The article presents technology development of rockbolting in gateroads of top coal caving longwall faces in Yanzhou. The development work has been concentrated on understanding behaviour of gateroads of top coal caving longwalls; introducing a monitoring based feedback design approach; upgrading rockbolting consumables and equipment; optimisation of rockbolting practice; development of effective supplemental reinforcement technique; and last but not the least, establishment of necessary legal framework such as consumable Standards and practice guidelines. The paper then highlights aspects of future development work with rockbolting in gateroads of top coal caving longwall faces, such as integrated cutting/bolting cycle for higher drivage rate.
展开▼
