刘文广;陶顺伯;李清明;
LIU Wen-guang1,TAO Shun-bo2,LI Qing-ming1(1.Shanghai Fire Technology Engineering Ltd,Shanghai 200081,China;2.Shanghai Tongji Blasting Engineering Ltd,Shanghai 200092,China)

• 1:上海消防技术工程有限公司
• 2:上海同济爆破工程有限公司

摘要(Abstract)：

介绍了土压平衡盾构在穿越预留的混凝土连续墙施工中,应用钻孔爆破帮助盾构快速通过的施工实例。阐述了爆破参数、爆破网路的设计与施工以及爆破安全等技术问题。采用精密钻孔,保证了炮孔质量,采用孔内分层装药和延时起爆,减小了爆破振动,并对爆破振动及爆后混凝土粒径进行了控制。钻孔爆破大大缩短了盾构穿越时间,取得良好效果。
With the help of drilling blasting method,the pressurized balance TBM could quickly cut across the reserved concrete diaphragm walls.There was an introduction about this construction work.The design of blasting network and blasting parameters,construction techniques,blasting safety and other technical matters were described.Blasting quality was ensured by way of precise drilling.Sectional charge and delayed initiation program were used within hole which reduced blasting vibration and controlled particle diameters of concrete after blasting.With the help of hole-blasting method,crossing time was greatly cut short and favorable blasting effects were achieved.

关键词(KeyWords)： 地下连续墙;钻孔爆破;盾构;振动测试;爆破效果
Underground diaphragm wall;Drilling blasting;TBM(Tunnel Boring Machine); Vibration measurement;Blasting effects

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 刘文广;陶顺伯;李清明;
LIU Wen-guang1,TAO Shun-bo2,LI Qing-ming1(1.Shanghai Fire Technology Engineering Ltd,Shanghai 200081,China;2.Shanghai Tongji Blasting Engineering Ltd,Shanghai 200092,China)

参考文献(References)：

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• (2)袁野,周琦.地下爆破药量计算公式简评[J].工程爆破,2001,7(4):36-39.
• (3)郭涛,徐全军,杨旭,等.钢筋混凝土地下人防工事爆破拆除[J].工程爆破,2004,10(1):35-37.