Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/2293
Appears in Collections:Management, Work and Organisation Conference Papers and Proceedings
Peer Review Status: Refereed
Authors: Oraee, Kazem
Hosseini, Navid
Gholinejad, Mehran
Contact Email: sko1@stir.ac.uk
Title: Logical design of yield pillar base in longwall mining
Citation: Oraee K, Hosseini N & Gholinejad M (2008) Logical design of yield pillar base in longwall mining, Seventeenth international symposium on mine planning and equipment selection (MPES 2008), Beijing, China.
Issue Date: Oct-2008
Conference Name: Seventeenth international symposium on mine planning and equipment selection (MPES 2008)
Conference Location: Beijing, China
Abstract: Longwall is one of the most widely used methods in mining horizontal and gently dipping coal seams. It is a high production method that requires high initial capital investment. Such characteristics enhance the importance of initial design and hence design process. The entries on both sides of the face are integral parts of the method whose accurate design adds to increased profitability and safety of the mining operation. In this paper, two strain-softening models based on analytical fundamentals have been adopted. These models have been applied to a series of yield chain pillars in a coal seam with the depth of 700 meters. Results obtained from this analysis show that such models can be used in deep coal mining and they produce optimum design dimensions and hence they could be adopted as a valid base for logical design of chain pillars. Finally, sensitivity analysis of the results shows that the final design is highly sensitive to the pillar behavior after the coal peak strength. This further demonstrates the validity of the method as a useful tool in designing pillars in longwall deep coal mining.
Type: Conference Paper
Status: Author Version
Rights: The chair of the International Organizing Committee for the International Symposium on Mine Planning and Equipment Selection (MPES) has granted permission for use of this conference paper in this Repository. The paper was first presented at the Seventeenth international symposium on mine planning and equipment selection (MPES 2008), October 20-22, 2008, Beijing, China.
URI: http://hdl.handle.net/1893/2293
URL: http://www.mpes-cami-swemp.com/
Affiliation: Management Work and Organisation
Islamic Azad University
Islamic Azad University

Files in This Item:
File Description SizeFormat 
Logical.pdf750.36 kBAdobe PDFView/Open


This item is protected by original copyright



Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

If you believe that any material held in STORRE infringes copyright, please contact library@stir.ac.uk providing details and we will remove the Work from public display in STORRE and investigate your claim.