180m高的钢筋混凝土烟囱分次定向爆破拆除

为了顺利爆破拆除180m高钢筋混凝土烟囱,受倒塌空间有限制约,制定了分2次定向爆破的方案。分别在+90m和+0.0m处开爆破切口,采取先上部切口爆破,后实施下部爆破的顺序,合理选取各项爆破参数,制定了有效的安全防护措施,顺利、圆满地完成了烟囱爆破拆除工程,并达到了预期的爆破效果,验证了高耸建筑物分次爆破拆除的可行性。

Demolition of 180m high reinforced concrete chimney by directional blasting

In order to successfully blast the 180 m high reinforced concrete chimney, according to the limited collapse space, a two-stage directional blasting scheme was developed. The blasting notch at +90 m and +0.0 m respectively, take the first upper notch blasting, and then carry out the order of lower notch blasting. Reasonable selection various blasting parameters,effective safety protection measures were formulated, and the chimney blasting demolition project was successfully and satisfactorily completed. And the expected blasting effect was achieved, and the feasibility of the blasting demolition of highrise buildings was verified.