托顶煤巷道易片冒顶板变形机理与超前导管预注浆控制技术研究OA北大核心CSTPCD
Study on the deformation mechanism of prone to caving roof in roadways with top coal and the control technology of advanced pipe pre-grouting
目的 为探究厚煤层易片冒区域托顶煤巷道顶板变形破坏机理,并对易片冒区托顶煤巷道顶板进行有效控制,方法 以常村煤矿2701工作面皮带运输巷为例,通过等截面梁理论分析托顶煤巷道顶板破断成因,研究托顶煤巷道顶板的稳定性与巷道宽度和顶煤强度的关系.通过极限平衡准则得到巷帮位移的计算公式,证明托顶煤巷道具有帮顶协同变形机制.建立托顶煤巷道数值模型,研究巷道埋深、侧压系数、顶煤厚度和顶煤强度与托顶煤巷道围岩稳定性的关系.结果 结果表明:巷道埋深越大,其对托顶…查看全部>>
Objectives To explore the deformation and failure mechanism of the roof of the roadway with top coal in thick coal seams in areas prone to caving,and to control the roof of the roadway with top coal in such areas,Methods The belt roadway of the 2701 working face of Changcun Coal Mine was taken as an example,the cause of the roof fracture of the roadway with top coal was analyzed through the theory of uni-form beam.The conclusion was that the stability of the…查看全部>>
陈晓祥;韩文宇
河南理工大学 能源科学与工程学院,河南 焦作 454000||煤炭安全生产与清洁高效利用省部共建协同创新中心,河南 焦作 454000河南理工大学 能源科学与工程学院,河南 焦作 454000
矿山工程
厚煤层托顶煤巷道顶板破断机理超前导管注浆帮顶联合控制技术
thick coal seamroadway with top coalfracture mechanism of roofadvanced pipepre-groutingcombined control technology of roadway side and roof
《河南理工大学学报（自然科学版）》 2024 (4)
1-11,11
国家自然科学基金资助项目(U1504515,51304068)中国煤炭工业协会指导性研究计划项目(MTKJ2015-251)河南省高等学校青年骨干教师培养计划项目(2017GGJS055)河南省高校基本科研业务费专项项目(NSFRF140134)
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