MINE DEVELOPMENT:

                Mine development involves all the operations in preparing the extraction of mineral from ore

The extraction of mineral from ore takes place by two stages

·         Development

·         Stoping

 Development involves the driving of series of narrow headings in the ore parallel to each other and connected by a cross heading so as to form pillars for subsequent extraction

Pillars should be square shaped

Some times rectangular or rhombus shaped

The roads surrounding the pillars are invariably of square cross section

The ore  is developed along dip or rise or strike direction by driving levels,or cross cuts  winzes and raises

 The operations involved in development are

1.            Entry in to deposit

2.            Driving vertical, slope, horizontal roads in to deposit there by deposit developed up to the boundary by division of ore in to blocks , pillars in  panels or without panels

3.            By driving roads results the formation of blocks or pillars of ore

 4.           Arrangement for power, substations from entrance to working spot

5.            Arrangements for transport for materials, drawing out puts

6.            Arrangement of ventilation to workings, installation of fans at surface or under ground ,  construction of ventilation devices for flow of intake and return air

7.            Arragements of sumps for storing water, installation of pumps and pipe ranges for removal of water form under ground to surface

8.Arragement of drinking water supply to workers

9.Strata supporting with necessary supports

10.Arrangement of

                Shaft stations

                Rest stations

                First aid stations

                Reserve stations

                Charging stations

                Relighting stations