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对高 45 m、1 3层 ,与要保护的楼房连为一体 ,由弧形框架结构的日光室、筒状剪力墙结构的电梯井、烟囱组成的框剪结构连体楼房实施了定向爆破拆除。该爆破工程采用多段微差起爆 ,时间差、爆破切口高度差相结合的定向倾倒措施。
The directional blasting of a 45-meter-high, 13-story building connected with the building to be protected was implemented by a frame-shear structure connected building consisting of a sun-shaped chamber with a sun-shaped frame structure, an elevator shaft with a cylindrical shear wall structure, and a chimney. tear down. The blasting project adopts multi-stage differential detonation, and the time-difference and blasting incision height difference combined with the directional dumping measure.