工程爆破

2001, (01) 57-61+53

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城市浅埋隧道开挖减震控制爆破技术
VIBRATION-REDUCING CONTROLLED BLASTING TECHNOLOGY FOR EXCAVATION OF URBAN SHALLOW TUNNEL

周春锋
ZHOU Chun feng (Research & Design Institute of Railway Construction, Beijing 102600, China)

摘要(Abstract):

在建筑物密集且部分建筑物抗震性能差的城市繁华地带的地下 ,进行浅埋隧道爆破开挖施工 ,只有采用减震控制爆破技术才能使地表建筑物免受爆破震动的危害。笔者结合工程实例对城市浅埋隧道减震控制爆破的技术要点 ,如微台阶施工法、减震掏槽形式、炮孔线形布置等进行了阐述。
Only by adopting vibration reducing controlled blasting technology, can the buildings with poor vibration resistance in busy urban area avoid to be damaged by blasting vibration from excavation of shallow tunnels underground. In the light of an engineering example, some key technologies such as mini bench constructing method, vibration reducing cutting and linear blast hole layout were expounded in this paper.

关键词(KeyWords): 城市地下铁道;浅埋隧道开挖;减震爆破
Urban subway; Excavation of shallow tunnel; Vibration reducing blasting

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 周春锋
ZHOU Chun feng (Research & Design Institute of Railway Construction, Beijing 102600, China)

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