煤矿长距离巷道贯通测量精度控制及测量技术研究

Research on Precision Control and Measurement Technology of Long Distance Roadway Through Measurement in Coal Mine

针对山西某矿31105综采工作面回采顺槽贯通测量路线长、测量难度大等问题,依据现场情况提出精度控制措施以及测量技术方案,并对测量方案贯通误差进行预计,得到水平以及高度方向预计误差分别为0.1774 m、0.093 m,误差值均在允许范围之内。现场应用后,贯通点位置水平重要方向及高程偏差分别为21 mm、10 mm,测量精度较高,表明采用的贯通测量方案可满足巷道长距离贯通需要。

In view of the long route and great difficulty in the measurement of the cut through in the 31105 fully mechanized mining face,the precision control measures and the measurement technical scheme are proposed according to the site conditions.The breakthrough error of the survey scheme is predicted,and the predicted errors in the horizontal and height directions are 0.1774 m and 0.093 m respectively,which are within the allowable range.After field application,the horizontal important direction and elevation deviation of the through point position are respectively 21 mm and 10 mm,with high measurement accuracy,indicating that the adopted through measurement scheme can meet the needs of roadway long distance through.