| 超深基坑的钢筋混凝土支撑爆破拆除 |
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| 引用本文： | 武大伟,李胡生,严平.超深基坑的钢筋混凝土支撑爆破拆除[J].工业建筑,2012(Z1):601-603. |
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| 作者姓名： | 武大伟 李胡生 严平 |
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| 作者单位： | 上海理工大学环境与建筑学院;上海应用技术学院土木建筑与安全工程学院 |
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| 摘 要： | 介绍上海中心超深基坑支撑爆破拆除工程,基坑中间圆形内基坑是顺做法,其外围基坑是逆作法,内基坑中的环形支撑和地墙,随着外基坑挖泥从上向下分层进行爆破拆除。拆除开始时基坑内结构已出地表,外基坑表层已做好,整个爆破基本处于室内状态。基于上述工程特点,探讨如何优化设计参数,采用了安全性最好的塑料导爆管复式毫秒微差起爆系统,采取了有效的灾害控制措施,取得了满意的爆破效果,可为同类结构的城市控制爆破提供经验。
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| 关 键 词： | 钢筋混凝土支撑 爆破拆除 灾害控制 |
BLASTING AND DEMOLITION OF REINFORCED CONCRETE BRACING IN SUPER DEEP FOUNDATION PIT |
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| Wu Dawei,Li Husheng,Yan Ping.BLASTING AND DEMOLITION OF REINFORCED CONCRETE BRACING IN SUPER DEEP FOUNDATION PIT[J].Industrial Construction,2012(Z1):601-603. |
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| Authors: | Wu Dawei Li Husheng Yan Ping |
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| Affiliation: | 1(1.School of Environment and Architecture,University of Shanghai for Science and Technology, Shanghai 200093,China;2.School of Civil Construction and Security Engineering Shanghai Institute of Technology,Shanghai 200235,China) |
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| Abstract: | The paper introduces the practice of demolishing reinforced concrete bracing of Shanghai Center.Foundation pit excavation in the middle circle is a normal practice,its periphery foundation pit is a practice of top-down construction,inside the pit in the ring support and the wall,with the dredging from outside the pit stratified blasting down.Removal of the start of the pit structure has a surface,the surface is well outside the pit,the blasting is in basic indoor state.Based on the above project,this paper explores how to optimize the design parameters,using a security best tube initiation system and employing effective disaster control measures,the blasting not only reaches a satisfied demolition effect,but also provides experience for controlled blasting of the city with similar structure. |
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| Keywords: | reinforced concrete bracing blasting demolition disaster control |
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