土中钢板-混凝土筒结构抗爆性能研究  

Study on the anti-explosion performance of steel partition and reinforced concrete cylinder in soil

作　　者：朱黄浩 顾琳琳 王振[2] 吴汩 李胡军 ZHU Huang-hao;GU Lin-lin;WANG Zhen;WU Gu;LI Hu-jun(School of Safety Science and Engineering,Nanjing University of Science and Technology,Nanjing University of Science and Technology,Nanjing 210094;School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;Nanjing Fiberglass Research and Design Institute Co.,Ltd.,Nanjing 210012,China)

机构地区：[1]南京理工大学安全科学与工程学院,南京210094 [2]南京理工大学机械工程学院,南京210094 [3]南京玻璃纤维研究设计院有限公司,南京210012

出　　处：《工程爆破》2024年第3期20-28,共9页Engineering Blasting

基　　金：国家重点研发计划基金资助项目(2021YFC3002000);中央高校基本科研业务费专项资金资助项目(No.30922010918);国家自然科学基金资助项目(42002266)。

摘　　要：为探究地下爆炸荷载作用下土中钢板-混凝土筒结构的抗爆性能,采用多物质流固耦合计算方法,揭示了冲击波在土体介质中的传播规律,分析了钢板-混凝土筒结构的动力响应与损伤机理,开展了爆炸模型试验,获得了筒体附近的土压力分布及其迎爆面的变形时程曲线,并验证了数值模拟的准确性。在此基础上,与传统钢筋混凝土筒结构抗爆性能对比,分别评价了两种结构形式的破坏模式与损伤程度。结果表明,同等用钢率下,钢板-混凝土筒体抗冲击性能更好。To investigate the anti-blast performance of the steel plate-concrete cylinder structure in the soil under underground blast load,the multi-material fluid-structure coupling calculation method was used to reveal the propagation law of the shock wave in the soil medium,the dynamic response and damage mechanism of the steel-concrete cylinder structure were analyzed,the explosion model test was carried out,the earth pressure distribution near the cylinder and the deformation time history curve of the explosion surface were obtained,and the accuracy of the numerical simulation was verified.On this basis,compared with the anti-blast performance of the traditional reinforced concrete tube structure,the failure mode and damage degree of the two structural forms were evaluated.The results show that the impact resistance of the steel plate-concrete cylinder is better under the same steel consumption rate.

关 键 词：地下爆炸荷载 数值模拟 钢板-混凝土筒结构 动态响应 损伤评价 

分 类 号：TU398.9[建筑科学—结构工程] O383[理学—流体力学]