介绍岩滩水电站大坝倒垂线观测系统的倒垂线孔钻孔的孔斜控制、孔斜测量、孔斜纠偏等施工技术及廊道内遇长岩芯的处理方法。

This paper introduced construction technique of the inverted vertical line survey system, boring, hole slope measuring, slope correcting, etc. of the Yantan hydropower station.

youdao

介绍岩滩水电站大坝倒垂线观测系统的倒垂线孔钻孔的孔斜控制、孔斜测量、孔斜纠偏等施工技术及廊道内遇长岩芯的处理方法。

This paper introduced construction technique of the inverted vertical line survey system, boring, hole slope measuring, slope correcting, etc. of the Yantan hydropower station.

youdao