直墙拱顶地下结构在爆炸地震波作用下的动力响应

范鹏贤;王明洋;冯淑芳;王德荣;李杰;

振动与冲击 ›› 2014, Vol. 33 ›› Issue (22) : 183-187.

PDF(1650 KB)
PDF(1650 KB)
振动与冲击 ›› 2014, Vol. 33 ›› Issue (22) : 183-187.
论文

直墙拱顶地下结构在爆炸地震波作用下的动力响应

  • 范鹏贤1,王明洋1,2,冯淑芳3,王德荣1,李杰1,2
作者信息 +

The dynamic response of underground straight-wall-round-arch structure to the explosion seismic wave

  • Fan Pengxian1 Wang Mingyang1,2 Feng Shufang3 Wang Derong1 Li Jie1,2
Author information +
文章历史 +

摘要

地下坑道在爆炸地震波的冲击作用下的动力响应是防护工程设计和评估的重要问题。本文对有弹性垫层的地下直墙拱顶结构在爆炸地震波作用下的动力响应进行了研究,采用共同变形理论和矩阵力法考虑衬砌与围岩的相互作用,建立了爆炸地震波作用下地下防护结构动力响应的快速计算方法。利用建立的计算方法分析了围岩等级、垫层参数和荷载作用形式等对典型直墙圆拱结构动力响应的影响,分析结果表明,围岩等级对结构的动力响应具有显著的影响,围岩质量越好,结构的位移和内力越小;垫层具有延迟响应和降低响应峰值的作用,荷载作用形式也具有一定的影响。

Abstract

The dynamic response of underground structure impacted by explosion is of great importance in the designing and evaluating of the protective engineering. The computational method for the dynamic response of straight-wall-round-arch structure to explosion seismic wave was investigated on the foundation of common deformation theory and matrix force method, and a rapid computation method is established. By the preseted method, the dynamic response of a typical straight-wall-round-arch structure was studied under different surrounding rock, subcrust and impact loading conditions. Results show that the rock grade, the thickness of subcrust and the loading mode all have notable influence on the structure’s dynamic response. The better the rock is, the lower the displacement and the internal force will be. And as the thickness of the subcrust increases, the peak value of the dynamic response decreases and delays.

关键词

爆炸地震波 / 防护工程 / 直墙拱顶结构 / 动力响应

Key words

explosion seismic wave / protective engineering / straight-wall-round-arch structure / dynamic response

引用本文

导出引用
范鹏贤;王明洋;冯淑芳;王德荣;李杰;. 直墙拱顶地下结构在爆炸地震波作用下的动力响应[J]. 振动与冲击, 2014, 33(22): 183-187
Fan Pengxian Wang Mingyang;Feng Shufang Wang Derong Li Jie;. The dynamic response of underground straight-wall-round-arch structure to the explosion seismic wave[J]. Journal of Vibration and Shock, 2014, 33(22): 183-187

PDF(1650 KB)

Accesses

Citation

Detail

段落导航
相关文章

/