筒状结构填砂爆破的药量计算探讨  

DISCUSSION OF CHARGE CALCULATION OF FILLING SAND BLASTING TO TUBULAR STRUCTRUE

作　　者：曾赞文[1,2] 周听清[1] 姚哲芳[1] 任兴涛[1] 

机构地区：[1]中国科学技术大学近代力学系,合肥230026 [2]中国武警交通第七支队,河北秦皇岛066001

出　　处：《工程爆破》2009年第3期14-16,13,共4页Engineering Blasting

摘　　要：针对利用砂土代替水作为传压介质,对容器状构筑物、建筑物进行爆破拆除的新方法,重点对圆筒结构进行了药量计算分析。根据砂土中爆炸冲击波冲量和能量与结构破坏的能量准则,导出了单个集中药包的药量公式。采用本文提出的药量计算公式,对有代表性的工程实例进行了验算,得出的结果与实际相符,该计算公式可以作为填砂控制爆破拆除工程中药量确定的参考依据。For the filling sand blasting is a new method, using the sand instead of the water as pressure mass medium to backout container-building, the analysis to charge calculation of filling sand blasting to the cylindrical structure has been carried out in this paper. According to the energy principle, using the shock impulse and energy, the charge formula of a single concentration of charge was deduced. We have made a calculation on the representative project instances, adopting the calculating formula of charge quantity put forward in this thesis, and found that the result drawn was in conformity with reality. Therefore, determining the amount of charge of filling sand blasting using the charge calculating formula is appropriate.

关 键 词：筒状结构 填砂爆破 冲量 能量准则 药量计算 

分 类 号：TD235.1[矿业工程—矿井建设]