工程爆破

2012, v.18;No.68(02) 69-71+53

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人和大桥爆破拆除设计与施工
DESIGN AND CONSTRUCTION OF DEMOLISHING RENHE BRIDGE BY BLASTING

胡伟;
HU Wei(Guangdong Blasting Engineering Co.,Ltd.,Guangzhou 510660,China)

摘要(Abstract):

介绍了在不截断河流的情况下对浆砌石结构人和大桥进行爆破拆除,详述了爆点的选择、爆破参数的选取。桥梁爆破落水后充分解体,有效地减少了水下二次破碎的工作量,同时采取了安全防护措施,很好地控制了爆破振动和飞石等有害效应,为类似工程积累了实践经验。
Successful blasting demolition of Renhe bridge with stone masonry structure was introduced without blocking river.Location of blasting points and selection of blasting parameters were discussed in detail.The bridge fully collapsed into pieces after it was blasted,which effectively reduced the second-time crushing rocks work under the water.At the meantime,the security measures were adopted,which effectively controlled bad affect such as blasting and collapse vibration and blasting fly-rock.The project provides practical experience for similar projects in the future.

关键词(KeyWords): 大桥;爆破拆除;设计与施工;安全防护
Bridge;Blasting demolition;Design and construction;Safe protection

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作者(Author): 胡伟;
HU Wei(Guangdong Blasting Engineering Co.,Ltd.,Guangzhou 510660,China)

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