Analysis of Impact Hammer Rebound to Estimate Rock Drillability |
| |
| Authors: | X Li G Rupert D A Summers P Santi D Liu |
| |
| Institution: | (1) Central South University of Technology, Changsha, Hunan, P.R. China, CN;(2) Rock Mechanics and Explosives Research Center, University of Missouri-Rolla, Rolla, U.S.A., US |
| |
| Abstract: | Summary ?In this paper, the piston rebound common to both the Schmidt Impact Hammer and down-hole 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. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
