Huadian Coal Industry Group Co., Ltd.
Gansu Wansheng Mining Co., Ltd.
School of Mines, China University of Mining and Technology
Jiangsu Mine Seismic Monitoring Engineering Laboratory, China University of Mining and Technology
Yangchangwan Coal Mine, CHN Energy Ningxia Coal Industry Co., Ltd.

目前巷道快速掘进技术研究主要针对巷道快速掘进的影响因素、设备优化等，对巷道空顶距、支护参数、施工工艺联合优化的研究较少。针对该问题，以甘肃省环县甜水堡煤矿2号井1309工作面回风巷为研究对象，对煤巷支护参数与设备工艺优化方法进行研究。分析了巷道掘进各工序的用时特征，得出掘进、永久支护、临时支护用时最多，占比分别为25.3%，49.9%，6.2%；以耗时最长的3个工序为重点优化方向，构建了掘进工作面空顶区顶板力学模型，得出掘进工作面理论最大空顶距为2.32 m，考虑现场受设备、地质、工艺等因素影响，确定空顶距为2.0 m；根据不同支护方案下巷道围岩应力、变形、塑性区的分布特征，结合巷道高效掘进需求，确定最佳锚杆间排距为800 mm×1 000 mm。结合巷道实际的地质条件，配套优化了掘进设备、临时支护工艺与施工工艺。现场试验结果表明，优化后最大日进尺由8 m提高到10 m，巷道掘进速度提高了25%；巷道围岩变形基本处于稳定状态，最大变形量为226 mm。优化方案不仅保证了巷道的安全稳定，还显著提高了巷道的掘进速度。

Currently, research on rapid excavation technology mainly focuses on the influencing factors and equipment optimization of rapid excavation. There is relatively little research on the joint optimization of roadway empty roof distance, support parameters, and construction technology. In order to solve the above problem, the study focuses on the return air roadway of the 1309 working face in the No.2 of Tianshuibao Coal Mine in Huanxian County, Gansu Province. The study investigates the optimization methods of coal roadway support parameters and equipment technology. The study analyzes the time features of each process of roadway excavation. It is found that excavation, permanent support, and temporary support take the most time, accounting for 25.3%, 49.9%, and 6.2% respectively. Focusing on the three most time-consuming processes as the optimization direction, a mechanical model of the roof in the goaf area of the excavation face is constructed. The theoretical maximum empty roof distance of the excavation face is obtained to be 2.32 meters. Considering the influence of equipment, geology, technology and other factors on site, the empty roof distance is determined to be 2.0 meters. Based on the distribution features of stress, deformation, and plastic zone in the surrounding rock of the roadway under different support schemes, combined with the efficient excavation requirements of the roadway, the optimal spacing between anchor rods is determined to be 800 mm × 1000 mm. Based on the actual geological conditions of the roadway, the excavation equipment, temporary support technology, and construction technology are optimized and matched. The on-site test results show that after optimization, the maximum daily footage has been increased from 8 meters to 10 meters, and the roadway excavation speed has been increased by 25%. The deformation of the surrounding rock in the roadway is basically in a stable state, with a maximum deformation of 226 mm. The optimization plan not only ensures the safety and stability of the roadway, but also significantly improves the excavation speed of the roadway.

炼焦煤资源绿色开发全国重点实验室开放课题项目(41040220181107)。

孟键，朱长华，牛志军，等. 甜水堡煤矿煤巷支护参数与设备工艺优化研究[J]. 工矿自动化，2024，50（3）：151-159.

MENG Jian, ZHU Changhua, NIU Zhijun, et al. Research on optimization of coal roadway support parameters and equipment technology in Tianshuibao Coal Mine[J]. Journal of Mine Automation，2024，50（3）：151-159.