竖井贯通放样与精度检验

Vertical well through lofting and accuracy inspection

立井贯通是指生产竖井在延伸方向上的贯通测量,其主要误差来源于井下导线测量引起的上下井筒之间井筒中心或井筒四角线的位置偏差,而此时贯通测量的竖向误差已是次要误差,一般不需要进行过多的考虑。

Vertical well completion refers to the completion measurement of production shaft in the extension direction. The main error is the deviation of the location of the shaft center or the four-angle line between the shaft and the shaft caused by the underground traverse measurement. At this time, vertical error of completion measurement is the secondary error, which generally does not require too much consideration.