Chinese And North American High-Extraction Underground Coal Mining Strata Behavior And Water Protection Experience And Guidelines

Bai, Mao
Organization: International Conference on Ground Control in Mining
Pages: 9
Publication Date: Jan 1, 1995
Mining in situations where there exists a potential hazard from inundation has always existed in coal mining, and often reserves were left unmined in favor of reserves with no such hazard. However, increased pressure on expanding the minable reserves and on producing low-sulfur coal, has made mining under water hazards necessary in many parts of the world. Recent joint efforts by the authors to develop case-history data bases of mining under water hazards has allowed the bringing together of Chinese and United States experience and guidelines for such mining. In China, mining under water hazards has been successfully accomplished for a number of years, allowing the development of a good data base from which to draw guidelines. In the United States, much more limited experience, and the longer delay in adopting longwall mining compared to the rest of the world, has forced reliance on a more limited data base and European experience. In the United States (and Canada), the data base is continuing to increase as more operations start-up. Developing a generally-applicable set of guidelines for international use, based upon extensive Chinese and other experience, appears feasible. The Chinese and United States experiences are detailed by case histories.
Full Article Download:
(2785 kb)


Additional chapters/articles from the SME-ICGCM book Proceedings of 14th International Conference on Ground Control in fining

Truss Systems For Longwall Tailgate Support - Update
Cable Support Systems For Longwall Gate Road Stability
Innovative Tailgate Support For Heavy Ground: 11 Left Longwa
Parameters Affecting Resin-Anchored Cable Bolt Performance:
Roof Support Performance In High Stress Conditions
Regional Horizontal Stress And Its Effect On Longwall Mining
Deformation Development Around Mine Roadways And Simulation
Monitoring Mobile Roof Supports
Analysis Of Retreat Mining Pillar Stability
Planning And Design For Barrier Pillar Recovery Three Case H
Influence Of Partings In A Coal Seam On Long Term Pillar Sta
A Cooperative Study Of Gate Entry Designs Welbeck Colliery (
Comparative Case Study Of Yielding And Critical Coal Pillar
Comparison Of Empirical, Analytical, And Numerical Methods O
Nonlinear Approach For Determining Design Criteria For Yield
In-Situ Coal Strength Determination - Case Studies
The Design And Application Of Propsetter? In Underground Coa
Renewed Interest In Prop Supports As A Replacement For Wood
Improved Intersection Design And Monitoring In The Sydney Co
Drivage System In Retreat Longwall Gateroad
Case Study Of Stability Investigations Related To Shallow Un
Analysis Of Rockbolt Performance At The Waste Isolation Pilo
Continuous Improvement In Cuttable Coal Rib Support In Austr
Floor Failure Induced By Lateral Stress Ahead Of Longwall Su
Towards A Method Of Determining Floor Quality In An Undergro
Chinese And North American High-Extraction Underground Coal
Integration Of CAD-Based Mine Planning And Subsidence Engine
Development Of A Subsidence Database And Determination Of Su
Statistical Regional Calibration Of Subsidence Prediction Mo
Subsidence Monitoring Results, Thick Seam Longwall Mining In
Application Of Mechanical And Groundwater-Flow Models To Pre
The Application Of Underground In-Seam Seismic Methods (UISS
Vertical Stress Redistribution Around A Retreating Longwall
Entry Stability Monitoring & Analysis For Longwall & Continu
A Case Study Of A Deformation Mechanism Around A Two-Entry G
Multiseam Mining On South African Collieries
Design And Planning Of Lower Seam Longwall Gateroads
Optimizing Pillar Design In A Multi-Seam Environment