利用废旧轮胎防治滚石的数值模拟分析  

Numerical analysis of rock fall prevention using discarded tires

作　　者：罗祥[1] 石少卿[2] 严庆平[3] 刘晓晖[1] 

机构地区：[1]92225部队后勤处 [2]解放军后勤工程学院军事建筑工程系 [3]后勤工程学院工程技术应用研究院建筑设计院

出　　处：《中国地质灾害与防治学报》2011年第4期36-40,共5页The Chinese Journal of Geological Hazard and Control

摘　　要：为克服传统刚性拦石结构体系,刚性过大,受落石冲击易破坏,场地适应性差等缺点,设想将汽车废旧轮胎堆栈于刚性拦石结构前,形成一种刚柔并重的结构体系。利用废旧轮胎的弹性和韧性缓解落石的冲击力,从而提高传统刚性拦石结构体系防护落石的能力。并通过利用LS-DYNA有限元软件对废旧轮胎在落石冲击作用下的耗能性能进行了分析,计算结果表明废旧轮胎具有较好的吸能效果,对提高刚性拦石结构体系的防护能力有很大的帮助。Since conventional rigid rockfall barrier wall usually has a massive cross section,many field limits and limited kinetic energy absorption capability,a new way to prevention rockfall was presented which is put the waste tires in front of the rigid rockall barrier to form a rigid and flexible structure system.With the elasticity and toughness of the waste tires,the new structure could enhance the ability to prevent rockfall disaster.Used the FEM software named LS-DYNA to analyze the energy consumption of waste tires under the collision of rockfall,the result indicate that the waste tire has good energy absorption,which is useful for the improvement of the rigid rockfall barrier.

关 键 词：废旧轮胎 落石灾害 刚性拦石结构 

分 类 号：TU457[建筑科学—岩土工程]