锦屏一级水电站岩锚梁施工技术  

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

作　　者：董学元 马丰云 

机构地区：[1]中国水利水电第十四工程局有限公司,昆明650041

出　　处：《隧道建设》2011年第2期235-239,245,共6页Tunnel Construction

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。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.

关 键 词：锦屏一级水电站 高地应力 低抗压强度 岩锚梁施工 

分 类 号：TV554[水利工程—水利水电工程] U455.4[建筑科学—桥梁与隧道工程]