The geological survey information of coalmine is concentrated reflection of "Digital Coal Mine", which is very important basis of the manufacture and management of coal mine.
煤矿地测信息是煤矿地质测量工作的集中反映，是煤矿生产和管理工作的重要依据。
2
The error prediction and measure method of holing survey are introduced in detail by holing survey to the No. 2 Well of Chaochuan CoalMine.
通过对朝川矿二井的贯通测量，详细介绍了贯通测量的误差预计以及贯通测量的施测方法。
3
At last, the effectiveness of using integrated geophysical methods to the coalmine gob area survey with specific engineering exploration is proved.