Annual Report,2009 - Directorate General of Mines Safety

DGMS Annual Report, 2009
(b)
(c)
(d)
(e)
The management will be strictly implement the recommendation. The
equipment shall not be put into service until the recommendation are fully
complied.
The committee will re-inspect the equipment are recommend the period for
further use of equipment.
An additional periodical maintenance program shall provided by the
committee.
The additional periodical maintenance along with one recommended by OGM
initially at one time of new installation shall be strictly followed by the mine
official and a record of maintenance/inspection are recorded in a bound paged
book and signed by the colliery Engineer & Manager.
2. The managements shall ensure all spares are made available for
maintenance/repairs.
3. The stability of equipment shall be assessed by an independent agency in case
of Excavator/Shovel and Dragline once in six months during the extended use.
I am of the opinion that the above recommendation may help in reducing
incidents/accidents due to extended use of surveyed off equipments. The
recommendation may be strictly complied in the interest of safety.
No. DGMS (Tech)/Circular No./ 02 Dhanbad, Dated – 09/02/2009
To,
Owner/Agent/Manager of All coal Mines and Mettalliferious mines.
Sub:- Structural Safety audit for Heat gears used in Mines.
Head gear is a important structure located over the shaft that houses one or two
sheaves, carrying winding ropes, flexible guides and other equipments. The head
frames are constantly subject to static loads, dynamic loads and environmental effect.
Foundations of reinforced concrete is buried in ground and is constantly subjected to
reversible loads and environmental effects, which reduces the strength of concrete an
alters the properties. Failure of foundation is most dangerous for headgear frames.
Hence a time to time the structural audit for safety, stability, serviceability and
durability must be done to assess the damage.
Regulation 73(1) of Coal Mines Regulations, 1957 & Regulation 80(1) of
Metalliferous Mines Regulation 1961 requires that “every part of a winding
installation, including headgear, shall be sound construction and adequate strength,
and shall be maintained in safe working order. In case of any doubt as to the
foregoing, it shall be referred to the Chief Inspector of decision.
Regulation 182 of the Coal Mines Regulation, 1957 & Reg. 172 of the Metalliferous
Mines Regulations 1961 require that “all parts and working gear, whether fixed or
moveable, including the anchoring and apparatus used as or forming part of the
equipment of a mine, and all foundations in or to which any such appliances are
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