Location
Arlington, Virginia
Date
15 Aug 2008, 11:00am - 12:30pm
Abstract
Tabas mechanized underground coal mine, locating in mid eastern of Iran, has been designed to produce 1.5 million tone coal annually. To start driving the first (East 1) panel's main gate and tail gate, a 7+6 pattern of 2.4 m roof bolts was considered to be applied in both gates together with 4 and 3 side bolts at left and right ribs, respectively. In this paper, 2D numerical modelling using FLAC program is implemented to assess the efficiency of the roof bolting pattern in the east 1 main gate of the mine. The output of the modelling, in the form of displacements and strains in 7.2 m extensometers , movements in 5 m long dual telltales and axial loads in roof bolts, will be compared to the results of real monitoring instruments (7.2 m multipoint sonic extensometers, 5 m telltales and strain gauge bolts) installed in the gate.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
6th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2008 Missouri University of Science and Technology, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Taghipoor, S., "Application of Numerical Modelling to Study the Efficiency of Roof Bolting Pattern in East 1 Main Gate of Tabas Coal Mine" (2008). International Conference on Case Histories in Geotechnical Engineering. 2.
https://scholarsmine.mst.edu/icchge/6icchge/session06/2
Application of Numerical Modelling to Study the Efficiency of Roof Bolting Pattern in East 1 Main Gate of Tabas Coal Mine
Arlington, Virginia
Tabas mechanized underground coal mine, locating in mid eastern of Iran, has been designed to produce 1.5 million tone coal annually. To start driving the first (East 1) panel's main gate and tail gate, a 7+6 pattern of 2.4 m roof bolts was considered to be applied in both gates together with 4 and 3 side bolts at left and right ribs, respectively. In this paper, 2D numerical modelling using FLAC program is implemented to assess the efficiency of the roof bolting pattern in the east 1 main gate of the mine. The output of the modelling, in the form of displacements and strains in 7.2 m extensometers , movements in 5 m long dual telltales and axial loads in roof bolts, will be compared to the results of real monitoring instruments (7.2 m multipoint sonic extensometers, 5 m telltales and strain gauge bolts) installed in the gate.
