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VARIOUS WAYS OF TIMING NORMAL TIMING - BLOCK. NORMAL TIMING - STAGGERED. DAISY CHAIN - STAGGERED. REVERSE TIMING - BLOCK. REVERSE TIMING - STAGGERED.

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Presentation on theme: "VARIOUS WAYS OF TIMING NORMAL TIMING - BLOCK. NORMAL TIMING - STAGGERED. DAISY CHAIN - STAGGERED. REVERSE TIMING - BLOCK. REVERSE TIMING - STAGGERED."— Presentation transcript:

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2 VARIOUS WAYS OF TIMING NORMAL TIMING - BLOCK. NORMAL TIMING - STAGGERED. DAISY CHAIN - STAGGERED. REVERSE TIMING - BLOCK. REVERSE TIMING - STAGGERED.

3 NORMAL TIMING BLOCK PATTERN

4 NORMAL TIMING - BLOCK PATTERN FREE FACEFREE FACE DIRECTION OF BLAST

5 NORMAL TIMING - BLOCK PATTERN DIRECTION OF BLAST FREE FACEFREE FACE

6 NORMAL TIMING - BLOCK PATTERN DIRECTION OF BLAST FREE FACEFREE FACE

7 ADVANTAGES CONSISTENT BURNING FRONT SEQUENTIAL FIRING. GREATER THROW OF THE ROCK. IMPROVED ADVANCE PER BLAST. FINER FRAGMENTATION.

8 DISADVANTAGES DAMAGE TO SUPPORT CAN BE MORE SEVERE WITH INACCURATE DRILLING.

9 NORMAL TIMING STAGGERED PATTERN

10 FREE FACEFREE FACE DIRECTION OF BLAST NORMAL TIMING - STAGGERED PATTERN

11 FREE FACEFREE FACE DIRECTION OF BLAST NORMAL TIMING - STAGGERED PATTERN

12 FREE FACEFREE FACE DIRECTION OF BLAST NORMAL TIMING - STAGGERED PATTERN

13 DISADVANTAGES BLASTING TOWARDS HANGWALL. CREATING MORE DAMAGE TO THE HANGWALL. INCREASING PROBABILITY OF FOGS.

14 DAISY CHAIN TIMING STAGGERED PATTERN

15 FREE FACEFREE FACE DIRECTION OF BLAST TIMING DONE IN DAISYCHAIN

16 FREE FACEFREE FACE DIRECTION OF BLAST TIMING DONE IN DAISYCHAIN

17 FREE FACEFREE FACE DIRECTION OF BLAST TIMING DONE IN DAISYCHAIN

18 FREE FACEFREE FACE DIRECTION OF BLAST TIMING DONE IN DAISYCHAIN BROKEN SHOCKTUBE

19 DISADVANTAGES RISK OF MISFIRES/CUT-OFFS.

20 REVERSE TIMING BLOCK PATTERN

21 FREEFACEFREEFACE DIRECTION OF BLAST REVERSE TIMING - BLOCK PATTERN HEAVE OF ROCK DIRECTION

22 REVERSE TIMING - BLOCK PATTERN FREE FACEFREE FACE DIRECTION OF BLAST

23 REVERSE TIMING - BLOCK PATTERN FREE FACEFREE FACE DIRECTION OF BLAST

24 REVERSE TIMING - BLOCK PATTERN FREEFACEFREEFACE DIRECTION OF BLAST

25 REVERSE TIMING - BLOCK PATTERN BROKEN SHOCKTUBE FREEFACEFREEFACE DIRECTION OF BLAST

26 REVERSE TIMING - BLOCK PATTERN CONNECTION DIRECTION OF BLAST

27 ADVANTAGES THROW OF ROCK TOWARDS FOOTWALL. REDUCING DAMAGE TO HANGWALL.

28 Backfill GullyGully Stick Side INCORRECT DRILLING METHOD WITH HANDIDETS

29 DISADVANTAGES THROW OF ROCK TOWARDS SUPPORT. SEVERELY DAMAGES SUPPORT. CLEANING OPERATIONS DIFFICULT. CONTAMINATES BACK AREAS.

30 CORRECT DRILLING METHOD WITH HANDIDETS Stick Side Backfill

31 ADVANTAGES THROW OF ROCK TOWARDS GULLY. MINIMUM DAMAGE TO SUPPORT. LESS CONTAMINATION TO BACK AREAS. IMPROVED CLEANING OPERATIONS.

