6)
(4)

(3) H
H 0

(1) (2) (4) (5) proving ring (7) (8) (7) 144

calibration

lb/ft 2 Strain Rate %/min Unconfined compressive strength, q u

i.e., q u
2

lb/ft 2 Cohesion, c a b

336