煤炭技术
煤炭技術
매탄기술
COAL TECHNOLOGY
2013年
11期
27-28,29
,共3页
关键层%应力%停采线
關鍵層%應力%停採線
관건층%응력%정채선
key strata%stress%stop production line
利用组合梁原理计算出井工开采过程中的关键层上部荷载，并且对关键层应力及应变进行计算，揭示了关键层断裂在下部煤层中的应力分布规律，从而提出巷道稳定判定准则，为确定回采工作面的停采线合理位置提供依据。
利用組閤樑原理計算齣井工開採過程中的關鍵層上部荷載，併且對關鍵層應力及應變進行計算，揭示瞭關鍵層斷裂在下部煤層中的應力分佈規律，從而提齣巷道穩定判定準則，為確定迴採工作麵的停採線閤理位置提供依據。
이용조합량원리계산출정공개채과정중적관건층상부하재，병차대관건층응력급응변진행계산，게시료관건층단렬재하부매층중적응력분포규률，종이제출항도은정판정준칙，위학정회채공작면적정채선합리위치제공의거。
The use of composite beam theory to calculate the joint work well in the process of mining key layer beam top load, and the key ctrata deformation and stress calculation, it is concluded that the key layer beam fracture in the lower coal seam, the stress distribution, and then puts forward the roadway stability criterion for well work combined mining working face in line position determine reasonable stop lay the foundation.
