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隧道建设(中英文) ›› 2010, Vol. 30 ›› Issue (S1): 376-382.

• 施工技术 • 上一篇    下一篇

浅埋隧道下穿城镇减震控制爆破施工技术

张志和   

  1. 中铁隧道集团一处有限公司,重庆401121
  • 修回日期:2010-06-25 出版日期:2010-08-14 发布日期:2010-08-25
  • 作者简介:张志和( 1976—),男,河南周口人,2000年毕业于山东科技大学采矿工程专业,本科,工程师,现从事隧道工程研究工作。

Vibrationreducing Blasting Technology Applied in Construction
of Shallow Tunnels Passing underneath Town Areas

ZHANG  Zhi-He   

  1. The 1st Engineering Co., Ltd. of China Railway Tunnel Group, Chongqing 401121
  • Revised:2010-06-25 Online:2010-08-14 Published:2010-08-25

摘要:

 隧道浅埋段下穿城镇如何在不影响地表居民生活、地表建筑物安全的前提下快速、高效施工,控制爆破震动是施工关键。现结合某浅埋隧道下穿城镇段减震控制爆破的成功应用及所取得的施工经验,详细论述采取小导洞爆破超前+扩挖层预留光爆层分区爆破的施工方法及组织,并通过爆破震动监测对施工中的控制爆破方案及减震爆破效果进行总结,以期对类似工程的施工提供借鉴。

关键词: 浅埋隧道, 下穿城镇, 超前小导坑, 减震爆破, 震速监测

Abstract:

The key to rapid tunneling underneath urban areas without influencing the living of the residents and the stability of the surface buildings is to control the vibration during the blasting. The successful application of vibrationreducing blasting in a shallow tunnel passing underneath town area and the construction experience are given in this paper. The construction method of pilot tunnel combined with smooth blasting in preserved strata is presented in detail. The controlledblasting plan and the vibrationreducing effect are evaluated by means of blasting vibration monitoring. This paper may provide reference for the construction of similar projects in the future.

Key words: shallow tunnel, tunneling underneath urban area, pilot tunnel, vibrationreducing blasting, vibration monitoring