Overview
Contact
History and Methods
Production Overview
Retreat Mining
Advance Mining
Top Caving
Australian Longwalls
NSW
Gunnedah Region
Hunter Region
Newcastle Region
Southern Region
Western Region
NT
QLD
Central
Northern
SA
TAS
VIC
WA
Equipment
Overview
Shearer
Photos
Australian Specifications
Videos
Drum
Pre-Cutter
Chisels
Ranging Arm
Haulage System
Cowls
Bretby Cable Handler
Controls
Plough
Powered Supports
Photos
Chock Supports
Shield Supports
Hydraulic Legs
Setting Pressure
Yield Load
Advancement
Control System
Face Conveyor
Twin In-board chains
Twin out-board chains
Single in-board chains
Pantechnicon
Sleds
Beam Stage Loader
Communications
Environmental
Ground Control
Overview
Abutment Pressures
Optimal Mining Direction
Support Capacity
Gateroad Support
Chain Pillar Design
Diamond Shaped
Single line of Square Pillars
Double line of Square Pillars
Single line of Rectangular Pillars
Double line of Rectangular Pillars
Effective Width
Subsidence
Sub-Critical
Critical
Super-Critical
Instrumentation
Difficult Conditions
Ventilation
Overview
Systems
R System
R System for gassy goafs
Z System
Homotropal System
Antitropal
Dust Control
Auxiliary Ventilation
Gas Drainage
Spontaneous Combustion
Changeout
Overview
Critical Path
Bolt up cycle
Photos
Recovery
Huesker System
Installation
Punch Longwall
Overview
Research and Publication
Publications
References
Completed Thesis
Links
UOW
Bord and Pillar
Longwall
Outbursts
University of Wollongong Home
Coal Conference
Aachen Technical University, Germany
Bucyrus International
Coal Services NSW
Department of Mineral Resources
History of Illawarra Coal
International Longwall News
Joy Mining Machinery
NIOSH
Double Rectangular Chain Pillars
for w/h < 2 tan f
for w/h >= 2 tan f
