• українська
    • русский
    • English
    • Deutsch
    • español
    • italiano
  • English 
    • українська
    • русский
    • English
    • Deutsch
    • español
    • italiano
  • Login
View Item 
  •   DSpace Home
  • Персональні колекції співробітників та підрозділів
  • Кафедра підземної розробки родовищ
  • View Item
  •   DSpace Home
  • Персональні колекції співробітників та підрозділів
  • Кафедра підземної розробки родовищ
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Substantiation of parameters of mine working drivage with blasting technique and cleaning charges in advance cutting holes

Thumbnail
View/Open
252-593-1-PB eng.pdf (2.305Mb)
Date
2020
Author
Lyashenko, V. I.
Khomenko, O. E.
Kononenko, M. N.
Metadata
Show full item record
Abstract
Drilling and blasting operations (D&B) are the most difficult and laborious operations in the process of mineral extraction, requiring permanent development and upgrading of methods and equipment. The aim of the study is to substantiate the parameters of drilling and blasting drivage of horizontal and inclined (up to 12o) mine workings on the basis of high-performance self-propelled equipment and new designs of box cuts with cleaning explosive charges (0.2 kg of 6ZhV ammonite), placed in advance holes of 65 to 105 mm in diameter. The paper presents the results of the analysis of practical experience and scientific achievements in the field of drilling-andblasting rupture of solid media and continuum mechanics. The need for new designs of box cuts, reliability of which in the formation of high-quality (clean) cut cavity reaches 0.95-1.00, was substantiated. New design options of box cuts have been developed, the peculiarity of which consists in provision of sufficient compensation (peripheral) volume with the use of blast hole cut charges for blasting rupture of trapezoidal partitions, with the compensation volume factor of 2.50 to 1.34. Promising areas of research were shown using the example of complicated structure ore deposits and large faults in the Kirovograd ore district and crystalline rocks of the Ukrainian shield at the following mines of Ukraine: PJSC KZhRK, CJSC Sukhaya Balka (Kryvyi Rih), Vostok-Ruda LLC, SE VostGOK (Zheltye Vody), CJSC ZZhRK, etc. Promising areas of research were proposed using the example of complicated structure ore deposits typically formed at the junction of large faults; besides, the use of environmentally friendly emulsion explosives and self-propelled emulsion explosive chargers was recommended.
URI
http://ir.nmu.org.ua/handle/123456789/157155
Collections
  • Кафедра підземної розробки родовищ [210]

DSpace software copyright © 2002-2015  DuraSpace
Contact Us | Send Feedback
Theme by 
@mire NV
 

 

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

LoginRegister

DSpace software copyright © 2002-2015  DuraSpace
Contact Us | Send Feedback
Theme by 
@mire NV