| 10-201回风顺槽软弱夹层顶板及围岩控制技术 |
| |
| 引用本文： | 李建忠. 10-201回风顺槽软弱夹层顶板及围岩控制技术[J]. 江西煤炭科技, 2022, 0(1): 102-104,108. DOI: 10.3969/j.issn.1006-2572.2022.01.036 |
| |
| 作者姓名： | 李建忠 |
| |
| 作者单位： | 霍州煤电集团吕梁山煤电公司木瓜煤矿,山西 大武 033199 |
| |
| 摘 要： | 为保障木瓜矿10-201回风顺槽含软弱夹层顶板的围岩稳定,采用FLAC3D数值模拟软件进行软弱夹层位置对压力拱厚度就内边界位置的影响进行模拟分析;基于数值模拟结果,结合回风顺槽软弱夹层顶板的具体特征,确定围岩控制对策为协同耦合支护,包括:软弱夹层与硬岩层间的耦合、支护与围岩间的耦合和支护构件间的协同耦合.基于围岩控制对...
|
| 关 键 词： | 巷道掘进 软弱夹层 围岩控制 数值模拟 耦合支护 |
Surrounding Rock Control Technology in Weak Interlayer Roof in 10-201 Return-air Roadway |
| |
| Li Jianzhong. Surrounding Rock Control Technology in Weak Interlayer Roof in 10-201 Return-air Roadway[J]. Jiangxi Coal Science & Technology, 2022, 0(1): 102-104,108. DOI: 10.3969/j.issn.1006-2572.2022.01.036 |
| |
| Authors: | Li Jianzhong |
| |
| Affiliation: | (Mugua Colliery,Lvlin Energy and Chemical Co.,Huozhou Coal Electricity Group Co.,Ltd.,Dawu,Shanxi 033199) |
| |
| Abstract: | In order to ensure the stability of the roof surrounding rock with weak interlayer in the 10-201 return-air roadway, the author determines the coordinated coupling support with the coupling between weak interlayer and hard stratum, support and surrounding rock and the supporting components through the simulation analysis of the influence of the position of the weak interlayer on the pressure arch thickness and the position of the inner boundary by FLAC3 Dnumerical simulation software, and proposes the roadway support with pressure-yield bolt and anchor, I-typed steel protection table and grouting for key parts, which can guarantee the surrounding rock stability with the respective maximum roof subsidence and two sides’ displacement of 40 mm and 64 mm. |
| |
| Keywords: | roadway excavation weak interlayer numerical simulation coupling support |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
