赵根;张文煊;李永池;
ZHAO Gen~(1,2),ZHANG Wen-xuan~1,LI Yong-chi~1(1.University of Science and Technology of China,Hefei 230000,China;2.Key Laboratory of Geotechnical Mechanics and Engineering of the Ministry of Water Resources,Wuhan 430010,China)

• 1:中国科学技术大学
• 2:中国科学技术大学
• 3:中国科学技术大学 合肥230000
• 4:水利部岩土力学与工程重点实验室

摘要(Abstract)：

通过一座钢筋混凝土烟囱双向折叠拆除爆破实例的DDA模拟计算表明,在倾倒过程和爆破效果等方面,模拟计算结果与实际爆破具有很好的相似性。证明了运用DDA程序对钢筋混凝土烟囱定向爆破参数与爆破效果的关系进行数值模拟,可得到比较合理的爆破参数,从而可进行爆破效果的爆前预测,对爆破设计、施工和安全防护等具有指导意义。
In this paper numerical simulation of blasting with the aid of DDA software was carried out by taking an example of bidirectional folded blasting demolition of a reinforced concrete chimney.The research showed that the simulative result accorded with the practical situation in terms of the blasting effect and collapsing course,showing that reasonable blasting parameters could be obtained by the use of DDA numerical simulation of the correlation of blasting parameters and effect in the directional blasting of reinforced concrete chimney.The resulting simulation could be used to predict and guide blasting in terms the blasting design,operation and safety protection.

关键词(KeyWords)： DDA;数值模拟;钢筋混凝土烟囱;折叠爆破;倾倒过程
DDA;Numerical simulation;Reinforced concrete chimney;Folded blasting;Collapsing process

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 赵根;张文煊;李永池;
ZHAO Gen~(1,2),ZHANG Wen-xuan~1,LI Yong-chi~1(1.University of Science and Technology of China,Hefei 230000,China;2.Key Laboratory of Geotechnical Mechanics and Engineering of the Ministry of Water Resources,Wuhan 430010,China)

参考文献(References)：

• (1)金骥良.高层建(构)筑物整体定向爆破倒塌的切口参数[J].工程爆破,2003,9(1):1-6.
• (2)潘常洪,鹿智勇.鞍钢第二发电厂120m钢筋混凝土烟囱爆破拆除(J).工程爆破,2002,8(2):20-23.
• (3)陈德志,丁帮勤.苛刻条件下100m高钢筋混凝土烟囱定向爆破与震动测试[J].工程爆破,2003,9(3):33-35.
• (4)王斌,梁开水,张建华.高耸建筑物爆破切口参数的数值优化[J].爆破,2004,21(2):12-16.
• (5)孙金山,卢文波,谢先启.钢筋混凝土烟囱拆除爆破双向折叠定向倾倒方案关键技术探讨[J].爆破,2004,21(2):6-9.
• (6)李本平.烟囱定向爆破仿真模拟[J].爆破,2003,20(3):11-13.
• (7)谢先启,贾永胜,罗启军,等.双向折叠爆破拆除100m钢筋砼烟囱[J].爆破,2004,21(3):49-51.