Analysis of Tunnel Support Structure With Consideration of Support/rock Interaction.
Authors
Dixon JD
Source
Soc Min Eng Trans AIME 1971 Dec; 250:304-309
Link
NIOSHTIC No.
10010655
Abstract
Procedures are given for calculating stresses in underground tunnel supports which accounts both for the structural behavior of the support and that of the adjacent rock mass. Stresses in the support are caused by service loads and rock reactions. Service loads are due to rock pressures, hydrostatic and hydraulic pressures, self- weight of the support, or other utilitarian-type loads. Rock reactions, equal and opposite those in the support, are due to the deformational interaction that results as service loads deform the tunnel support against the adjacent rock mass. The procedures developed for solving this problem are an application of matrix structural analysis. The principles involved in this method allow for the consideration of the deformable characteristics of most tunnel support systems and an iterative solution procedure is applied to determine the areas of support-rock interaction. Numerical results of example problems are given.
Publication Date
19711201
Document Type
OP;
Fiscal Year
1972
Identifying No.
OP 71-73
Source Name
Soc. Min. Eng., Trans. AIME, V. 250, December 1971, PP. 304-309
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