距离交会法标定巷道中线的水平角误差分析

Horizontal Angle Error Analysis in Marking the Direction of Laneway with Distance Intersection Method

介绍了距离交会法标定巷道开掘方向的工作原理,重点对该标定法中产生的水平误差进行了分析。使用该方法计算,巷道掘进6m范围内,当指向角α=30°,水平角误差σ偏离5°时,掘进的巷道中线偏离值M=0.056m,仍控制在规定误差范围内,满足巷道工程的施工精度要求。

The principle of distance intersection method used in marking direction of laneway is described, and the influence of horizontal angle error is analyzed in this paper. Using distance intersection method, when laneway is grubbed forward in the range of 6 m and the angle between intended laneway ot is 30° ,the horizontal angle error σ is 5°, and then the midline of laneway departed intended point M is 0. 056 m ,which is controlled in the range of specification error.