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Developments in a non‐destructive method of determining rock strength: A reply
Author(s) -
Allison Robert J.
Publication year - 1991
Publication title -
earth surface processes and landforms
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.294
H-Index - 127
eISSN - 1096-9837
pISSN - 0197-9337
DOI - 10.1002/esp.3290160509
Subject(s) - schmidt hammer , hammer , geotechnical engineering , geology , field (mathematics) , rock mechanics , mining engineering , compressive strength , engineering , mathematics , structural engineering , materials science , composite material , pure mathematics
In a previous publication (Allison, 1989), a non‐destructive method for indirectly determining rock strength by measuring Dynamic Young's Modulus was described. Data were presented to assess the Grindosonic apparatus in relation to standard laboratory techniques. A further Short Communication (Allison, 1990) evaluated the non‐destructive test as a field technique, in part achieved by comparing the Grindosonic results with data collected using the Schmidt hammer. The Schmidt hammer is a widely used field technique in geomorphology for determining rock strength (see for example Day and Goudie, 1977; Day, 1981). Allison (1989, 1990) also suggested that the elastic properties of materials are becoming increasingly important in geomorphological studies. The opportunity to provide additional information and comments here is appreciated.