Academic Center

All Issues
Latest Issue
Most Download Articles
Most Read Articles
Full Text Download
2011 Issue 11

Technology of Controlled Blasting and Surrounding Rock Control for Mine Semi Coal and Rock Roadway


Key Words:

semi coal and rock roadway;controlled blasting;surrounding rock control;air pillar;surrounding rock support;
  • Abstract
  • Paper Chart
  • Related Articles
  • Citation Format
With the analysis on the surrounding rock broken causes of the mine semi coal and rock roadway in Dong baowei Mine, according to the blasting vibratio n and irrational support mode of the roadway heading operation, based on the surrounding rock features of the semi coal and rock roadway, a controlled blasting headin g of the semi coal and rock roadway and the "bolt/steel band/shotcreting" controlled technology of the surrounding rock was provided and the parameters of the blasting boreholes in the coal and rock were distinguished. The explosive loading was improved.Meanwhile the blasting heading could be met, the explosive loading could reduc e the blasting vibration to the surrounding rock and the disturbance radius in the surrounding rock could be controlled within 0.3 m.With the controlled blasting, the bolt support density would be reduced.With the shotcreting on the two side walls of the roadway, the support cost and the labor strength could be reduced.Thus the heading efficiency of the semi coal and rock roadway was improved by 40%.
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: