工程爆破

2016, v.22(05) 83-86

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框架结构联体大厦双折叠爆破拆除
Double folding blasting demolition of frame structure building

李伟;王群;胡军;高姗姗;
LI Wei;WANG Qun;HU Jun;GAO Shan-shan;Shenyang Should Blasting Engineering Co.,Ltd.;

摘要(Abstract):

介绍了联体框架结构大厦地处复杂环境的控制爆破拆除。在倒塌场地不足的情况下:第一,采用双切口折叠方法,缩短爆体的倒塌长度;第二,充分利用建筑物地下的自有空间,在底部采用高切口,在起爆瞬间使楼体下坐创造倒塌空间。利用同排立柱交叉起爆方式使切口内的支撑结构充分破坏,保证了大厦倒塌解体效果。开挖减振沟有效的防止楼体倒塌时产生的振动对周围保护物的破坏。通过研究分析,选取合理的爆破参数、精心施工与周密的防护措施,成功地拆除了联体框架结构大厦,取得了良好的爆破效果,可为同类工程提供借鉴。
The control blasting demolition of the frame structure of the building in the complex environment was introduced.Under the condition of insufficient collapse,firstly,double notches folding method was used,the collapsing length was shortened;secondly,the building own underground space was used fully;the high notch in the bottom was used to create the collapse space in initiation moment.By using the same row of columns and cross initiation mode,the support structure of the notch was destroyed fully,the collapse and disintegration of the building were ensured.The vibration ditch effectively prevented the collapsing of the building the vibration destruction of the surrounding protection.Through the research and analysis,the reasonable blasting parameters and careful construction and protection measures were selected,the body frame structure building was removed successfully.The good blasting effect was achieved,and it could provide a reference for similar projects.

关键词(KeyWords): 定向爆破;交叉起爆;爆破切口;框架结构;折叠爆破
Directional blasting;Cross initiation;Blasting notch;Frame structure;Folding blasting

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作者(Author): 李伟;王群;胡军;高姗姗;
LI Wei;WANG Qun;HU Jun;GAO Shan-shan;Shenyang Should Blasting Engineering Co.,Ltd.;

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