文档介绍：
袁庄矿Ⅳ1 专用回风道高强控制对策研究
徐华礼1,2,刘聪1*
(1. 中国矿业大学矿业工程学院,江苏徐州 221116;
5
10
2. 淮北矿业集团,安徽淮北 234111)
摘要:针对淮北矿业集团袁庄矿的 IV1 回风巷道支护难题,通过对巷道失稳变形的分析,根
据巷道围岩实际情况,结合数值模拟计算分析,提出高强稳定型耦合支护方案。利用锚注加
固技术提高工程岩体的完整性,将支架与围岩耦合为一体,实现支架与围岩共同承载,充分
发挥支架的承载能力。通过在帮部和肩部采用锚索进行结构补偿,提高 U29 型钢支架的稳
定性,同时采用高强控底措施控制底板的强烈臌起,保证Ⅳ1 专用回风道有效使用断面。通
过现场监测,得知巷道变形得到了有效控制,说明高强支护技术最终实现了对受高地应力影响
巷道的合理支护。
关键词:耦合;高强控底;锚注
中图分类号:TD35
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Research for the Support of YuanZhuang Mine’s IV1
Ventilation Roadway
XU Huali1,2, LIU Cong1
(1. China University of Mining and Technology, Jiangsu Xuzhou 221116;
20
25
2. HUAIBEI MINING CO., LTD, Anhui Huaibei 234111)
Abstract: According to difficult problems of the support of YuanZhuang Mine’s IV1 ventilation
roadway in HuaiBei Coal Mining Corporations, through the analysis of the instability mechanism
and the actual situations of roadway surrounding rock, combined with numerical simulation
analysis, We put forward the high strength stable coupling support scheme. Through using the
bolt-grouting reinforcement technology to improve the integrity of the engineering rock mass and
make supports and surrounding rock coupled, we make supports and surrounding rock bearing
together, giving fully play to the bearing capacity of supports. Improve the stability of the U29
steel supports through pensation of anchor cable at roadway side and shoulder. At the
same time, ensure the effective use section of
1 special back to duct through using high
30
strength of the control measures to control bottom strongly bursting on. Through monitoring the
field, we found that the roadway deformation was effectively controlled. So we concluded that the
high strength stable coupling support technology finally achieved to support roadway reasonably
under the influence of high ground stress.
Key words: coupling; high strength controlling bottom; bolt-grouting
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0 前言
袁庄煤矿为高瓦斯矿井,煤尘具有爆炸危险性。Ⅳ1 专用回风道为Ⅳ1 采区专用回风巷道,
担负着整个Ⅳ1 采区的回风任务,巷道支护状况的好坏直接决定整个采区的通风安全。
长期以来,Ⅳ1 专用回风道受上部Ⅳ3212、