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Correlation of Laboratory Cutting Data With Tunnel Boring Machine Performance.

Authors
Rad-PF
Source
NTIS: PB 233 415 :19 pages
Link
NIOSHTIC No.
10001735
Abstract
The Bureau of Mines conducted rock-cutting experiments under constant normal force and constant penetration in an effort to correlate laboratory data with those obtained in the field. Both independent and interacting groove spacing regions were studied, and optimum and critical cutter spacings were determined. For the laboratory work, the effects of specific energy, muck weight, groove depth, cutting coefficient, and size distribution of the muck for both independent and interacting grooves were studied. For field operations, forward thrust, torque, advance rate, and muck size distribution were the parameters studied. Satisfactory correlation is obtained between laboratory cutting results and field performance data.
Publication Date
19740101
Document Type
IH; Report of Investigations
Fiscal Year
1974
NTIS Accession No.
PB-233415
NTIS Price
A03
Identifying No.
RI 7883
NIOSH Division
ALRC;
Source Name
NTIS: PB 233 415
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