CAJ | 학술논문

针对影响中隔墩动应力分布的各种因素,包括中隔墩的宽度、力学参数、两侧岩体的爆破开挖顺序等,分别建立不同的有限元计算模型,利用ANSYS5.5.2有限元分析软件对中隔墩在爆炸荷载作用下的应力分布情况进行了计算、分析.还对沿中隔墩高程分布的质点振速的放大效应进行了讨论.结果表明中隔墩的宽度、力学参数、两侧岩体的爆破开挖顺序对中隔墩的应力分布均有很大的影响.实际施工中应对这些因素进行严格控制,以确保中隔墩的安全与稳定.
침대영향중격돈동응력분포적각충인소,포괄중격돈적관도、역학삼수、량측암체적폭파개알순서등,분별건립불동적유한원계산모형,이용ANSYS5.5.2유한원분석연건대중격돈재폭작하재작용하적응력분포정황진행료계산、분석.환대연중격돈고정분포적질점진속적방대효응진행료토론.결과표명중격돈적관도、역학삼수、량측암체적폭파개알순서대중격돈적응력분포균유흔대적영향.실제시공중응대저사인소진행엄격공제,이학보중격돈적안전여은정.
 FEM analyzing models are established for various factors affecting the dynamic stress distribution in rock wall. These factors include widths of rock wall,mechanical parameters,and the excavating order of rock wall. The stress distribution in the rock wall is calculated and analyzed under the blasting loads with FEM software ANSYS5.5.2. The magnifying effect of velocity along the height of rock wall are also discussed. The results show that widths of rock wall,mechanical parameters,and the excavating order of rock wall all have great effects on the dynamic stress distribution in rock wall. These factors must be strictly controlled for the safety and stability of rock wall in the construction.