Drilling and Blasting

Teacher

Arun Kumar Sahoo

Category

Core Courses

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Course Name : Drilling and Blasting

Code(Credit) :CCMN0112(2-0-1)

Course Objectives

  • Understand the different approaches to design a perfect blast design in surface and underground mines depending upon different geotechnical properties of rock and explosives
  • Select a suitable method of working for exploitation of ore body economically and safely.
  • Grasp process of mine production
  • Gain knowledge about the various technical and economical and safety issues to be considered in mine designing.

Learning Outcomes

  • Prepare and design a blasting pattern depending upon various geotechnical conditions of rock.
  • Select suitable blasting methods depending upon the economical and safe conditions.
  • Explain various technical parameters related with mine designing.
  • Follow the safe and economic working procedure for mining.

Course Syllabus


MODULE I
Explosives and Initiating Systems:
Types of explosives, their composition and properties, classification; Selection of explosives; Manufacture, transport, storage and handling of explosives; Testing of explosives
PROJECT:
1.selection of explosive
2.storage and handling of explosives
Types of initiating systems:
Electrical Detonators, Detonating Fuse, Detonating Relays, NONEL, Electronic Detonators, Blasting accessories, exploders.
PROJECT:
Electronic detonator
MODULE II
Drilling & Blasting in Surface Mines:
Drilling:
Blasthole drills types, classification, applicability and limitations; Mechanics of drilling, performance parameters, drilling cost, compressed air requirement for hole cleaning; Selection of drilling systems, drilling errors, organization of drilling.
PROJECT:
1. Selection of drilling systems
2.Estimation of performance of a drill machine
Blasting:
Mechanics of rock fragmentation; Livingstone theory of crater formation; Factors affecting blasting, Blast design estimation of burden and spacing, estimation of charge requirement; Initiation patterns; Secondary blasting pop and plaster shooting; Problems associated with blasting, Ground vibration and air over pressure,Control blasting and Blast instrumentation
PROJECT:
1.control blasting
2. Blast instrumentation
MODULE III
Drilling & Blasting in Underground Mines:
Coal mines:
Drilling systems and their applicability, blasting off solid, different blasting cuts, ring hole blasting, calculation of specific charge, specific drilling and detonator factor, initiation patterns.
PROJECT:
Drilling systems and their applicability for u/g coal mine.
Metal mines:
Drilling systems and their applicability, blast design for horizontal drivages, different blasting cuts, long hole blasting, vertical crater retreat blasting.
PROJECT:
Drilling systems and their applicability for u/g metal mine.
MODULE IV
Exploration Drilling:
Boring for exploration; Various types of exploratory drills and their applicability Auger, Cable tool, Odex, Core Drills; Core recovery: single and double tube core barrels, wire line core barrel; Storage of cores; Interpretation of borehole data.
REFERENCES:
Explosive and blasting practices in mines By Dr. Sameer Das
Mettalliferrous mining methods By Y.P. Chacharkar
Elements of mining technology By D.J.Deshmukh

Session Plan

Session 1

LECTURE:
Types of explosives, their composition and properties, classification
WEB LINKS:

Blasting explosive pdf

explosive.pdf

Session 2

LECTURE:
Selection of explosives; Manufacture, transport, storage and handling of explosives; Testing of explosive
WEB LINKS:

Transport and handling of explosive.ppt

Session 3

PROJECT:
PRESENTATION BY GROUP
1.Selection of explosive
2. Storage and handling of explosive

Session 4

LECTURE:
Electrical Detonators, Detonating Fuse, Detonating Relays, NONEL
WEB LINKS:

explosive initiative devices.ppt
electric detonation system.ppt

Session 5

LECTURE:
Electronic Detonators, Blasting accessories
WEB LINKS:

blasting accessories.ppt

blasting.ppt

Session 6

LECTURE:
exploders
WEB LINKS:

exploder.ppt

Session 7

PROJECT:
PRESENTATION BY INDIVIDUAL
Electronic detonator

WEB LINKS:
ELECTRONIC DETONATORS. VIDEO

ELECTRONIC DETONATORS. PDF

Session 8

LECTURE:
Blasthole drills types, classification, applicability and limitations
WEB LINKS:

