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隧道建设(中英文) ›› 2011, Vol. 31 ›› Issue (2): 235-239.

• 施工技术 • 上一篇    下一篇

锦屏一级水电站岩锚梁施工技术

董学元,马丰云   

  1. 中国水利水电第十四工程局有限公司, 昆明 650041
  • 收稿日期:2010-10-22 修回日期:2011-01-27 出版日期:2011-04-20 发布日期:2011-05-11
  • 作者简介:董学元(1975—),男,云南罗平人,2006年毕业于昆明理工大学水利水电工程建筑专业,专科,工程师,从事水利水电工程施工现场管理工作。

Case Study on Construction Technology for Rock Anchored Beam of Jinping I Hydropower Station

DONG Hua-Yuan, MA Feng-Yun   

  1. Sinohydro Bureau 14 Co., Ltd., Kunming 650041, China
  • Received:2010-10-22 Revised:2011-01-27 Online:2011-04-20 Published:2011-05-11

摘要:

为解决高地应力、低抗压强度地质条件下岩锚梁开挖成型困难及岩锚梁混凝土浇筑后出现裂缝等技术难题,结合锦屏一级水电站岩锚梁施工技术,详细介绍了岩锚梁开挖方案、超前支护参数、高强锚杆施工工艺、混凝土浇筑时段及方法等。保证了锦屏一级水电站岩锚梁顺利、优质地完成。

关键词: 锦屏一级水电站, 高地应力, 低抗压强度, 岩锚梁施工

Abstract:

The excavation for the rock anchored beams under high ground stress and low compressive rock strength conditions is difficult. Furthermore, the rock anchored beams are prone to cracking after concrete casting. The excavation for the rock anchored beams, the parameters of advance support, the construction techniques for highstrength anchors and the concrete casting time and methods are presented in detail, with the construction of the rock anchored beam of Jinping I Hydropower Station as an example. In the end, successful construction has been achieved.

Key words: Jinping I Hydropower Station, high ground stress, low compressive strength, rock anchored beam, construction