How would you, as manager, ensure compliance of the provisions of the Mines Act and regulations by all concerned? Chalk out an organizational set up fixing responsibilities at different levels and the feed back information you would like to have. Assume your own conditions.
A steeply pitching 90m. wide Iron Ore body with its foot wall, in contact with phyllites was being worked by mechanized open cast method. Suddenly a large fall of sides on the footwall side occurred over a strike length of 500m, burying much equipment and damaging many benches. Luckily, it happened on a Sunday and no life was involved.
As an enquiry officer, write a report giving, inter-alias, the circumstances attending this dangerous incident, precautions that might have been omitted and remedial measures. Assume your own conditions.
State and comment upon the statutory requirements in respect of:-
Varying the dimensions of benches beyond the specified limits.
Blasting in vicinity of dwellings.
Extraction of barrier common with adjacent mine.
The maximum no. of shots permitted to be fired by a blaster in a shift.
(a) what are notified occupational diseases of the open cast mines and who are most vulnerable to contract them? What precautions do you suggest to minimize their incidence?
(b) Sketch and describe a dust extractor for blast holes.
State the requirements of Indian electricity rules for over head lines in respect of (a) earthing (b) safety and protective devices (c) protection against lightening and (d) factor of safety.
Draft a code of precautions for the use of HEMM in mechanized open cast mines.