Flexible Support Design For Gateroads Of Retreating Longwall Panels

Unal, Erdal
Organization: International Conference on Ground Control in Mining
Pages: 10
Publication Date: Jan 1, 1993
In gate roads where supports are subjected to dynamic loading four times due to retreating longwall panels, it is a real challenge to replace the rigid arches with flexible reinforcement systems and yet to provide safety and stability of these openings within better economical limits. The results presented in this paper are based on a three years of research project aimed at developing safe and economical support systems for gate roads in Çayìrhan coal mine. Çayìrhan -Mine Project includes laboratory and field studies, design analysis, pilot scale design applications and performance monitoring. Based on outputs of the design approach developed, four types of bolts, namely, Split Set, Yielding Super Swellex, Sis-Resin, and Fosroc-Resin bolts were installed in a gate road together with widely spaced yielding steel-arches. In order to compare the performance of these flexible support systems and to provide feed back for the design approach, a monitoring program was initiated.
Full Article Download:
(2290 kb)


Additional chapters/articles from the SME-ICGCM book Proceedings of 12th International Conference on Ground Control in Mining

Bolting Practice In Longwall Gateroads At The Miike Colliery
Cable Supports For Improved Longwall Gateroad Stability
Comparisons Of Active Versus Passive Bolts In A Bedded Mine
Flexibolt Flexible Roof Bolts: A New Concept For Strata Cont
The Design And Application Of Hercules Cribs For Underground
Cyprus Shoshone Tailgate Roof Control: Case Study
Engineering Methods For The Design And Employment Of Wood Cr
The Use Of Foamed Cement Cribs At American Electric Power Fu
A Comparison Of Support Reactions To Retreat Longwall Front
Entry Design For Optimum Stability In A Multi-Seam Environme
Gate Entry Design For Longwalls Using The Coal Mine Roof Rat
A Test Of Predictive Numerical Models To Simulate Entry Desi
The Coal Mine Roof Rating (CMRR) A Practical Rock Mass Class
Comparative Analysis Of Longwall Gateroad Designs In Four De
Further Improvements In The Roof Beam Tilt Method Of Gateroa
Application Of A Static And Geophysical Monitoring System Fo
Flexible Support Design For Gateroads Of Retreating Longwall
Longwall Support Monitoring
Case Studies Using Mine-Wide Monitoring Systems For Geotechn
An Application Of Tree Classification Method In Analysis Of
Image Analysis Development And Application To Fracture Patte
Mathematical Modeling Of Strong Roof Beds In Longwall Mining
Load Deformation Behavior Of Simulated Longwall Gob Material
Monitoring Of The Interaction Effects Over A Longwall Panel
Design, Monitoring And Evaluation Of A Pre-Driven Longwall R
Ground Control And Safety Considerations During Longwall Rec
Utilization Of Polymer Grid Structures In Shield Recovery Op
The Impact Of Variability In Coal Strength On Mine Planning
Underground Application Of Optimization
Modern Geotechnical Exploration And Mine Design
A New Method For Longwall Pillar Design
A Rock Mass Strength Concept For Coal Seams
Techniques To Increase Yield Pillar Residual Strength
Application Of Seismic Tomography For Assessing Yield Pillar
Structure, Strength And Relaxation Of Interbuden For Input I
Rock Compaction Caused By Dewatering In Poorly- Consolidated
Correlation Between The Effect Of Confining Pressure On Comp
Characterization Of Structural Integrity And Stress State Vi
Rock Mechanics Property Data Bank For Coal Measure Strata
Failure Modes Of Mine Tunnels In Stratified Rock Structures
Determination Of Plate Size Effect On Ultimate Bearing Capac
Development And Evaluation Of A Floor-Bearing Capacity Test
Investigation Of Blast Damage And Underground Stability
Development Of A Slope Stability Program For Improved Quarry
Material Instability Hazards In Mine Processing Operations
Mine Design Considerations For Surface Subsidence Control
Surface Fracture Development From Mine Subsidence In Eastern
An Integrated Approach To Subsidence Modelling And Predictio
Effect Of High-Extraction Coal Mining On Surface And Ground
Economic Evaluation Of Subsidence Damage Mitigation Techniqu