综放工作面回风巷锚杆支护设计

Design of bolting support in return airway in caving face

根据煤矿前期煤岩基础数据测定和巷道支护工作总结,确定了综放工作面回风巷支护方式和锚杆支护主要技术参数。对巷道锚杆支护设计方案采用flac软件进行数值模拟,根据实验结果,确定了最优锚杆支护设计方案。并在回风巷实施试验巷道,调整和完善了锚杆支护设计方案,最终完成合理可行的锚杆支护设计方案。

Based on previous coal rock data and conclusion of roadway support, the paper defines the main technical parameters of supporting way of return airway in caving face and bolting support. For the roadway bolting scheme, the flac software is adopted for numerical simulation, the optimum bolting support is defined based on the analysis of testing results. Through observing the mine pressure in the roadway, the bolting support scheme has been modified and improved, the reasonable and feasible bolting support scheme is achieved.