摘要
介绍了江西南昌发电厂210 m高钢筋混凝土烟囱定向控制爆破拆除的成功经验。着重介绍了切断圈梁的预处理措施、爆破切口形状、尺寸及开凿工艺、爆破参数、电子数码雷管起爆网路、爆破安全技术及爆破效果等,并对爆破振动进行测试和分析。提出了开凿拱形超大导向窗和防飞溅减振降尘综合防护方法。特别是电子数码雷管首次在高达210 m高的构筑物爆破拆除中的应用,提高了延期精度,同时具备良好的抗杂电的效果,保证了爆破工作能够在发电厂中安全实施。在未来大规模、高水平的复杂工程爆破中将具有很好的应用前景。
The project of directional controlled demolition blasting of 210m high reinforced concrete chimney is introduced. Some methods were, such as emphatically introduced, the pretreatment measures, shape and size of blas- ting cut, blasting parameters, blasting network based on digital electronic detonator, safety technical measures and blasting effect. Especially the electronic digital detonator was the first time in high amounts to high structure demoli- tion blasting. The digital electronic detonator applied good resistance to stray electrical effect, ensured the blasting work in the power plant security implementation, which improved the accuracy of extension. Can be used for reference for the similar projects.
出处
《爆破》
CSCD
北大核心
2012年第2期72-75,79,共5页
Blasting
关键词
烟囱
定向爆破
电子数码雷管
综合防护
Chimney
directional demolition blast
digital electrical detenalon
compound protect
