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In Situ Tests of Bearing Capacity of Roof and Floor in Selected Coal Mines - a Progress Report - Longwall Mining.

Authors
Barry-AJ; Nair-OB
Source
NTIS: PB 193 326 :20 pages
Link
NIOSHTIC No.
10000943
Abstract
A practical method has been developed and field tested which provides an estimate of the bearing capacity of mine roof and floor. The relationship between penetration of the strata and imposed loads is determined by in situ tests. Information of this type is needed to determine the maximum allowable pressure that may be applied by self-advancing support on roof and floor of a longwall face without causing a punching type of failure.
Publication Date
19700101
Document Type
IH; Report of Investigations
Fiscal Year
1970
NTIS Accession No.
PB-193326
NTIS Price
A03
Identifying No.
RI 7406
NIOSH Division
DRC;
Source Name
NTIS: PB 193 326
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