江西煤炭科技
江西煤炭科技
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JIANGXI COAL SCIENCE & TECHNOLOGY
2015年
2期
114-116
,共3页
深井%软岩巷道%围岩变形%底臌控制%效果分析
深井%軟巖巷道%圍巖變形%底臌控製%效果分析
심정%연암항도%위암변형%저고공제%효과분석
deep mine%soft rock roadway%surrounding rock deformation%control of floor heave%effect analysis
以现场实测为手段掌握了李家庄煤矿3302大采高孤岛工作面顶板来压强度、来压步距和支架受力情况，并通过宏观观测了解了该工作面煤壁片帮、架后悬顶和支架活柱下缩量等情况。由矿压观测结果可知，ZY －4000／17／37型掩护式液压支架适应性较好，能够满足3302孤岛工作面开采条件，治理煤壁片帮和底臌是工作面开采的关键。
以現場實測為手段掌握瞭李傢莊煤礦3302大採高孤島工作麵頂闆來壓彊度、來壓步距和支架受力情況，併通過宏觀觀測瞭解瞭該工作麵煤壁片幫、架後懸頂和支架活柱下縮量等情況。由礦壓觀測結果可知，ZY －4000／17／37型掩護式液壓支架適應性較好，能夠滿足3302孤島工作麵開採條件，治理煤壁片幫和底臌是工作麵開採的關鍵。
이현장실측위수단장악료리가장매광3302대채고고도공작면정판래압강도、래압보거화지가수력정황，병통과굉관관측료해료해공작면매벽편방、가후현정화지가활주하축량등정황。유광압관측결과가지，ZY －4000／17／37형엄호식액압지가괄응성교호，능구만족3302고도공작면개채조건，치리매벽편방화저고시공작면개채적관건。
Stress strength ,stress pace and support force of roof in 3302 coal face of island with large mining height has been mastered by site practice measure , and rib fall , rear suspension and support living column shrinkage have also obtained by macro observation .Strata behavior results show that the adaptability of ZY -4000/17/37 hydrolic shield support is good and can meet the mining condition of 3302 island working face ,and that treating rib fall and floor heave is the key of mining .
