土中拱形结构抗爆试验设计与分析  

Design and analysis of blast test of underground arch structure

作　　者：王鹏[1] 周健南[1] 金丰年[1] 夏志高[1] 范华林[2] 

机构地区：[1]解放军理工大学爆炸冲击防灾减灾国家重点实验室,江苏南京210007 [2]河海大学国防工程与装备结构分析实验室,江苏南京210098

出　　处：《解放军理工大学学报（自然科学版）》2013年第6期636-640,共5页Journal of PLA University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51308544;51078351);国家自然科学基金创新研究群体基金资助项目(51021001)

摘　　要：为实现在化爆条件下土中拱结构荷载分布规律、结构动态响应以及破坏模式等的试验,利用爆炸作用原理和传感器技术理论,在考虑结构抗爆试验基本要求的基础上,设计了野外拱结构爆炸试验。拱结构为现浇钢筋混凝土结构,安装传感器后进行覆土。为有效测量相关数据,试验使用了多种传感器,包括应变传感器、加速度传感器、压力传感器及位移传感器等。给出了拱结构抗爆试验传感器布置情况,介绍了测试基本原理,建立并分析了连接传感器、起爆和同步触发以及数据采集存储几个主要组成部分的动态测试系统。试验结果表明,试验设计满足抗爆试验要求,对其他类似的测试试验可提供一定参考,为土中拱形结构的设计提供依据。To research the response o{ arch structure under dynamic loading, an explosion test was designed according to the explosion principle, theory of sensor technology and the requirements of explosion on un- derground arch structure. The arch structure made by reinforced concrete was buried after installing sen- sors. In order to obtain valid measurement data, several types of sensors were used in the tests, including strain sensor, acceleration sensor, pressure sensor, displacement sensor,etc. In this paper, the basic re- quirements of explosion experiment on underground arch structure, as well as its basic principle, were in- troduced, and the dynamic test system mainly composed of sensors, initiation of explosion and synchro- nized trigger and data acquisition and storage, was constructed. Judged from the phenomena and results, this test can meet the requirements of blast test, and provide the reference for other similar test and the basis of the design of underground arch structure.

关 键 词：拱结构 土中爆炸 测试系统 传感器 

分 类 号：O348[理学—固体力学]