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Laboratory and Numerical Modeling of Coal Mine Roof Reinforcement Systems.

Authors
Dar-SM; Smelser-TW
Source
Third Conf on Ground Control Problems in the Illinois Coal Basin Dep Min Eng S Illinois Univ :13 pages
Link
NIOSHTIC No.
10008244
Abstract
The U.S. Bureau of Mines Spokane Research Center (SRC) constructed a full-scale model of a 15-ft-wide coal mine entry to use in combination with finite-element analyses for investigating roof support systems and various types of roof bolts. The objective was to enhance understanding of the fundamentals of the mechanics of the interaction between rock and supports and the relative integrity of bolted mine roof as a function of roof bolt type, length, spacing, bolt tension, and the basic characteristics of the roof strata. The laboratory test results, when correlated with computer simulations that use finite-element analysis and underground verification tests, will provide a basis for designing safer, more cost-effective roof control plans and help to establish guidelines for employing fully grouted resin and mechanically anchored bolting systems. Results of this research indicate exact correlation between the two analytical codes used, namely bmines and ansys. Excellent correlation was obtained between computer modeling and physical modeling.
Publication Date
19900101
Document Type
OP;
Fiscal Year
1990
NTIS Accession No.
NTIS Price
Identifying No.
OP 176-90
NIOSH Division
SRC;
Source Name
Third Conf. on Ground Control Problems in the Illinois Coal Basin. Dep. Min. Eng., S. Illinois Univ.
State
IL;
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