基于数值模拟的煤矿临综采面开切眼稳定性评估研究  

Stability evaluation of open-cut hole in fully mechanized mining face of coal mine based on numerical simulation

作　　者：何源 李中伟[2,3] HE Yuan;LI Zhongwei(Shandong Luxi Mining Co.,Ltd.,Heze 274700,China;Coal Mining and Design Department,Tiandi Science and Technology Co.,Ltd.,Beijing 100013,China;CCTEG Coal Mining Research Institute Co.,Ltd.,Beijing 100013,China)

机构地区：[1]山东鲁西矿业有限公司,山东菏泽274700 [2]天地科技股份有限公司开采设计事业部,北京100013 [3]中煤科工开采研究院有限公司,北京100013

出　　处：《陕西煤炭》2024年第11期35-43,共9页Shaanxi Coal

摘　　要：保证开切眼的稳定性是确保矿井安全高效生产的重要前提,并且对于回风系统的及时贯通也有重要意义。以新疆某矿A503开切眼围岩控制稳定性为研究对象,通过FLAC^(3D)建立开切眼模型,通过数值模拟研究计算,确定了支护参数的合理性。结果表明,巷道表面位移较小,变形量虽仍在增加,但增幅较小,围岩趋于稳定,保证了开切眼的稳定。也为类似条件下的开切眼施工及支护提供一定的参考。Ensuring the stability of the open-cut is an important prerequisite for ensuring the safe and efficient production of mine,and is also of great significance for the timely connection of the return air system.This paper takes the control stability of A503 open-cut hole surrounding rock of a mine in Xinjiang as the research object,establishes the open-cut hole model by FLAC^(3D),and determines the rationality of the supporting parameters by numerical simulation.The results show that the surface displacement of roadway is small,the deformation is still increasing,but the increase is small,and the surrounding rock tends to be stable,which ensures the stability of open-cut hole.Our study provides some reference for the construction and support of open-cut hole under similar conditions.

关 键 词：开切眼 稳定性 数值模拟 FLAC^(3D) 

分 类 号：TD353[矿业工程—矿井建设]