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Bord-and-pillar mining is used in first workings of a deposit, and when irregularly shaped deposits, or sensitive environmental conditions, call for a lighter touch. This method is used at
mechanized bord-and-pillar mining layout for a given piece of ground (Vlakpoort and Moddergat) using a given selection of machines. This piece of ground contains the PGM bearing UG2 Reef with an average thickness of 124 cm and dipping at 18 with Two bord
Room and pillar mining is a highly mechanized mining method and makes use of trackless equipment. This results in a very mobile and flexible equipment fleet. Loading of the ore and waste is usually carried out with a load haul dump machine ( LHD ) which can then
Shepherd pointed out Implats lost about 20% of its production from bord and pillar mechanised stopes following the reduction in panel width. He said Aquarius Platinum appeared to be the company which was the most exposed to such changes, because it derived at least 85% of its South African production from mechanised bord and pillar mining.
27/2/2016 Bord and Pillar method of mining is one of the oldest methods. 3. INTRODUCTION In India, about 98% of underground output of coal is obtained by Bord and Pillar method and barely about 2% by longwall methods. The other countries where Bord and Pillar
The underground mining methods we use include room and pillar, narrow vein stoping and large-scale mechanised mining. Room and pillar mining is a style of mining where tunnels are driven in a chess board pattern with massive square pillars between them which are
Underground mining: room-and-pillar mining of thick seams –“Benching” Different approaches allow either the top or bottom part of the seam to be mined out first.
The bord width is the extent of the reef that is mined out by mechanised operations between the supporting pillars of reef left in place to hold up the roof of the workings. The Aquarius announcement said its Marikana and Kroondal operations would be affected and added that the instruction applied to all mechanised bord and pillar mines in the North West.
Room and pillar mining method Epiroc by Epiroc Underground Mining and Tunneling 1 year ago 2 minutes, 58 seconds 13,005 views Room and pillar is a common,mining method,mining
INTRODUCTION Bord and Pillar method of mining is one of the oldest methods.Pillars are left as support and output is nearly 20%.after development pillars are being extracted which follows different procedure according to the geographical condition.