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LW 10 - 17 SMP Application AreaSource: Glennies Creek Coal ManagementLegend0 200mSMP Application AreaProposed Void as per ApplicationMine WorkingsProposed Mine WorkingsFigure 1Subsidence Management Plan - Approved PlanGlennies Creek Coal Management Pty Ltd - Glennies CreekSubsidence Management PlanJobs/200 5/0038321 SMP-Fg1 Subsidence Management Plan - Approved Plan.cdr 14 11 2006 SP Environmental Resources Management Australia Pty Ltd
2 MINE PLANNING2.1 MINING METHODSThe proposed mining method represents a continuation of the current systememployed at Glennies Creek Colliery, namely continuous miner developmentsupporting longwall extraction.Roadway development in gateroads and main headings will be carried outusing continuous miners. These continuous miners are either wide head(single pass) or narrow head (double pass) machines, with integrated roof andrib bolting rigs. Shuttle cars are employed to transport the coal from thecontinuous miners to the conveyor system.Secondary extraction will be by retreating longwall methods. The longwallequipment is capable of operating in the height range of 1.8m to 3.1m and ofnegotiating the expected geological conditions, including any sandstonechannels. With an average seam thickness of 2.3m, the full seam will beextracted.Longwall extraction is the preferred method of mining as it provides thegreatest production and economic efficiencies when compared to otheroptions. It is the only method that can provide acceptable economic returnsfor extraction of the area based on coal quality, required production levels,current economics and forecasted economic parameters.2.2 MINE LAYOUTThe longwall panels are oriented in a north-east/south-west direction, withmain headings being developed in a north-westerly direction. The longwallpanel widths are 246m (rib to rib) to maximise resource recovery and reducethe amount of development drivage required over the life of the mine relativeto longwall tonnes extracted.The mine layout perimeter is constrained by areas of the Middle Liddell seamwhich are steeply dipping.2.3 CONSIDERATION OF SUBSIDENCE IMPACTSThe location and orientation of Longwalls 10 to 17 represents the mostpractical, efficient and cost effective progression of the longwall miningsystem at Glennies Creek Colliery. It is expected that any potential subsidenceimpacts on the identified surface and sub-surface features within theApplication Area can be adequately managed through measures set out in thisSMP.ENVIRONMENTAL RESOURCES MANAGEMENT AUSTRALIA 0038321/FINAL/3 JANUARY 20072
Page 3 and 4: CONTENTS1 INTRODUCTION1.1 SCOPE 11.
Page 5: 1 INTRODUCTIONThis Application for
Page 9 and 10: 5 COMMUNITY CONSULTATIONGCCM consid
Page 11: 5.5 RELEVANCE AND ADEQUACY OF CONSU
Page 15 and 16: changes to drainage paths and chann
Page 17 and 18: Subsidence Management Plan was deve
Page 19 and 20: In this instance, the principal imp
Page 21 and 22: Mt Owen Rail Spur Line and Associat
Page 23 and 24: The monitoring processes described
Page 25 and 26: impacts be detected through the spe
Page 27 and 28: and gates and farm dams. These mana
Page 29 and 30: application for mining approval wou
Page 31 and 32: allow more detailed and appropriate
Page 33 and 34: 9 PUBLIC SAFETY MANAGEMENT PLANA Pu
Page 35 and 36: 10.1.4 Mine Surveyor• Ensure that
Page 37 and 38: 11 AUDIT AND REVIEW11.1 AUDITAs a m
Page 39 and 40: Application for Subsidence Manageme

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