泡沫混凝土回填层减震性能影响因素分析Influence Factors of Impact Reduction Performance of Foamed Concrete Backfill Layer
李利莎,谢清粮,唐黎军,杜建国,张洪海
摘要(Abstract)：
为研究泡沫混凝土回填层对地下坑道结构减震性能的影响,通过一个工程算例,建立直接地冲击作用下岩体中坑道结构内部震动响应的计算模型。运用LS-DYNA显式动力分析软件,分别计算了不同回填层影响因素下坑道结构的震动响应。计算结果表明:回填层厚度、泡沫混凝土屈服强度和地冲击荷载强度对隔震效果有着重要影响,这些因素在工程设计回填层时都应予以考虑。
关键词(KeyWords)： 泡沫混凝土;回填层;坑道结构;减震性能;影响因素
基金项目(Foundation):
作者(Author): 李利莎,谢清粮,唐黎军,杜建国,张洪海
参考文献(References)：
- [1]方秦,钱七虎.应力波与带软衬垫的地下结构动力相互作用[J].爆炸与冲击,1988,8(4):28-298.FANG Qin,QIAN Qi-hu.Dynamic interaction between stress waves and underground structure with crushable backpacking[J].Explosion and Shock Waves,1988,8(4):28-298.(in Chinese)
- [2]刘殿书,冯明德,王代华.复合防护结构的动力响应及破坏规律研究[J].中国矿业大学学报,2007,36(3):335-338.LIU Dian-shu,FENG Ming-de,WANG Dai-hua.Research on dynamic response and failure law of composite protective structure[J].Journal of China University of Mining&Technology,2007,36(3):335-338.(in Chinese)
- [3]骆文海.地下圆形结构在冲击荷载作用下的动力特性分析[J].防护工程,1991(2):6-10.LUO Wen-hai.Dynamic property analysis of underground circular structures under impact load[J].Protective Engineering,1991(2):6-10.(in Chinese)
- [4]张斌,徐金余,李乐,等.泡沫混凝土回填层在地下复合结构中的抗爆特性分析[J].四川建筑科学研究,2010,36(6):135-138.ZHANG Bin,XU Jin-yu,LI Le,et al.Analysis of antidetonational property of foam concrete backfill layers in underground compound structure[J].Sichuan Building Science,2010,36(6):135-138.(in Chinese)
- [5]李欢秋,张仕,欧阳科峰.岩体中地下多层圆形结构动力响应分析[J].岩石力学与工程学报,2012,31(S2):3503-3507.LI Huan-qiu,ZHANG Shi,OUYANG Ke-feng.Dynamic response analysis of underground multi-layer cylindrical structures in rocks[J].Chinese Journal of Rock Mechanics and Engineering,2012,31(S2):3503-3507.(in Chinese)
- [6]吴亮,卢文波,章可凌,等.侵彻爆炸荷载作用下坑道衬砌破坏机理及影响因素分析[J].岩石力学与工程学报,2005,24(S1):4900-4904.WU Liang,LU Wen-bo,ZHANG Ke-ling,et al.Analysis of affecting factors and failure mechanism of concrete lining under explosion loading[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(S1):4900-4904.(in Chinese)
- [7]刘晶波,杜义欣,闫秋实.地下箱型结构在爆炸冲击荷载下的动力反应分析[J].解放军理工大学学报(自然科学版),2007,8(5):520-524.LIU Jing-bo,DU Yi-xin,YAN Qiu-shi.Dynamic response of underground box structures subjected to blast load[J].Journal of PLA University of Science and Technology(Natural Science Edition),2007,8(5):520-524.(in Chinese)
- [8]杜修力,廖维张,田志敏,等.炸药爆炸作用下地下结构的动力响应分析[J].爆炸与冲击,2006,26(5):474-480.DU Xiu-li,LIAO Wei-zhang,TIAN Zhi-min,et al.Dynamic response analysis of underground structures under explosion-induced loads[J].Explosion and Shock Waves,2006,26(5):474-480.(in Chinese)