复杂环境下10层非对称框架结构楼房定向爆破拆除Directional Explosive Demolition of Ten-storey Dissymmetry Building in Complicated Situation
费鸿禄,刘志东,戴明颖
摘要(Abstract):
由于被拆10层楼房地处繁华区域,且结构坚固,立柱尺寸不一致,高跨比小不易倾倒,设计在1~4层布设切口,并选取较大炸高和半秒延期雷管,以有效降低爆堆高度,减小地面震动。立柱采用梅花形布孔,并通过试爆确定了合理的爆破参数。为防止楼房结构不对称而导致倒塌方向的偏转,大楼东侧第8纵列所有立柱雷管均在原有网路基础上提高一个段位。爆破后达到了设计目标。
关键词(KeyWords): 楼房爆破拆除;非对称框架;定向爆破;爆破参数;安全防护
基金项目(Foundation): 辽宁省高等学校优秀人才支持计划(2009R32)
作者(Author): 费鸿禄,刘志东,戴明颖
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