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Some Experience about Thick Wall Brick Chimney Blasting Demolition
Author(s): 
Pages: 87-90
Year: Issue:  2
Journal: Blasting

Keyword:  厚壁烟囱定向爆破炸药单耗震动控制;
Abstract: 结合工程实例,说明了厚壁砖结构烟囱爆破时,为了定向准确,爆破缺口稍大于1/2即可,此时,烟囱倒塌过程一般不会发生后坐、下坐现象.为使砖烟囱壁爆体充分破碎,炸药单耗取值应该在1000g/m3左右,不宜太小.采用双层建筑钢网,用铁丝扎紧可以严密防止烟囱爆破飞石.
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