• 中国科学引文数据库(CSCD)来源期刊
  • 中文核心期刊中文科技核心期刊
  • Scopus RCCSE中国核心学术期刊
  • 美国EBSCO数据库 俄罗斯《文摘杂志》
  • 《日本科学技术振兴机构数据库(中国)》
二维码

隧道建设(中英文) ›› 2015, Vol. 35 ›› Issue (S2): 143-146.DOI: 10.3973/j.issn.1672-741X.2015.S2.025

• 施工技术 • 上一篇    下一篇

地铁隧道节能环保水压爆破施工技术

王威   

  1. (北京中铁隧建筑有限公司, 北京 100022)
  • 收稿日期:2015-05-29 修回日期:2015-09-25 出版日期:2015-12-15 发布日期:2015-12-24
  • 作者简介:王威(1985—),男,四川新津人,2015年毕业于华南理工大学(函授),土木工程专业,本科,助理工程师,现从事技术管理工作。

Construction Technologies for Waterpressure Blasting Used in  Energy Conservation and Environment Protection of Metro Tunnel

WANG Wei   

  1. (Beijing Construction Co., Ltd. of China Railway Tunnel Group, Beijing 100022, China)
  • Received:2015-05-29 Revised:2015-09-25 Online:2015-12-15 Published:2015-12-24

摘要:

为了解决常规爆破施工炸药利用率低、隧道内有害气体含量大、粉尘浓度大等问题,对重庆轨道交通五号线5107标石桥铺站—石新路站区间采用水压爆破施工技术的方法进行论述。水压爆破是利用水的不可压缩性质,能量传播损失小,炸药爆炸冲击波瞬间通过水传播到容器壁使其位移,并产生反射作用形成二次加载,加剧炮眼壁的破坏,遂使其均匀解体破碎。结合现场振速监测、洞内气体检测数据、通风时间统计,得出: 1)水压爆破施工在节能环保方面有着“两改善、一明显”的作用,主要表现在改善炸药利用率、改善隧道有害气体含量,炮眼中水的雾化作用能明显减少粉尘和强制通风时间; 2)通过对比常规爆破和水压爆破的费用,水压爆破有节约成本、控制超欠挖等优点。

关键词: 地铁隧道, 节能环保, 水压爆破

Abstract:

The conventional blasting technology has many disadvantages, such as utilization ratio of conventional blasting explosive, large content of harmful gas in the tunnel, and large density of dust. In this paper, the waterpressure blasting method used in the construction of Shiqiaopu StationShixinlu Station section of 5107 Bid Section on No. 5 Line of Chongqing railway transit is discussed. The site vibration monitoring data, gas monitoring data and ventilation time data collected are presented. The conclusions drawn are as follows: 1) The waterpressure blasting method has many advantages, such as improving the utilization ration of explosive and reducing the harmful gas content, dust and ventilation time, in term of energy conservation and environment protection. 2) The cost of the waterpressure blasting is less than that of conventional blasting, and the overbreak/shortbreak control effect of the waterpressure blasting is higher than that of conventional blasting.

Key words: Metro tunnel, energy conservation and environment protection, waterpressure blasting

中图分类号: