大型抗爆试验坑加载特性试验研究  

Test study of the loading characteristics of a fixed large-scale detonation facility

作　　者：张千里[1] 严东晋[1] 卢红标[1] 郭志昆[1] 王浩州[1] 

机构地区：[1]解放军理工大学国防工程学院,南京210007

出　　处：《防护工程》2013年第4期17-22,共6页Protective Engineering

摘　　要：为了研究大型抗爆试验坑加载特性，完善设备性能，利用导爆索加载技术在6m×6mx4m的大型抗爆试验坑内进行了爆炸试验，获得了爆炸波在不同标准砂层中传播的数据。根据试验测得的数据，分析了峰值压力和正压作用时间随药量和爆腔体积的变化规律，解释了爆炸波在标准砂中的传播特性，总结了不同砂层中压力与正压作用时间之间的关系及变化规律，为结构抗爆试验提供了依据。In order to investigate the loading characteristics of a fixed large-scale detonation facility and to improve equipment performance, a number of detonating tests of distributed prima cord was conducted in the blast chamber of a size of 6m x 6m x 4m of the fixed large-scale detonation facility and a large number of pressure data at differ ent depths of standard sand was obtained. Based on the measured data, an analysis of variation relations between the peak pressure, positive pressure duration, amount of explosive and volume of detonation cavity is presented and the blast wave propagation characteristics in the standard sand are explained. The variation relations between the peak pressure and the positive pressure duration in the standard sand are summarized, which can serve as a basis for the blast testing of protective structures.

关 键 词：抗爆试验 爆坑 爆炸波 标准砂 峰值压力 正压作用时间 

分 类 号：TU375.02[建筑科学—结构工程]