CAJ | 학술논문

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。
위극복전통강성란석결구체계,강성과대,수낙석충격역파배,장지괄응성차등결점,설상장기차폐구륜태퇴잔우강성란석결구전,형성일충강유병중적결구체계。이용폐구륜태적탄성화인성완해낙석적충격력,종이제고전통강성란석결구체계방호낙석적능력。병통과이용LS-DYNA유한원연건대폐구륜태재낙석충격작용하적모능성능진행료분석,계산결과표명폐구륜태구유교호적흡능효과,대제고강성란석결구체계적방호능력유흔대적방조。
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.