摘要
对某公路隧道的临时支护结构进行动态响应分析。临时支护结构由钢骨架和喷射混凝土构成,采用ANSYS分析其在不同工况下的动态响应。并且将其简化为单一混凝土材质薄壳支护结构模型,为后期对隧道整体模型在爆破载荷作用下的动力分析完成前期准备工作。在对模型进行各阶模态分析时,发现其各阶模态固有频率处于爆破振动波主频段内,为隧道爆破安全施工提供了参考。
The dynamic response of a temporary support structure of a highway tunnel was analyzed in this article. The dynamic response at different conditions of the temporary support structure,composed of a skeleton and concrete lining structure ,was analyzed by ANSYS. With simplifying it as single concrete material shell supporting structure model,it completed the preparatory work of the dynamicanalysis of the whole tunnel model under blasting load. It was found that the natural frequency of eachorder modal was within the main band of blasting vibration wave when doing the modal analysis of finite element model,which provided the reference for the safety of the blasting construction of the tunnel.
作者
龚相超
黄龙
杜文杰
夏世林
许池
GONG Xiangchao;HUANG Long;DU Wenjie;XIA Shilin;XU Chi(Wuhan University of Science and Technology,Wuhan 430065,Hubei ,China)
出处
《江汉大学学报（自然科学版）》
2016年第6期552-556,共5页
Journal of Jianghan University：Natural Science Edition
基金
国家自然科学基金资助项目(51404175)
湖北省大学生创新创业训练计划项目(201510488035)
关键词
公路隧道
临时支护结构
ANSYS模态分析
爆破振动波主频段
爆破安全施工
highway tunnel
temporary support structure
ANSYS modal analysis
main band of blasting vibration wave
safety of blasting construction
