Pre-split blasting design to reduce costs and improve safety in underground mining
To control the overbreaking of an underground mining development gallery, the controlled blasting technique was proposed and as a result it was possible to reduce costs and improve the physical stability of the periphery of the opening, achieving greater safety for personnel and equipment. With the...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-11-01
|
| Series: | Energy Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352484722013798 |
| _version_ | 1797900708433887232 |
|---|---|
| author | Alexander Pomasoncco-Najarro Claudio Trujillo-Valerio Luis Arauzo-Gallardo Carlos Raymundo Grimaldo Quispe Francisco Dominguez |
| author_facet | Alexander Pomasoncco-Najarro Claudio Trujillo-Valerio Luis Arauzo-Gallardo Carlos Raymundo Grimaldo Quispe Francisco Dominguez |
| author_sort | Alexander Pomasoncco-Najarro |
| collection | DOAJ |
| description | To control the overbreaking of an underground mining development gallery, the controlled blasting technique was proposed and as a result it was possible to reduce costs and improve the physical stability of the periphery of the opening, achieving greater safety for personnel and equipment. With the support of the geomechanical studies, the rock quality of the advancing front was determined, serving for the design of the drilling mesh and the choice and distribution of the explosives in the respective drills. This study demonstrates that it is possible to make progress in efficient mining preparation and development work, achieving minimal damage to the roof and walls of the mining work. Performing the simulation with the software determines a difference between conventional blasting with the design of the pre-cut technique, optimizing the parameters of the perforation mesh, selection of the explosive charge, the order of detonation. As a result, the study found a 60%–70% reduction in excess excavation, showing a better finish of the tunnel contour, yielding a 16% reduction in support costs. |
| first_indexed | 2024-04-10T08:50:20Z |
| format | Article |
| id | doaj.art-8e32a7d0d5a943bc8b352fc8f138a2fb |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-04-10T08:50:20Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-8e32a7d0d5a943bc8b352fc8f138a2fb2023-02-22T04:30:56ZengElsevierEnergy Reports2352-48472022-11-01812081225Pre-split blasting design to reduce costs and improve safety in underground miningAlexander Pomasoncco-Najarro0Claudio Trujillo-Valerio1Luis Arauzo-Gallardo2Carlos Raymundo3Grimaldo Quispe4Francisco Dominguez5Ingenieria de Gestion Minera, Universidad Peruana de Ciencias Aplicadas, Prolongación Primavera 2390, Lima 15023, PeruIngenieria de Gestion Minera, Universidad Peruana de Ciencias Aplicadas, Prolongación Primavera 2390, Lima 15023, PeruIngenieria de Gestion Minera, Universidad Peruana de Ciencias Aplicadas, Prolongación Primavera 2390, Lima 15023, PeruDireccion de Investigacion, Universidad Peruana de Ciencias Aplicadas, Prolongación Primavera 2390, Lima 15023, Peru; Corresponding author.Universidad Nacional Autónoma Altoandina de Tarma, Tarma, PeruEscuela Superior de Ingeniera Informtica, Universidad Rey Juan Carlos, Mostoles, Madrid, SpainTo control the overbreaking of an underground mining development gallery, the controlled blasting technique was proposed and as a result it was possible to reduce costs and improve the physical stability of the periphery of the opening, achieving greater safety for personnel and equipment. With the support of the geomechanical studies, the rock quality of the advancing front was determined, serving for the design of the drilling mesh and the choice and distribution of the explosives in the respective drills. This study demonstrates that it is possible to make progress in efficient mining preparation and development work, achieving minimal damage to the roof and walls of the mining work. Performing the simulation with the software determines a difference between conventional blasting with the design of the pre-cut technique, optimizing the parameters of the perforation mesh, selection of the explosive charge, the order of detonation. As a result, the study found a 60%–70% reduction in excess excavation, showing a better finish of the tunnel contour, yielding a 16% reduction in support costs.http://www.sciencedirect.com/science/article/pii/S2352484722013798BlastCostsDesignPre-split blastingTunnel supportContour quality |
| spellingShingle | Alexander Pomasoncco-Najarro Claudio Trujillo-Valerio Luis Arauzo-Gallardo Carlos Raymundo Grimaldo Quispe Francisco Dominguez Pre-split blasting design to reduce costs and improve safety in underground mining Energy Reports Blast Costs Design Pre-split blasting Tunnel support Contour quality |
| title | Pre-split blasting design to reduce costs and improve safety in underground mining |
| title_full | Pre-split blasting design to reduce costs and improve safety in underground mining |
| title_fullStr | Pre-split blasting design to reduce costs and improve safety in underground mining |
| title_full_unstemmed | Pre-split blasting design to reduce costs and improve safety in underground mining |
| title_short | Pre-split blasting design to reduce costs and improve safety in underground mining |
| title_sort | pre split blasting design to reduce costs and improve safety in underground mining |
| topic | Blast Costs Design Pre-split blasting Tunnel support Contour quality |
| url | http://www.sciencedirect.com/science/article/pii/S2352484722013798 |
| work_keys_str_mv | AT alexanderpomasoncconajarro presplitblastingdesigntoreducecostsandimprovesafetyinundergroundmining AT claudiotrujillovalerio presplitblastingdesigntoreducecostsandimprovesafetyinundergroundmining AT luisarauzogallardo presplitblastingdesigntoreducecostsandimprovesafetyinundergroundmining AT carlosraymundo presplitblastingdesigntoreducecostsandimprovesafetyinundergroundmining AT grimaldoquispe presplitblastingdesigntoreducecostsandimprovesafetyinundergroundmining AT franciscodominguez presplitblastingdesigntoreducecostsandimprovesafetyinundergroundmining |