摘要
采用定向倾倒控制爆破技术成功拆除了在石嘴山热电厂内复杂环境下,高为55 m,建筑面积为30 000 m2的厂房。讨论了立柱炸高(高16.5 m)、爆破参数的选取、内外墙的预处理和安全防护措施,并通过合理地毫秒差分段延时起爆技术控制炸药单耗等措施,显著地降低了爆破振动和塌落振动。阐述了炮孔布置、单孔装药量等爆破参数。本次爆破爆堆的长度和高度小,取得了的良好的爆破效果。
A workshop in Shi Zui-shan thermal power plant needs demolition,with building area 30 000 m2 and 55 m in height.For the complex environment,the directional blasting demolition technology was applied.The choice of column burst height and blasting parameters,the pretreatment of the inner and outer wall,and the security precautions were discussed.The blasting and collapse vibration were reduced obviously by using millisecond delaying detonation technology.Meanwhile,the explosive consumption was controlled reasonably.Result shows that the muck pile scale and height were decreased and the desired effect of blasting was achieved.
出处
《爆破》
CSCD
北大核心
2013年第4期96-98,112,共4页
Blasting
关键词
石嘴山热电厂厂房
拆除爆破
预处理
定向倒塌
workshop in Shi Zui-shan thermal power plant
explosive demolition
pretreatment
directional dump
