大柳塔煤矿沿空留巷柔模砼墙合理宽度研究及应用OA北大核心CSTPCD
Research and application of reasonable width of flexible formwork concrete wall for retaining roadways along the gob in Daliuta coal mine
针对浅埋煤层沿空留巷柔模砼墙留设宽度问题,以大柳塔煤矿 52605 工作面为工程背景,运用相似模拟试验、数值模拟和理论分析方法,研究大采高沿空留巷柔模砼墙合理宽度,构建柔模砼墙沿空留巷力学模型.研究结果表明:随着砼墙尺寸增加,在采场顶板回转下沉过程中柔模砼墙非对称变形现象更加明显;工作面回采阶段实体煤帮侧出现的应力集中与柔模砼墙尺寸无明显相关性;砼墙宽度为 1.2 m时,能够满足巷道支护强度,围岩变形较小,且巷肩处不会出现应力集中;在现场实测中,…查看全部>>
Aiming at the problem of the width of the flexible concrete wall of the gob-side entry retaining in shallow coal seam,the 52605 working face of Daliuta coal mine is taken as the engineering background.Using the methods of similar simulation test,numerical simulation and theoretical analysis,the reasonable width of flexible formwork concrete wall in gob-side entry retaining with large mining height is systematically studied.The mechanical model of gob-side en…查看全部>>
王巍
国家能源集团神东煤炭集团有限责任公司 神东煤炭技术研究院,陕西 榆林 719315
矿山工程
沿空留巷巷旁支护柔模砼墙FLAC3D模拟围岩控制
gob-side entry retainingroadside supportflexible formwork concrete wallFLAC3D simulationsurrounding rock control
《辽宁工程技术大学学报（自然科学版）》 2024 (3)
265-272,8
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