Academic Center

All Issues
Latest Issue
Most Download Articles
Most Read Articles
Full Text Download
2016 Issue 11

Study on formation mechanism of arch shell large structure of overburden in coal mining face with multi layer hard roof

Author:

Huo BingjieYu Bin Zhang Hongwei Lu Yangbo

Author Unit:

School of Mining,Liaoning Technical University Datong Coal Mine Group Corporation Limited

Key Words:

Datong Miming Area; muli layer hard roof: arch shell large structure of overburden; mechanics model;mine strata pressure control;
  • Abstract
  • Paper Chart
  • Related Articles
  • Citation Format
in order to achieve the formation mechanism of the arch shell large structure of overburden in the coal mining face with the multi layer hard roof.taking the ultra thick seam mining with Carboniferous multi ayer hard roof inTongxin Mine of Datong Mlining Area as an engineeringbackground,based on the key stratum theory,the paper had an analysis on the breakdown features of the muti layer hard roof in the ful-mechanized ultra thick seam mining face in No. 3-5 seam of Tongxin Mine and the overburden strueture features of the large space mining fac. An elastc plate theory was applied to establish an arch shell balanced large structure mechanics model and the mathematical model of the hard overburden above the large space mining face. the study showed that the arch shell balanced large structure theored to well reveal the large and small periodic roof weighting,.large mining infuence scope,easy occurred strong mine rock pressure and other special mine rock pressure phenomenon mechanism occurred in the mining process of No.8105,No.8106 and other coal mining face in Tongin Mine. The study results could provide the theoretical basis to the mine rock pressure control of the coal mining face in the ulra thick seam with Carboniferous hard roof in Datong Mining Area.
No Content Yet
No.06
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: mtkxjs@vip.163.com