CAJ | 학술논문

以2013年芦山7.0级地震生命通道S210线滚石灾害防治为背景，在崩塌滚石灾害特征调查和研究的基础上，根据S210线应急抢险的需求，提出一种新型轻钢结构滚石防护棚洞技术：采用钢板和槽钢为主骨架，双层钢板夹EPS材料为顶板，并将顶板设为20°～25°以提高抗冲击能力。通过动力有限元数值模拟，开展滚石冲击荷载下轻钢结构棚洞动力响应机理与优化设计研究。计算结果表明：轻钢结构棚洞具有较强的抗滚石冲击能力，能承受1500 kJ滚石冲击能量，且施工方便快捷，不影响正常交通，是S210线应急保通较为理想的滚石防护措施。目前轻钢结构棚洞已在S210线滚石危险区段投入使用，效果显著，对确保震后S210线畅通和灾后重建发挥了重要作用，也可在类似山区公路滚石灾害防治中推广应用。
이2013년호산7.0급지진생명통도S210선곤석재해방치위배경，재붕탑곤석재해특정조사화연구적기출상，근거S210선응급창험적수구，제출일충신형경강결구곤석방호붕동기술：채용강판화조강위주골가，쌍층강판협EPS재료위정판，병장정판설위20°～25°이제고항충격능력。통과동력유한원수치모의，개전곤석충격하재하경강결구붕동동력향응궤리여우화설계연구。계산결과표명：경강결구붕동구유교강적항곤석충격능력，능승수1500 kJ곤석충격능량，차시공방편쾌첩，불영향정상교통，시S210선응급보통교위이상적곤석방호조시。목전경강결구붕동이재S210선곤석위험구단투입사용，효과현저，대학보진후S210선창통화재후중건발휘료중요작용，야가재유사산구공로곤석재해방치중추엄응용。
Based on prevention and cure of rock-fall hazard in the life line S21 0 after Lushan M7.0 earth-quake in 201 3 ,and according to the investigation on distribution and risk zoning study on the disasters,a new light steel rock-shed technology is proposed in accordance with the emergency needs of the line.Dynamic response and optimization design of the rock-shed is analyzed by dynamic finite element method.The results show that the light steel rock-shed structure,in a manner,saved the construction investment,could be constructed quickly and in the greatest degree ensure the structure safety and reliability,which gives this technology a vast prospect to ensure the road smooth after earthquake.And now the project has been completed and come into service on the road of S21 0 line.It proves that the technology has played an active role to ensure the S21 0 line traffic smooth.Meanwhile,the technology could be applied to the similar mountainous road which might encounter the collapses and rock-falls dis-asters.