Results 191 to 200 of about 680,096 (228)

Rock abrasivity test with a modified schmidt hammer

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1982
Ideally, an abrasivity test should be physically similar to the real cutting process of a drag bit or roller cutter and should generate a force of a few tonnes. The note describes how an m-type Schmidt hammer was modified and used as a portable in-situ tester.
W. Janach, A. Merminod
openaire   +1 more source

Evaluation of schmidt rebound hammer testing: A critical approach

Bulletin of the International Association of Engineering Geology, 1993
In the present paper, a critical approach to the evaluation of Schmidt hammer testing is attempted. Through a statistical analysis of field measurements on sandstone blocks from the archaeological site of Delphi (Greece), it was shown that there is an inconsistency in the correction method proposed by the manufacturer, in relation to the direction of ...
E. Kolaiti, Z. Papadopoulos
openaire   +1 more source

Evaluation of Schmidt Hammer Rebound Hardness Test Holders

Geotechnical Testing Journal, 1984
Abstract An evaluation is made of three different holders for Schmidt hammer tests on rock core in the laboratory, including steel angle, V-notch, and semicircular groove holders. The differences are small, but it is shown that the V-notch holder gives consistently higher rebound hardness values.
KL Gunsallus, FH Kulhawy, TD O'Rourke
openaire   +1 more source

Evaluation of Laboratory Schmidt Hammer Tests on Carbonate Rocks

Proceedings, 2013
Being quick, inexpensive, non-destructive and handy, the Schmidt Hammer (SH) test has been widely used to determine hardness and to predict the unconfined compressive strength (UCS) of rocks. However, a review of empirical equations recommended for determination of the USC of rocks based on the SH rebound number (N) suggests that one unique formula ...
H. Arman, W. Hashem, O. Abdelghany, A. Aldahan   +3 more
openaire   +1 more source

Soft computing based closed form equations correlating L and N-type Schmidt hammer rebound numbers of rocks

Transportation Geotechnics, 2021
Mohammadreza Koopialipoor, Navid Kardani
exaly  

Using the Schmidt hammer on folds: An example from the Cantabrian Zone (NW Iberian Peninsula)

Journal of Structural Geology, 2022
Hodei Uzkeda, Josep Poblet
exaly  

Schmidt Hammer Lassen

2019
Trine Berthold, Fredrik Nilsson
openaire   +1 more source

A method for normalization of Schmidt hammer rebound values

International Journal of Rock Mechanics and Mining Sciences, 2004
Aydin, A, Basu, A
openaire   +3 more sources

Schmidt Hammer Lassen: dalle idee ai fatti

2009
Concorsi ...
openaire   +1 more source

The effect of Schmidt hammer type on uniaxial compressive strength prediction of rock

International Journal of Rock Mechanics and Minings Sciences, 2007
R M Göktan
exaly