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Drillability Studies. Percussive Drilling in the Field.

Authors
Schmidt-RL
Source
NTIS: PB 213 966 :31 pages
Link
NIOSHTIC No.
10001734
Abstract
One of a series published by the Bureau of Mines covering research investigations in rock drillability, this report of field drilling results extends earlier laboratory findings and provides a relatively simple procedure for predicting percussive drilling rates with reasonable accuracy. Two percussive drills mounted on a truck were used to drill a total of 25 rock types, and the results were used to develop a prediction equation. The equation was tested on a set of unrelated laboratory percussive drilling data, and the comparison between predicted and actual rates is shown in tabular form.
Publication Date
19720101
Document Type
IH; Report of Investigations
Fiscal Year
1972
NTIS Accession No.
PB-213966
NTIS Price
A04
Identifying No.
RI 7684
NIOSH Division
WO;
Source Name
NTIS: PB 213 966
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