32 REVERSE TIMING STAGGERED PATTERN

33 REVERSE TIMING - STAGGERED PATTERN FREE FACEFREE FACE DIRECTION OF BLAST

34 REVERSE TIMING - STAGGERED PATTERN FREE FACEFREE FACE DIRECTION OF BLAST

35 REVERSE TIMING - STAGGERED PATTERN FREE FACEFREE FACE DIRECTION OF BLAST

36 ADVANTAGES THROW OF ROCK TOWARDS FOOTWALL. REDUCING DAMAGE TO HANGWALL.

37 DISADVANTAGES DRILLING DISCIPLINE MUST BE MAINTAINED TO ENSURE PROPER BLASTING ASSOCIATED WITH THIS TIMING.

38 How to time the heading with HANDIDETS® COLOURS INDICATE HOW TO CONNECT INDIVIDUAL HANDIDETS HANDIDET TRUNKLINE FROM GULLY

39 How to time the heading with HANDIDETS® COLOURS INDICATE HOW TO CONNECT INDIVIDUAL HANDIDETS HANDIDET TRUNKLINE FROM GULLY

40 THIS IS THE MASTERSTARTER CONNECTED TO THE FIRST HANDIDET CONNECTION OF FOOTWALL LIFTING IN GULLY WITH HANDIDETS® THIS IS A 6m HANDIDET TRUNK LINE (EXTENDER) TO THE HEADING OR TOE OF PANEL

41 REVERSE TIMING - BLOCK PATTERN WITH PRE-CONDITIONING in Slow Motion FREE FACEFREE FACE DIRECTION OF BLAST Assume to be three meters Blue Line - Extenders with HandiMasters Yellow Line - HandiMasters Orange Blocks - HandiMaster Blocks 200m/s delay

42 REVERSE TIMING - BLOCK PATTERN WITH PRE-CONDITIONING in Fast Mode FREE FACEFREE FACE DIRECTION OF BLAST Assume to be three meters Blue Line - Extenders with HandiMasters Yellow Line - HandiMasters Orange Blocks - HandiMaster Blocks 200m/s delay

43 FREE FACEFREE FACE Blue Line - Extenders Yellow Line - HandiMasters Orange Blocks - HandiMaster Blocks 200m/s delay Red Holes - Production Holes Blue Holes - Pre Conditioning Holes REVERSE TIMING - BLOCK PATTERN WITH PRE-CONDITIONING in 3D

44 FREE FACEFREE FACE Blue Line - Extenders Yellow Line - HandiMasters Orange Blocks - HandiMaster Blocks 200m/s delay Red Holes - Production Holes Blue Holes - Pre Conditioning Holes REVERSE TIMING - BLOCK PATTERN WITH PRE-CONDITIONING in 3D Fast Mode

45 FREE FACEFREE FACE Blue Line - Extenders Yellow Line - HandiMasters Orange Blocks - HandiMaster Blocks 200m/s delay Red Holes - Production Holes Blue Holes - Pre Conditioning Holes REVERSE TIMING - BLOCK PATTERN WITH PRE-CONDITIONING in 3D Slow Mode

46 DOS AND DON'TS DO NOT CONNECT HANDIMASTER BLOCKS CLOSER THAN 10CM TO EACH OTHER. CLIP THE HANDIMASTER BLOCK 90° TO THE TUBING TO ENSURE PROPER CONTACT. DAISY CHAIN TIMING NOT RECOMMENDED.

47 DOS AND DON'TS DO NOT LET THE BURNING PART OF A FUSE TOUCH THE TUBING AS IT WILL MELT IT AND WILL CAUSE MISFIRES/CUT-OFFS. DO NOT INSERT MORE THAN THE MAXIMUM RECOMMENDED NUMBER OF TUBES IN A HANDIMASTER BLOCK.

48 DOS AND DON'TS ALWAYS USE SUFFICIENT LENGTHS OF SHOCK TUBE FOR THE SPECIFIC APPLICATION. ALWAYS INITIATE SHOCK TUBE BY USING A DETONATOR (NONEL FUSE MASTERSTARTER®) OR DETONATING CORD.

49 DOS AND DON'TS DO NOT REVERSE PRIME WITH SHOCK TUBES. DO NOT USE THE DETONATOR TO MAKE A HOLE INTO A CARTRIDGE EXPLOSIVE FOR PRIMING PURPOSES. DO NOT TRY AN PULL OUT A MISFIRED UNIT OUT OF CHARGED HOLE.


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