双标倒垂孔的施工与控制  

Construction and control of bimetal mark reversed pendulum holes

作　　者：徐伟 

机构地区：[1]黄河万家寨水利枢纽有限公,山西偏关036412

出　　处：《西北水电》2007年第1期55-57,69,共4页Northwest Hydropower

摘　　要：介绍了目前比较成功的倒垂孔钻孔、钻孔偏斜、保护管安装、双金属标的埋设及安装等施工方法和控制措施。Embedment and installation of bimetal mark reversed pendulum were one of difficult points in dam monitoring system. This paper introduces successful construction method and control measure currently used for holedrill, borehole deviation, protection tube, and embedment and installation of bimetal mark.

关 键 词：倒垂孔 双金属标 施工 偏斜 

分 类 号：TV642.32[水利工程—水利水电工程]