continued from part 1 - Controller General of Patents, Designs, and ...

(12) PATENT APPLICATION PUBLICATION (21) Application No.6315/DELNP/2008 A
(19) INDIA
(22) Date of filing of Application :18/07/2008 (43) Publication Date : 24/10/2008
(54) Title of the invention : "WASTE DISPOSAL DURING PIT MINING"
(51) International classification :E21C 41/26 (71)Name of Applicant :
(31) Priority Document No :2005907342
1)BHP BILLITON INNOVATION PTY LTD
(32) Priority Date :30/12/2005
Address of Applicant :BHP BILLITON CENTRE, 180
(33) Name of priority country :Australia
LONSDALE STREET, MELBOURNE, VICTORIA 3000,
(86) International Application No :PCT/AU2006/001948 AUSTRALIA. Australia
Filing Date
:20/12/2006 (72)Name of Inventor :
(87) International Publication No :WO 2007/076571 1)ZUCKERBERG, MARK
(61) Patent of Addition to Application
Number
Filing Date
:NA
:NA
2)STONE, PETER MITCHELL
(62) Divisional to Application Number :NA
Filing Date
:NA
(57) Abstract :
A method, apparatus and computer program for pit mining with waste dumping is disclosed, in which material is extracted from an
open pit and some of that material is sent to waste. The method optimises a joint extraction and waste refill schedule. The method
defines a road network (14) having a plurality of nodes 16 with at least some of the nodes (16a) defining entry points to a plurality of
waste dumps. The waste dumps are either in pit waste dumps or external waste dumps. Waste material is moved along the road
network from a location in the pit to an entry node relating to one of the waste dumps and deposited at the waste dump. Material can
be moved from external waste dumps to in pit waste dumps. The in pit waste dumps are determined from a block model providing a
joint extraction and refill schedule, and refill aggregate spaces are determined which comprise aggregates of blocks which have
already been mined so that material is removed from those blocks to define a refill aggregate space which is then available to act as a
waste dump for return of waste material to the pit.
No. of Pages : 31 No. of Claims : 14
The Patent Office Journal 24/10/2008 25815