山西焦煤科技
山西焦煤科技
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SHANXI COKING COAL SCIENCE & TECHNOLOGY
2015年
1期
25-27
,共3页
薄煤层%对棚支护%数值模拟%棚索耦合
薄煤層%對棚支護%數值模擬%棚索耦閤
박매층%대붕지호%수치모의%붕색우합
Thin seam%Shelve supporting%Numerical simulation%Shed and cable coupling
晋能煤运临汾公司金源达煤业31118工作面下副巷为薄煤层回采巷道，当采用工字钢棚对棚支护时，经常出现顶梁破断，棚腿扭曲这些典型的结构性失稳现象，因此，提出了棚索耦合支护方式，并采用FLAC数值模拟软件进行模拟。结果表明，棚索耦合支护能很好地改善围岩应力状态，围岩控制效果显著。工业化试验结果表明：棚索耦合支护能够有效地控制巷道围岩变形，巷道支护效果良好。
晉能煤運臨汾公司金源達煤業31118工作麵下副巷為薄煤層迴採巷道，噹採用工字鋼棚對棚支護時，經常齣現頂樑破斷，棚腿扭麯這些典型的結構性失穩現象，因此，提齣瞭棚索耦閤支護方式，併採用FLAC數值模擬軟件進行模擬。結果錶明，棚索耦閤支護能很好地改善圍巖應力狀態，圍巖控製效果顯著。工業化試驗結果錶明：棚索耦閤支護能夠有效地控製巷道圍巖變形，巷道支護效果良好。
진능매운림분공사금원체매업31118공작면하부항위박매층회채항도，당채용공자강붕대붕지호시，경상출현정량파단，붕퇴뉴곡저사전형적결구성실은현상，인차，제출료붕색우합지호방식，병채용FLAC수치모의연건진행모의。결과표명，붕색우합지호능흔호지개선위암응력상태，위암공제효과현저。공업화시험결과표명：붕색우합지호능구유효지공제항도위암변형，항도지호효과량호。
Structural instability phenomenons such as fracture of top beam and deformation of shelve legs usually occurres when H-shape steel shelve supporting is applied on thin seam mining roadway in Jinyuanda coal company 31118 working face auxiliary lane.Therefore,the supporting way of shed and cable coupling is put forward,and FLAC numerical simulation soft is adopted to simulate.The simulation results show that the supporting way of shed and cable coupling can improve the state of surrounding rock stress,and the effect of controlling surrounding rock is remarkable.The industrial test results also show that shed and cable coupling supporting can effectively control the deformation of surrounding rock,thus the effect of supporting roadway is satisfactory.
