Shaanxi Yanchang Petroleum Group Hengshan Weiqiang Coal Industry Co., Ltd.

巷道支护对巷道稳定性及掘进工程进度影响较大，若支护强度不足，导致巷道失稳，引起安全事故；若支护强度过大，则造成不必要的开支且降低巷道掘进工程进度。为解决魏墙煤矿盘区巷道支护难题，提高巷道掘进工程进度，应用自稳平衡拱理论对魏墙煤矿三盘区巷道进行支护参数设计，采用FLAC3D数值模拟软件对巷道稳定性进行检验，并对两种支护方案消耗材料进行对比分析，使其兼顾巷道稳定性的同时，提高魏墙煤矿三盘区巷道的掘进工程进度。研究表明，基于自稳平衡拱理论的支护方案较原方案共缩减了29 000根锚杆、2 000根锚索及其对应的托盘、锚固剂等材料，降低了矿井生产成本，提高了巷道掘进工程进度，巷道稳定性未有明显降低，满足矿井安全生产要求。

Roadway support has a great influence on the stability of roadway and the progress of excavation engineering. If the support strength is insufficient, it will lead to the instability of roadway and cause safety accidents. If the support strength is too large, it will cause unnecessary expenditure and reduce the progress of roadway excavation. In order to solve the problem of roadway support in Weiqiang Mine and improve the progress of roadway excavation, this study designed the support parameters of the roadway in the third panel of Weiqiang Mine based on the theory of self-stable balanced arch. FLAC3D numerical simulation software was used to test the stability of the roadway, and the consumption materials of the two support schemes were compared and analyzed, so as to further improve the progress of roadway excavation in the third panel of Weiqiang Mine while taking into account the stability of the roadway. The research showed that the support scheme based on the self-stable equilibrium arch theory reduced 29 000 bolts, 2 000 anchor cables and their corresponding trays, anchoring agents and other materials compared with the original scheme, which greatly reduced the production cost of the mine, improved the progress of the roadway excavation project, and the stability of the roadway was not significantly reduced, which met the requirements of mine safety production.

侯增平. 基于自稳平衡拱理论的巷道支护研究[J]. 煤炭与化工, 2024, 47(3): 22-26，33..

Hou Zengping. Research on roadway support based on self-stabilized balanced arch theory. CCI, 2024, 47(3): 22-26，33..