This paper discusses the factors affecting holeinclination measurement with horizontal liquid surface bore hole TV system.
提出水平液面式孔内电视系统测量孔斜的误差因素。
2
It can increase the holeinclination Angle range and drill elevation Angle holes, while setting the top drive power head and hole top plate toward the opposite direction.
动力头及孔口板调转方向，可直接钻凿仰孔，大大增加钻孔倾角范围。
3
Besides the diameter and inclination of pile foundation drill-hole, it can also be applied to other engineering, such as segmentation sinking, caisson sinking and halite mining by water-solution.