顶板深孔预裂爆破提高综放孤岛工作面初采率研究

doi:10.11799/ce201311017

COAL ENGINEERING ›› 2013, Vol. 45 ›› Issue (11): 47-49.doi: 10.11799/ce201311017

Previous Articles Next Articles

Damage Mechanisms and Supporting Measures in Soft Seams Coal Laneway with Compound Roof

Received:2013-04-25 Revised:2013-05-29 Online:2013-11-10 Published:2013-11-11

Abstract

Abstract:

through the mechanical properties of the roof , the deep presplit means of blasting cut the top numerical simulation analysis and engineering applications. It is showed that the technology of hard roof cracking blasting processing not only to avoid to strong impact load of rock burst hazards in the 3407 consolidated island face, and the weighting step shortened to 9.6m , top coal recovery increase to 14.38% ,in fully mechanized caving the island face in the safe and efficient mining , it ensure that the island face is mined safely and efficiently.

Key words: fully mechanized caving face, primary mining, deep hole pre-cracking blasting technology, UDEC

0
/ / Recommend

Add to citation manager EndNote|Reference Manager|ProCite|BibTeX|RefWorks

URL: http://www.coale.com.cn/EN/10.11799/ce201311017

http://www.coale.com.cn/EN/Y2013/V45/I11/47

[1]	. Rapid installation technology and application of fully mechanized caving faces with complicated condition [J]. COAL ENGINEERING, 2016, 48(5): 68-70.
[2]	. Application on Fire Preventing Technology of Islet Fully Mechanized Caving Workface under Complex Condition [J]. COAL ENGINEERING, 2015, 47(9): 62-64.
[3]	. Research of coal-rock character recognition in fully mechanized caving faces based on acoustic pressure data time domain analysis [J]. COAL ENGINEERING, 2015, 47(6): 119-122.
[4]	. Optimization of coal pillar size in shallow seam [J]. COAL ENGINEERING, 2014, 46(4): 17-19.
[5]	. Study on reasonable width of sections coal pillar in mining the ultra-cosemuti seam [J]. COAL ENGINEERING, 2014, 46(11): 8-10.
[6]	. Research of fuzzy fault tree in bracket - rock system accident at the fully mechanized caving face with large cutting height [J]. COAL ENGINEERING, 2014, 46(10): 158-161.
[7]	. Study on Abnormal Strata Behaviors and Control Measures of Fully Mechanized Caving Face During the Initial Mining Period [J]. COAL ENGINEERING, 2013, 45(s1): 60-62.
[8]	. Caving prevention technology of spontaneous combustion [J]. COAL ENGINEERING, 2013, 45(s1): 75-77.
[9]	. Researching on the stope roof breaking principle affected by faults [J]. COAL ENGINEERING, 2013, 45(9): 71-74.
[10]	. Study on the field applying status of production technology and complete equipment for tens of millions of tons of fully mechanized caving face [J]. COAL ENGINEERING, 2013, 45(8): 11-13.
[11]	. Study of the length of fully mechanized caving face in very thick coal seam with large inclined angle above confined water [J]. COAL ENGINEERING, 2013, 45(7): 4-6.
[12]	. [J]. COAL ENGINEERING, 2013, 45(12): 47-48.
[13]	. Numerical Simulation Research on Upward Mining in Deeply Buried Thickness Coal Seams of Zhao Gezhuang Mine [J]. COAL ENGINEERING, 2012, 1(3): 77-79.
[14]	. Practices on Support Installation Technology for 1307 Fully Mechanized Caving Face of Yangcheng Mine [J]. COAL ENGINEERING, 2011, 1(9): 55-58.
[15]	. Technology Research on Relocation of Equipment in the Easy Self-ignition and Thick-Coal-Seam Fully Mechanized Caving Face [J]. COAL ENGINEERING, 2011, 1(10): 52-53.

Damage Mechanisms and Supporting Measures in Soft Seams Coal Laneway with Compound Roof

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments