棚洞受滚石法向冲击破碎分析

Analysis on rolling stone impact crash for shed-tunnel

针对有限元等连续方法计算物体受冲击破坏的大变形问题,采用SPH和有限元耦合方法,对棚洞受滚石冲击破碎进行了分析,得出了滚石法向冲击棚洞结构的破碎规律,为滚石防护结构设计提供了依据。

In light of impacting damage deformation calculating problems with finite element and other continuous methods, the paper applies SPH and finite element coupling method, analyzes rolling stone impact crash for tunnel-shed, and obtains damage law of rolling stone method for im- pact tunnel-shed, which has provided some basis for rolling stone protecting structure design.