基于弹性力学的圆形隧道岩爆分析
Analysis of Rock Burst in Circular Tunnel Based on Elastic Mechanics
摘要:
岩爆是高应力条件下一种常见的地质灾害。在地下硐室开挖过程中，开挖面应力释放为零，硐室围岩产生内力重分布和应力集中。聚积在硬脆性岩体中的应变能，在一定条件下会猛烈释放，导致岩石爆裂并弹射出来，严重威胁着现场施工人员、机械设备的安全。本文将采用弹性力学的基本原理分析对长圆形隧道进行分析。
Abstract:
Rock burst is a common geological disaster under high stress condition. During the excavation of underground chamber, the stress of excavation surface is released to zero, and the redistribution of internal force and stress concentration appear in the surrounding rock. In a certain condition, the strain energy accumulation in hard brittle rock mass will be violently released and it will cause rock burst and ejection, which is a serious threat to the construction site personnel and equipment safety. In this paper, I will use the basic principle of elastic mechanic to analyze oblong tunnel.
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