摘要
以某矿3^#煤层为研究对象，详细阐述了留设煤柱应考虑的主要因素，通过数值模拟计算和现场实测研究不同宽度煤柱的应力分布情况、塑性破坏分布、煤柱应力和变形量随工作面回采变化规律等，最终确定该矿井3^#煤层综放工作面回采巷道保护煤柱应留设15-18m。
With a coal mine No.3 coal seam as a research object,elaborated the main factors to consider leaving in the pillar, by numerical simulation and field measurement of different widths coal pillar stress distribution, the distribution of plastic failure, stress and deformation of coal pillar mining face with variation, etc. Finalize the mine 3^# coal seam mining roadway protective pillar should remain located 15-18 m.
出处
《煤炭技术》
CAS
北大核心
2016年第1期68-70,共3页
Coal Technology
关键词
回采巷道
保护煤柱
数值模拟
现场实测
综放工作面
roadway
protection pillar
numerical simulation
field measurement
fully mechanized caving coal face
