摘要
介绍了集贤煤矿对竖井进行延深开采下一水平时存在的问题 ,说明了采用三点定圆的几何原理进行测量能求出井筒中心坐标 。
The problems existing in shaft extending mining lower level in Jixian Coal Mine are introduced.Adopting geometry rules of determining circle with three points to measure derive the shaft centre coordinate,the actual result is good.
出处
《煤炭技术》
CAS
2003年第3期70-71,共2页
Coal Technology