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隧道建设(中英文) ›› 2012, Vol. 32 ›› Issue (增刊2): 136-140.DOI: 10.3973/j.issn.1672-741X.2012.z2.027

• 施工技术 • 上一篇    下一篇

硬岩深大基坑围护桩快速成孔施工

祝振生   

  1. (中铁隧道集团三处有限公司, 广东 深圳 518052)
  • 收稿日期:2012-07-26 修回日期:2012-09-10 出版日期:2012-12-20 发布日期:2013-02-19
  • 作者简介:祝振生(1979—),男,广西昭平人,2002年毕业于南京林业大学交通土建专业,本科,工程师,现从事技术管理工作。

Rapid Drilling of Retaining pile Hole for Deep Pit in Hard Rock

ZHU Zhensheng   

  1. (The 3rd Engineering Company of China Railway Tunnel Group, Shenzhen 518052, Guangdong, China)
  • Received:2012-07-26 Revised:2012-09-10 Online:2012-12-20 Published:2013-02-19

摘要:

为保证硬岩深大基坑进行围护结构旋挖桩快速成孔施工,采用潜孔钻机与旋挖钻机相结合,先进行桩体范围内的岩层破碎,形成松散桩体岩层,然后再采用旋挖钻机进行成孔,不但大大加快成桩速度,也减少旋挖钻机的磨损,降低能耗,从而取得良好的经济、社会效益。

关键词: 硬岩, 深大基坑围护结构, 旋挖桩

Abstract:

According to the construction experiences of rotatory drill pile for the retaining structure of the pit at Tiyugongyuan station on No. line of Changsha metro, the associated application of rotatory drill and downthehole drill in the construction of retaining structure for deep metro pit is presented in this paper.

Key words: hard rock, retaining structure of deep pit, rotatory drilling pile