摘要
准确判定巷道围岩稳定性是进行巷道支护设计与安全施工的基础。对未确知测度理论进行优化,结合巷道围岩控制理论和相关研究成果,选取巷道埋深、跨度等6个主要影响因素作为巷道围岩稳定性分析的判别指标,以20组实测数据作为训练样本,建立了煤巷围岩稳定性分析的EW-UCA模型。为检验模型的可靠性,利用该模型,对潘四东矿4条煤巷围岩稳定性进行了分析研究。结果表明,该模型判别结果和实际情况完全一致,说明该模型具有较高的准确度和良好的实用性。
An accurate judgement on the surrounding rock stability of the mine gateway would be the base to conduct the support design and safety construction of the mine gateway. An optimization was made on the unascertained measure theory.In combination with the surrounding rock control theory and related study achievements of the gateway ,the buried depth and span of six main influence factors of the gateway were selected as the judging indexes to analyze the surrounding stability of the gate-way.Based on 20 groups of the site measured data as the training samples ,the EW-UCA model to ana-lyze the surrounding rock stability of the gateway was established.In order to test the reliability of the model ,the model was applied to the analysis study on the surrounding rock stability of four seam gate-ways in Pansi East Mine. The results showed that judging results of the model and the actual condition were fully the same ,which could show that the model could have a high accuracy and good practicabili-ty.
出处
《建井技术》
2015年第5期52-54,51,共4页
Mine Construction Technology
关键词
围岩稳定性
分类
未确知测度理论
煤巷
模型
surrounding rock stability
classification
unascertained measure theory
seam gateway
m o del
