工程爆破

2009, v.15;No.v.15(03) 14-16+13

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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

曾赞文;周听清;姚哲芳;任兴涛;
ZENG Zan-wen1,2,ZHOU Ting-qing1,YAO Zhe-fang1,REN Xing-tao1(1.Department of Modern Mechanics,University of Science and Technology of China,Hefei 230026,China; 2.The Seventh Detachment,Traffic Armed Police of China,Qinhuangdao 066001,Hebei,China)

摘要(Abstract):

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(KeyWords): 筒状结构;填砂爆破;冲量;能量准则;药量计算
Tubular structure;Filling sand blasting;Impulse;Energy principle;Charge calculation

Abstract:

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作者(Authors): 曾赞文;周听清;姚哲芳;任兴涛;
ZENG Zan-wen1,2,ZHOU Ting-qing1,YAO Zhe-fang1,REN Xing-tao1(1.Department of Modern Mechanics,University of Science and Technology of China,Hefei 230026,China; 2.The Seventh Detachment,Traffic Armed Police of China,Qinhuangdao 066001,Hebei,China)

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