泄压坑道式工房内爆效应工程计算方法研究  

Engineering Calculation Method of Explosion Effect Inside Partial Confined Tunnel Structure

作　　者：陈泰年 陶西贵 李红卫 曾丹 张珊珊 尹帅 张雨帅 CHEN Tainian;TAO Xigui;LI Hongwei;ZENG Dan;ZHANG Shanshan;YIN Shuai;ZHANG Yushuai(Institute of Defense Engineering,Academy of Military Sciences,Beijing 100850,China;China Safety Technology Research Academy of Ordnance Industry,Beijing 100053,China;Xi'an Aerospace Chemical Propulsion Co.,Ltd.,Xi'an,Shaanxi 710025,China)

机构地区：[1]军事科学院国防工程研究院,北京100850 [2]中国兵器工业火炸药工程与安全技术研究院,北京100053 [3]西安航天化学动力有限公司,陕西西安710025

出　　处：《北京理工大学学报》2024年第6期588-596,共9页Transactions of Beijing Institute of Technology

基　　金：国家自然科学基金资助项目(52102392)。

摘　　要：为探索泄压坑道式工房内爆炸效应规律,完善超压工程计算方法,基于量纲分析方法建立泄压坑道式工房内爆炸时物流通道内部及工程口部外空气冲击波超压的量纲一的函数,阐明了泄压坑道式工房缩尺模型试验中物理量的相似关系。通过对1∶6和1∶4缩尺模型内爆炸试验的超压数据和工程口部外等压线分布规律的归纳对比,验证了冲击波超压等关键参数的几何相似性。通过拟合不同药量1∶4模型内爆试验和数值仿真结果数据,建立了基于冲击波传播经验公式的物流通道内冲击波超压分布、工程口部外冲击波超压分布的工程计算方法。研究发现,物流通道内及工程口部外工程计算方法与试验数据吻合较好,最大相对误差分别为9.5%和10.6%。工程计算方法可为坑道式工房的设计和安全设防距离确定提供技术支撑。To study the explosion effects in partial confined tunnel structure and perfect the calculation method of overpressure,a dimensionless function of air shock wave overpressure inside the tunnel and outside the portal during explosion in partial confined tunnel structure was established based on dimensional analysis method,and the similarity of physical quantities in scaled model tests of partial confined tunnel structure was illustrated.The geometric similarity of key parameters such as shock wave overpressure was verified by comparing the 1∶6 and 1∶4 test data.Based on the 1∶4 model implosion test data and numerical simulation results of multiple charges,basic form of the shock wave propagation function relationship was introduced,the engineering calculation methods for the overpressure distribution inside the logistics channel and outside the portal was established through data curve fitting.It is found that the engineering calculation methods inside the logistics channel and outside the portal are in relatively high agreement with the test data,with maximum relative errors of 9.5%and 10.6%,respectively.Engineering calculation methods can provide technical support for the structural design of partial confined tunnel structure and the calculation of safety distances.

关 键 词：泄压坑道式工房 量纲分析 压力分布规律 工程计算方法 

分 类 号：O383.1[理学—流体力学]