丰永乐, 方建厂, 翟新献,等.千秋煤矿回采巷道卸压防冲钻孔布置合理参数研究[J].河南理工大学学报（自然科学版）,2026,45(2):175-185.

FENG Y L, FANG J C, ZHAI X X,et al.Study on rational parameters of pressure relief and rock burst prevention borehole layout in the extraction roadways of Qianqiu Coal Mine[J].Journal of Henan Polytechnic University(Natural Science) ,2026,45(2):175-185.

千秋煤矿回采巷道卸压防冲钻孔布置合理参数研究

丰永乐1, 方建厂1, 翟新献2,3, 张振2, 张志勇1

1.河南大有能源股份有限公司，河南 三门峡  472300；2.河南理工大学 能源科学与工程学院，河南 焦作  454003；3.河南省煤矿岩层控制国际联合实验室，河南 焦作  454003

摘要: 目的 随着煤层开采深度、开采强度增加，冲击地压煤层巷道掘进时大能量矿震时有发生，因此需要研究冲击地压巷道两帮卸压钻孔布置参数和卸压防冲效果。  方法 以千秋煤矿16082底分层综采（放）面煤柱区回采巷道掘进为工程背景，利用正交试验法建立不同孔深、不同孔径和不同孔间距的卸压钻孔布置方案，计算各卸压方案的巷道围岩应力场，定量研究卸压防冲效果，并通过现场工业性试验进行验证。  结果 结果表明：（1）以高应力区转移距离D为量化评价指标，当D ≥ 1.42时，巷帮支承压力曲线由“单峰型”向“双峰型”转化，标志着巷道围岩充分卸压，卸压防冲效果明显。（2）通过极差-方差分析，揭示高应力区转移程度的影响因素大小依次为孔深，孔径，孔间距。孔深主导高应力区转移距离，转移距离极大值与孔深呈正相关，而转移距离平均值与孔径呈正相关；当孔深一定时，转移距离平均值与孔间距呈线性负相关。  结论 现场工业性试验表明：优化卸压钻孔参数后，巷道掘进期间矿震能量以10² J为主，10³ J及其以上的大能量矿震较少；巷道顶底板移近量和观测孔平均钻屑量分别减少43%和30%。因此提出高应力区转移距离量化阈值和卸压钻孔参数优化体系，为冲击地压巷道高效卸压提供理论指导。

关键词:煤层巷道;钻孔卸压;钻孔布置参数;卸压防冲;高应力区转移距离

doi:10.16186/j.cnki.1673-9787.2025080026

基金项目:国家自然科学基金资助项目（52074102）

收稿日期:2025/08/18

修回日期:2025/11/13

出版日期:2026/01/28

Study on rational parameters of pressure relief and rock burst prevention borehole layout in the extraction roadways of Qianqiu Coal Mine

Feng Yongle1, Fang Jianchang1, Zhai Xinxian2,3, Zhang Zhen2, Zhang Zhiyong1

1.Henan Dayou Energy Company Limited， Sanmenxia  472300， Henan， China；2.School of Energy Science and Engineering， Henan Polytechnic University， Jiaozuo  454003， Henan， China；3.Henan International Joint Laboratory of Coalmine Ground Control， Jiaozuo  454003， Henan， China

Abstract: Objectives With the increase in coal seam mining depth and intensity， high-energy mine tremors frequently occur during the excavation of rockburst-prone coal mine roadways. Therefore， it is necessary to study the layout parameters of pressure relief boreholes on both sides of rockburst-prone roadways and their effectiveness in pressure relief and rockburst prevention.  Methods Using the excavation of a mining roadway in the pillar area of the 16082 bottom-slice fully mechanized caving face in Qianqiu Coal Mine as the engineering background， an orthogonal experimental design was employed to establish various pressure relief borehole layout schemes with different depths， diameters， and spacings. The stress fields of the surrounding rock for each pressure relief scheme were numerically calculated to quantitatively study the pressure relief and rockburst prevention effectiveness， and the results were validated through field industrial trials.  Results The results show that： （1） Using the transfer distance of the high-stress zone D as a quantitative evaluation index， when D≥1.42， the abutment pressure curve at the roadway sides transitions from a "single-peak" to a "double-peak" pattern， indicating sufficient pressure relief in the surrounding rock and a significant effect on pressure relief and rockburst prevention. （2） Range-variance analysis revealed that the influencing factors on the degree of high-stress zone transfer are， in order of significance： borehole depth， borehole diameter， and borehole spacing. Borehole depth primarily governs the transfer distance of the high-stress zone. The maximum transfer distance is positively correlated with borehole depth， while the average transfer distance is positively correlated with borehole diameter. When the borehole depth is constant， the average transfer distance shows a linear negative correlation with borehole spacing.  Conclusions Field industrial trials demonstrated that after optimizing the pressure relief borehole parameters， the energy of mining tremors during roadway excavation was predominantly at 10⟡ J， with fewer high-energy tremors of 10³ J and above. The convergence of the roof to floor and the average drilling cuttings volume from observation boreholes decreased by 43% and 30%， respectively. Therefore， a quantitative threshold for the transfer distance of the high-stress zone and an optimization system for pressure relief borehole parameters are proposed， providing theoretical guidance for efficient pressure relief in rockburst-prone roadways.

Key words: coal mine roadway; borehole pressure relief; borehole layout parameters; pressure relief and rock burst prevention; transfer distance of high-stress zone