青铜峡大坝深埋双金属标安装技术探讨  

Discussion on install technology of the bimetal deeply buries in Qingtongxia dam

作　　者：陈曙强 

机构地区：[1]黄河电力测试科技工程有限公司宁电分公司,宁夏青铜峡751601

出　　处：《宁夏工程技术》2008年第3期264-266,共3页Ningxia Engineering Technology

摘　　要：在大坝变形监测系统的改造和完善时,布置双金属标设施作为垂直位移工作基点,不仅可节约费用,而且可与真空激光系统相匹配,形成一套完善的大坝变形监测自动化系统,从而可以克服在水准网中,由于种种原因造成较大的观测误差.它的优点是能对温度所产生的标点变形进行修正,从而提高垂直位移观测精度,控制钻孔质量才能保证双金属标安装的准确性.结合青铜峡电站大坝监测系统的改造中双金属标的设计安装过程,探讨双金属标在安装过程中应该注意的一些问题.Not only saving but also matching to vacuum laser system when bimetal mark is used in vertical base point of displacement work in the reconstructing and perfecting process of dam distortion measure system, so it can constitute perfect dam distortion monitor automatic system, and avoid large observation error which comes from water level net. System advantage is that it can amend mark point distortion, thus, accurate observation of vertical displacement can be got. Bimetal mark install veracity depends on quality of digging hole. Some problems about bimetal mark installing are discussed which should pay more attention to in dam monitor system reconstructing work of Qingtongxia power station.

关 键 词：坝体监测 水准基点 双金属标 安装技术 

分 类 号：TV689.1[水利工程—水利水电工程]