高寒地区水电站引水隧洞衬砌混凝土裂缝的控制  

Control of Concrete Cracks in Lining of Diversion Tunnel of Hydropower Station in Alpine Region

作　　者：武荣成 陈杰 WU Rong-cheng;CHEN Jie(POWERCHINA SINOHYDRO ENGINEERING BUREAU 14 CO.,LTD.,Kunming 650041,China)

机构地区：[1]中国水利水电第十四工程局有限公司,云南昆明650041

出　　处：《云南水力发电》2021年第10期36-40,共5页Yunnan Water Power

摘　　要：隧洞采用钻爆法开挖,混凝土衬砌后隧洞轮廓呈圆形,具有距离长、埋深大、地下水丰富、处于戈壁沙滩高寒地区等特点。在前期隧洞衬砌混凝土发现有裂缝,通过原因分析和对比试验后确定主要影响因素,采取相应控制措施后裂缝得到了有效控制。。The tunnel is excavated by drilling and blasting method.The contour of tunnel behind concrete lining is circular,featuring long distance,large buried depth,abundant groundwater and being located in the alpine region of Gobi Desert.Cracks are found in the lining concrete of the earlier tunnel.The main influencing factors are determined after cause analysis and comparative test,and the cracks are effectively controlled after taking corresponding control measures.

关 键 词：引水隧洞 衬砌混凝土 高寒地区 裂缝控制 

分 类 号：TV554[水利工程—水利水电工程]