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Structural Design Data for Concrete Drift Linings in Block Caving Stopes.

Authors
Dixon-JD
Source
NTIS: PB 227 548 :73 pages
Link
NIOSHTIC No.
10009060
Abstract
The Bureau of Mines has developed structural design data for unreinforced concrete tunnel linings for drifts used in block caving stopes. Design data are given that consist of moment, thrust, and deformation coefficients from which bending, axial, boundary stresses, and structural deformations can be determined at any point on the lining. Data is given for circular, horseshoe, and retangular linings, each with two different thicknesses and subjected to eight different loading conditions for drifts excavated in hard and soft rocks. The structural analyses performed are based on procedures that account for both the structural behavior of the lining and that of the drift and take into consideration deformational interaction that occurs between them.
Publication Date
19730101
Document Type
IH; Report of Investigation;
Fiscal Year
1973
NTIS Accession No.
PB-227548
NTIS Price
A05
Identifying No.
RI 7792
Source Name
NTIS: PB 227 548
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