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某158 m高混凝土烟囱位于某市繁华地段,因规划需要进行爆破拆除。结合爆破场地实际情况,采取南北双向三折控制爆破方案,确定了爆破切口的位置、爆破开口的参数设计、爆破弹药用量及爆破后的安全与防护等问题。经监测,爆破效果理想,烟囱按照设想的方向和范围倒塌,筒体完全破碎,折叠痕迹明显,对周围建筑及设施没有造成大的影响,采取此方案爆破拆除超过150m高的混凝土烟囱在国内乃至亚洲尚属首次,可为同类建筑的爆破拆除提供参考。
A 158-meter-high concrete chimney is located in the bustling area of a certain city and needs to be demolished for planning. Combining with the actual situation of blasting site, the bidirectional and three-fold controlled blasting scheme was adopted to determine the location of blasting cut, the parameter design of blasting opening, the amount of blasting ammunition and the safety and protection after blasting. The blasting effect is ideal. The chimney collapses in the direction and range envisaged. The chimney is completely crushed and the fold marks are obvious. There is no significant impact on the surrounding buildings and facilities. The blasting demolition of concrete chimneys over 150m in China and even in For the first time in Asia, it can provide a reference for the demolition of similar buildings.