SYMPOSIA PAPER Published: 01 January 1990
STP25302S

The Wak Test to Check the Increase in Soil Stiffness Due to Dynamic Compaction

Source

A test is proposed to check the increase in soil stiffness brought about by dynamic compaction. It consists of hitting the dynamic compaction weight, after it has been dropped by the crane and while it is resting on the ground, with an instrumented sledge hammer, recording the response of the weight through geophones simply placed on the weight. The analysis of the recorded signals gives the stiffness of the soil under the weight. The test is of very short duration and can be used after the weight has been dropped a number of times with the crane at one location to decide whether the soil has become stiff enough or if further compaction is necessary. The test is particularly useful for waste fills where other more conventional tests to check the increase in soil stiffness are very difficult if not impossible to perform.

Author Information

Briaud, J-L
Liu, M-L
Lepert, Ph
Price: $25.00
Contact Sales
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Developed by Committee: D18
Pages: 107–122
DOI: 10.1520/STP25302S
ISBN-EB: 978-0-8031-5130-7
ISBN-13: 978-0-8031-1285-8