厚煤层大断面回采巷道支护优化
孙佳享
（山西汾西正令煤业有限责任公司，山西 孝义 032300）
摘要：针对12503 回风巷原支护方案支护强度大、支护耗时长以及支护成本高等问题，对回风巷围岩支护参数
进行优化，具体通过适当降低锚杆及锚索支护密度、降低围岩支护强度达到降低支护成本、提高支护效率的目
的。支护优化后，回风巷围岩变形量较小且在允许范围内，巷道综合支护成本较优化前降低约47.3%，同时支护
耗时明显缩短。支护优化设计在降低巷道支护投入、提高巷道掘进效率等方面效果显著。
关键词：厚煤层；围岩支护优化；模拟分析
中图分类号：TD353      文献标志码：A      文章编号：2095-0802-(2024)01-0136-05
Support Optimization of Large-section Mining Roadway in Thick Coal Seam
SUN Jiaxiang
(Fenxi Zhengling Coal Industry Co., Ltd. of Shanxi, Xiaoyi 032300, Shanxi, China)
Abstract: In view of the large support strength, long support time and high support cost of the original support scheme of
12503 air return roadway, the surrounding rock support parameters of the air return roadway were optimized. Specifically,
the support cost was reduced and the support efficiency was improved by appropriately reducing the density of bolt and
cable support and reducing the surrounding rock support strength. After the support optimization, the surrounding rock
deformation of the air return roadway was small and within the allowable range, the comprehensive support cost of the
roadway was reduced by about 47.3% compared with that before the optimization, and the supporting time was
significantly reduced. Support optimization design has significant effects on reducing roadway support input and improving
roadway driving efficiency.
Key words: thick coal seam; optimization of surrounding rock support; simulation analysis