留小煤柱沿空掘巷技术OA北大核心
Gob-side Entry Driving Technology of Remaining Small Coal Pillar
随着锚杆支护技术的推广应用,沿空掘巷中传统的留设大煤柱的做法,逐渐被留设小煤柱所取代,留设小煤柱护巷成为目前沿空掘巷技术的主要发展方向之一。针对康河煤矿2#煤层,运用理论计算及数值模拟分析,得出了沿空掘巷小煤柱的合理宽度为6 m。现场应用试验表明,巷道围岩变形得到了有效控制,巷道维护效果良好。
With the promotion and application of bolting technology,the traditional method of remaining big coal pillar in gob-side entry driving gradually replaced by remaining small coal pillar,and the method remaining small coal pillar for supporting the roadway has became one of the main development direction of gob-side entry driving technology.Aiming at the No.2 coal seam of Kanghe coal mine,with theoretical calculations and numerical simulation analysis,this pap…查看全部>>
高浩;崔廷锋;张魁;徐新斌
中国矿业大学安全工程学院,江苏徐州221116江苏建筑职业技术学院矿业工程学院,江苏徐州221116江苏建筑职业技术学院矿业工程学院,江苏徐州221116江苏建筑职业技术学院矿业工程学院,江苏徐州221116
矿业与冶金
小煤柱沿空掘巷数值模拟
small coal pillargob-side entry drivingnumerical simulation
《煤矿安全》 2012 (4)
106-109,4
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