基坑支撑梁轴向预埋孔爆破拆除技术Blasting Technology of Demolition of Pit-support Beams by Pre-buried Axial Pipes Blast Holes
叶建军,程大春,詹小杰,明军,肖衡林
摘要(Abstract):
为了克服支撑梁垂直长轴预埋孔爆破拆除技术中存在的炮孔过多、爆破器材消耗大、联网操作复杂、堵孔费时等缺点,提出了轴向预埋孔爆破拆除新技术。该技术的特征是:沿着梁长轴轴线预埋管道作为炮孔,配合采用水耦合装药降低深孔装药阻力并提高破碎效果;采取沙袋压孔、塑料薄膜水袋压梁降尘和切断梁侧面箍筋、遮盖架空塑料网等技术措施,实现了在城市复杂环境下低环境影响的爆破拆除作业。
关键词(KeyWords): 基坑支撑梁;轴向预埋炮孔;水耦合装药;爆破拆除
基金项目(Foundation): 国家重点研发计划项目(2016YFC0502208);; 湖北工业大学高层次人才科研启动金(BSQD14047)
作者(Author): 叶建军,程大春,詹小杰,明军,肖衡林
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