Drilling types 1.ppt

Drilling types 2.ppt

Session 9

LECTURE:
Mechanics of drilling, performance parameters, drilling cost
WEB LINKS:

Mechanics of drilling.ppt

drilling parameters.ppt

Session 10

LECTURE:
compressed air requirement for hole cleaning; Selection of drilling systems, drilling errors, organization of drilling
WEB LINKS:

Session 11

PROJECT:
PRESENTATION BY GROUP
1.Selection of drilling systems
2.Estimation of performance of a drill machine
WEB LINKS:

Session 12

LECTURE:
Mechanics of rock fragmentation; Livingstone theory of crater formation
WEB LINKS:

https://www.slideshare.net/AlexanderDemidovich/blasting-and-rock-fragmentation

Session 13

LECTURE:
Factors affecting blasting, Blast design estimation of burden and spacin
WEB LINKS:

https://www.slideshare.net/hamed1469/blasting-rock

Session 14

LECTURE:
estimation of charge requirement; Initiation patterns
WEB LINKS:

https://www.slideshare.net/UmerKhayam2/rock-blasting-fundamentals

Session 15

LECTURE:
Secondary blasting pop and plaster shooting; Problems associated with blasting
WEB LINKS:

https://www.slideshare.net/MomohKMusa1/mine-305-71790117
https://www.osmre.gov/resources/blasting/docs/WYBlasterCertModules/8AdverseEffectsBlasting.pdf

Session 16

LECTURE:
Ground vibration and air over pressure
WEB LINKS:

https://higherlogicdownload.s3.amazonaws.com/SMENET/d1f74698-76c6-4c73-8ced-5de57b15be03/UploadedImages/UCA-YM/TAC%20-%202013%20VIBRATION%20AND%20AIR-OVERPRESSURE%2

Session 17

LECTURE:
Control blasting and Blast instrumentation
WEB LINKS:

https://www.slideshare.net/sharmapd1/techniques-of-controlled-blasting
https://www.slideshare.net/chemistrya40/computer-applications-in-drilling-and-blasting

Session 18

PROJECT:
PRESENTATION BY GROUP
1.Control blasting
2.Blast instrumentation

WEB LINKS:

Session 19

LECTURE:
Coal mines: Drilling systems and their applicability, blasting off solid
WEB LINKS:

Session 20

LECTURE:
different blasting cuts, ring hole blasting
WEB LINKS:

Session 21

LECTURE:
calculation of specific charge, specific drilling and detonator factor, initiation patterns.
WEB LINKS:

Session 22

PROJECT:
PRESENTATION BY INDIVIDUAL
Drilling systems and their applicability for u/g coal mine.
WEB LINKS:

Session 23

LECTURE:
Metal mines: Drilling systems and their applicability, blast design for horizontal drivages
WEB LINKS:

Session 24

LECTURE:
different blasting cuts, long hole blasting
WEB LINKS:

Session 25

LECTURE:
vertical crater retreat blasting
WEB LINKS:

https://minewiki.engineering.queensu.ca/mediawiki/index.php/Vertical_crater_retreat

Session 26

PROJECT:
Drilling systems and their applicability for u/g metal mine
WEB LINKS:

Session 27

LECTURE:
Boring for exploration; Various types of exploratory drills and their applicability
WEB LINKS:

exploratory drilling.ppt

Session 28

LECTURE:
Auger, Cable tool, Odex
WEB LINKS:

https://www.slideshare.net/chsabasaif/drilling-in-hydrogeology

Session 29

LECTURE:
Core Drills; Core recovery: single and double tube core barrels
WEB LINKS:

https://www.iitism.ac.in/~dheeraj/exp/cbcr.pdf

Session 30

LECTURE:
wire line core barrel; Storage of cores; Interpretation of borehole data
WEB LINKS:

http://home.iitk.ac.in/~sarv/New%20Folder/Presentation%20-3

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