Annual Report,2009 - Directorate General of Mines Safety

No. of Accidents
No. of Accidents
DGMS Annual Report,2009
8. Distribution of fatal roof fall accidents by time elapsed after blasting
time elapsed
Number of accidents
after blasting
(hours)
2005 % 2006 % 2007 % 2008 % 2009 % total %
0.00- 0.50 1 6 9 69 0 0 6 43 5 21 21 26
0.51- 1.00 0 0 0 0 0 0 1 7 4 17 5 6
1.01- 1.50 1 6 0 0 4 31 0 0 0 0 5 6
1.51- 2.00 0 0 0 0 1 8 2 14 1 4 4 5
2.01 & above 9 50 1 8 2 15 4 29 8 33 24 29
not applicable 7 38 3 23 6 46 1 7 6 25 23 28
Total 18 100 13 100 13 100 14 100 24 100 82 100
25
20
15
10
5
0
2005 2006 2007 2008 2009
Year
Time elapsed
after blasting
not
applicable
2.01 &
above
1.51- 2.00
1.01- 1.50
0.51- 1.00
0.00- 0.50
Analysis by Time elapsed after
blasting
not applicable, 23,
28%
2.01 & above, 24,
29%
0.00- 0.50, 21, 26%
0.51- 1.00, 5, 6%
1.01- 1.50, 5, 6%
1.51- 2.00, 4, 5%
9. Distribution of fatal roof fall accidents by thickness of seam
Seam
thickness
(metres)
Number of accidents
2005 % 2006 % 2007 % 2008 % 2009 % total %
0.00- 3.00 6 33 4 31 7 54 6 43 10 42 33 40
3.01- 6.00 8 45 4 31 4 30 4 29 7 29 27 33
6.01- 9.00 0 0 2 15 1 8 2 14 4 17 9 11
9.01 & above 2 11 2 15 1 8 0 0 3 12 8 10
not available 2 11 1 8 0 0 2 14 0 0 5 6
Total 18 100 13 100 13 100 14 100 24 100 82 100
25
20
15
10
Thickness of
Seam
not available
9.01 & above
6.01- 9.00
Analysis by Thickness of Seam
9.01 & above, 8, not available, 5,
10% 6%
6.01- 9.00, 9,
11%
0.00- 3.00, 33,
40%
5
3.01- 6.00
0
2005 2006 2007 2008 2009
Year
0.00- 3.00
3.01- 6.00, 27,
33%
A-25