|
|
|
| Research on roadway support based on self-stabilized balanced arch theory |
| Hou Zengping |
| Shaanxi Yanchang Petroleum Group Hengshan Weiqiang Coal Industry Co., Ltd., Yulin 719000, China |
|
|
|
|
Abstract 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.
|
|
|
|
|
|
| [ 1 ] 单仁亮，彭杨皓，孔祥松， 等. 国内外煤巷支护技术研究进展[ J ]. 岩石力学与工程学报，2019，38（ 12 ）：2 377 - 2 403.
[ 2 ] 李桂臣，杨 森，孙元田， 等. 复杂条件下巷道围岩控制技术研究进展[ J ]. 煤炭科学技术，2022，50（ 6 ）：29 - 45.
[ 3 ] 董方庭，宋宏伟，郭志宏，等. 巷道围岩松动圈支护理论 [ J ]. 煤炭学报，1994（ 1 ）：21 - 32.
[ 4 ] 褚晓威，吴拥政，石 蒙. 节理化脆性特厚煤层巷道大变形机理及控制技术[ J ]. 煤炭科学技术，2018，46（ 12 ）：98 - 106.
[ 5 ] 谭云亮，郭伟耀，赵同彬，等. 深部煤巷帮部失稳诱冲机理及“卸-固”协同控制研究[ J ]. 煤炭学报，2020，45（ 1 ）：66 - 81.
[ 6 ] 康红普. 我国煤矿巷道锚杆支护技术发展60年及展望[ J ]. 中国矿业大学学报，2016，45（ 6 ）：1 071 - 1 081.
[ 7 ] 侯公羽，梁金平，李小瑞. 常规条件下巷道支护设计的原理与方法研究[ J ]. 岩石力学与工程学报，2022，41（ 4 ）：691 - 711.
[ 8 ] 姚强岭，李英虎，夏 泽， 等. 基于有效锚固层厚度的煤系巷道顶板叠加梁支护理论及应用[ J ]. 煤炭学报，2022，47（ 2 ）：672 - 682.
[ 9 ] 司林坡，娄金福，杨景贺， 等. 轴向冲击下锚固锚杆变形与应力特征分析[ J ]. 煤炭学报，2022，47（ 10 ）：3 645 - 3 653.
[ 10 ] 文 兴. 矿山巷道分级合理支护方法研究与应用[ J ]. 矿业研究与开发，2020，40（ 4 ）：57 - 61.
[ 11 ] 黄庆享，郑 超. 巷道支护的自稳平衡圈理论[ J ]. 岩土力学，2016，37（ 5 ）：1 231 - 1 236. |
|
|
|
