摘要
为解决宁东矿区矿井巷道支护稳定性差及生产接续紧张等问题,以宁东梅花井煤矿232206工作面运输巷支护优化为研究背景,通过现场调研、理论分析等研究手段,揭示了巷道在原支护方案下存在的问题,决定采用锚杆柔模条带碹的支护方式进行巷道支护优化,通过理论计算等手段发现锚杆条带碹支护可以显著优化该巷道支护。基于此,提出了4种巷道支护优化方案进行巷道非碹体段支护,3种巷道支护优化方案进行巷道碹体段支护,之后借助数值模拟对巷道支护优化方案进行了分析对比。结果表明,非碹体段选用方案4,更为安全、经济适用,碹体段选用方案3更为合理,其次可以考虑采用方案2。该研究在宁东矿区以及同种工况矿区具有一定的推广借鉴意义。
To address the increasingly prominent stability issues of mine roadway supporting and tight production continuity in the Ning-dong mining area,taking the optimization of transportation roadway supporting in the No.232206 working face of Ningdong Meihuajing Coal Mine as the research background,through on-site investigation,theoretical analysis and other research methods,the problems exist-ing in the roadway under the original supporting scheme were revealed.It was decided to adopt the supporting method of anchor rod flex-ible formwork strip arches for roadway supporting optimization.Through theoretical calculations and other methods,it was found that an-chor rod flexible formwork strip arches supporting can significantly optimize the roadway supporting.Based on this,four optimization schemes for roadway supporting were proposed for non arch section supporting,and three optimization schemes for roadway supporting were proposed for arch section supporting.Then,numerical simulations were used to analyze and compare the optimization schemes for roadway supporting.The results indicate that option 4 is safer and more cost-effective for non arch sections.It is more reasonable to choose option 3 for the arch section,and option 2 can be considered as a second option.This study has certain promotional and reference significance in the Ningdong mining area and mining areas under the same working conditions.
作者
刘文学
高建
Liu Wenxue;Gao Jian(Xian Coal Mining Machinery Co.,Ltd.,Xi'an 710054;Inner Mongolia Weihua Mining Co.,Ltd.,Erdos 016299,China)
出处
《能源与环保》
2025年第11期369-377,共9页
CHINA ENERGY AND ENVIRONMENTAL PROTECTION
关键词
柔模条带碹
巷道支护
支护优化
数值模拟
组合梁理论
flexible formwork strip arch
roadway supporting
supporting optimization
numerical simulation
composite beam theory
