滇中引水工程大理Ⅱ段隧洞断面监测成果分析评价  

Analysis and Evaluation on Monitoring Results of Tunnel in Dali Section Ⅱ of Yunnan Water Diversion Project

作　　者：罗中权 张学良 王丽娟 LUO Zhong-quan;ZHANG Xue-liang;WANG Li-juan(Power China Kunming Engineering Corporation Limited,Kunming 650051,China)

机构地区：[1]中国电建集团昆明勘测设计研究院有限公司,云南昆明650051

出　　处：《云南水力发电》2022年第6期57-61,共5页Yunnan Water Power

摘　　要：目前,国内对隧洞开挖工程遇到渗水、软岩变形等问题,加强施工期监测工作尤为重要。以滇中引水大理Ⅱ段DLⅡ46+910监测断面为实例,利用多点位移计、锚杆应力计、钢筋计等监测措施对隧洞进行监测并对比不同的监测方法和结果,进而应证隧洞的开挖支护效果。最终,围岩变形、锚杆应力、钢筋应力监测监测成果表明DLⅡ46+910监测断面施工支护措施是合适的。At present, problems such as seepage and deformation of soft rock are often encountered in domestic tunnel excavation works. It is particularly important to strengthen monitoring during construction period. Taking Dali Section Ⅱ of Diversion Project in Yunnan Province as an example, this paper uses monitoring measures such as multi-point displacement meter, anchor stress meter and reinforcement meter to monitor the tunnel,compares different monitoring methods and results, and verifies the excavation and support effect of the tunnel.Finally, monitoring results of surrounding rock deformation, anchor stress and reinforcement stress indicate that construction support measures in DLⅡ46+910 monitoring section are appropriate.

关 键 词：滇中引水工程 隧洞断面监测 多点位移计 锚杆应力计 钢筋计 

分 类 号：TV672.2[水利工程—水利水电工程] TV698.11