DG水电站厂房机组安装间洞口锚索施工技术  

Construction Technology of Anchor Cable at the Erection Bay Entrance of the Underground Powerhouse in DG Hydropower Station

作　　者：翁锐[1] 梁俊霞 WENG Rui;LIANG Junxia(Sinohydro Bureau 7 Chengdu Hydropower Construction Engineering Co.,Ltd.,Chengdu 611130,China)

机构地区：[1]中国水利水电第七工程局成都水电建设工程有限公司,四川成都611130

出　　处：《水电与新能源》2022年第12期58-62,共5页Hydropower and New Energy

摘　　要：随着西部大开发的稳步推进,为实现国家“碳中和”及“碳达峰”目标的要求,青藏高原地区的水电项目相继开发遇到了不少的挑战。以正在开发的DG水电站为例,在高寒高海拔、地质条件复杂的地下厂房冬季施工中,其窑洞式洞口四周安装锚索的施工就遇到成孔难、灌浆难等问题。通过采取跟管成孔、对浆液加热等措施有效解决了锚索施工难题,为高寒、高海拔、地质条件复杂地区大跨度地下厂房开挖中预应力锚索施工积累了成功经验。With the steady progress of the western development,and following the requirements of the national carbon neutrality and carbon peaking goals,hydropower projects in Qinghai-Xizang Plateau area have been developed in succession,which have also met many challenges.In the winter construction of DG Hydropower Station project,the anchor cable construction around the erection bay entrance of the underground powerhouse is of difficulties in the hole forming and grouting because of the high altitude and cold climate,and complex geological conditions.Engineering measures such as the hole forming with pipe and slurry heating are adopted,which effectively solve the problems.It provides successful experience for the pre-stressed anchor cable construction in excavation of large span underground powerhouse in high altitude and cold area with complex geological conditions.

关 键 词：DG水电站 高寒高海拔 锚索施工 锚索注浆 

分 类 号：TV731[水利工程—水利水电工程]