复杂环境下砖混结构楼群的爆破拆除

砖混结构楼房通常为中低层建筑，高宽比值不大，整体性较差。根据这种建筑物的结构特点，合理选择爆破时差和爆破参数，形成整体定向倒塌以及局部的定向倾倒趋势；采取有效措施，减少爆破个别飞散物、降低爆破震动和爆破粉尘；成功地爆破拆除了复杂环境下五座砖混结构宿舍楼。对类似爆破拆除工程具有参考价值。

BLASTING DEMOLITION OF BRICK-CONCRETE BUILDINGS UNDER THE COMPLEX ENVIRONMENT

The brick-concrete building is usually middle-low layer building and the proportion of its height with width is not big, and its bulk property is not good. According to the design feature of this building, the delay-time and parameter of demoletion was choosed reasonably, formed the overrall direction detection and the tendency of the partial direction detection; Taked the effective measures, reduced the blasting rock-fly, decreased the blasting vibration and blasting dust; The five brick-concrete buildings were demolished successfully under the complex enviroment. The experience can be referred by similar blasting demolition engineerings.