煤炭技术
煤炭技術
매탄기술
Coal Technology
2015年
11期
60-61
,共2页
扩容%塑性软化%耦合作用
擴容%塑性軟化%耦閤作用
확용%소성연화%우합작용
dilatancy%plastic softening%coupling action
基于巷道开挖面的空间效应、岩体的扩容和塑性软化特性，建立围岩-支护结构耦合作用的稳态模型，分析支护位置与巷道位移和支护反力之间的关系。结果显示，岩体的软化和膨胀对支护反力和巷道位移等都有一定的影响，并且这一影响随着支护位置与开挖面距离的增大而减小。
基于巷道開挖麵的空間效應、巖體的擴容和塑性軟化特性，建立圍巖-支護結構耦閤作用的穩態模型，分析支護位置與巷道位移和支護反力之間的關繫。結果顯示，巖體的軟化和膨脹對支護反力和巷道位移等都有一定的影響，併且這一影響隨著支護位置與開挖麵距離的增大而減小。
기우항도개알면적공간효응、암체적확용화소성연화특성，건립위암-지호결구우합작용적은태모형，분석지호위치여항도위이화지호반력지간적관계。결과현시，암체적연화화팽창대지호반력화항도위이등도유일정적영향，병차저일영향수착지호위치여개알면거리적증대이감소。
Based on the spatial effect of excavation face, the dilatancy and plastic softening of rock, a steady-state model of coupling action between rock and support body is builded to analyze the influences of the spatial effect of excavation face, the dilatancy gradient and softening modulus on the deformation and pressure of the surrounding rock. The results show that the dilatancy gradient and softening modulus has a certain impact on the deformation and pressure of the surrounding rock, and this impact decreases with increasing distance between the excavation face and the support position;with increasing distance between then excavation face and the support position.
