Analysis of Impact Hammer Rebound to Estimate Rock Drillability
Abstract
In this paper, the piston rebound common to both the Schmidt Impact Hammer and downhole hammer drills has been analyzed and calculated by means of stress wave theory and the energy conservation law. A quantitative relationship between the amount of rebound of the piston and the impact resistance index, or hardness of the rock, has been established. Those analytical results will not only be of benefit in acquiring a deep understanding of the usable range and condition of the Schmidt Impact Hammer, but also provide a definite answer to the feasibility of using the hammer rebound in drills with down-hole hammer tool to carry out a real time measurement of the nature of the formation under the bit.
Recommended Citation
X. Li et al., "Analysis of Impact Hammer Rebound to Estimate Rock Drillability," Rock Mechanics and Rock Engineering, vol. 33, no. 1, pp. 1 - 13, Springer Verlag, Feb 2000.
The definitive version is available at https://doi.org/10.1007/s006030050001
Department(s)
Geosciences and Geological and Petroleum Engineering
Second Department
Mining Engineering
International Standard Serial Number (ISSN)
0723-2632
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2000 Springer Verlag, All rights reserved.
Publication Date
01 Feb 2000
