Academic Center

All Issues
Latest Issue
Most Download Articles
Most Read Articles
Full Text Download
2014 Issue 10

Study on Optimal Roadways Layout of Contiguous Seams by Simultaneous Mining


ZHANG Chun-lei ZHANG Yong

Author Unit:

School of Resources and Safety Engineering, China University of Mining and Technology (Bejing)

Key Words:

contiguous seams; mining simultaneously; rational gateway separation distance; optimal layout;
  • Abstract
  • Paper Chart
  • Related Articles
  • Citation Format
In order to determine No.3 and No. 4 coal seam roadway layout of one mine during simultaneous mining, combining with the geological condition of coal seam, firstly, by the theoretical analysis, the roadways of the mining face mined simultaneously were arranged outward staggered. Then the numerical simulation FLAC 3 Dwas adopted to optimize the distance between roadways of contiguous seams by mining simultaneously, and the rational separation distance of roadways was 20 m. Finally, through the coal mine practice, the roof- to- floor convergence was 150 mm, and the convergence of two side walls was 120 mm in the lower roadway of No. 34 09 working face. The influence scope was limited in the range of 60 m in front of working face. The layout of roadways in contiguous seams by simultaneous mining was rational and the deformation of the surrounding rock of roadways was controlled effectively.
No Content Yet
June 15th,2022

Contact Us

  • All Rights of Website Desige Reserved©《COAL SCIENCE AND TECHNOLOGY》Editorial Department
  • 京ICP备05086979号-19

  • Address:8th Floor, Coal Building, District 13, Heping Street, Chaoyang District, Beijing:Ad & Finance Department(Room 1204),Editorial Department(Room 811)
  • Telephone:010-87986431(Ad Consult)
  • Mailbox: