Application of Portable Laser Pointing Instrument for Range and Angle Measuring in Sketch of Coal Mine Roadway Excavation
There are errors and complicated operation in measuring coal mine excavation data by conventional method.Taking the roadway excavation project of 1360 working face of A Mine as an example,considering the characteristics of the coal mine roadway section shape and specifications,the position of mechanical equipment in the roadway,transportation conditions and convenient application,it was proposed to use the portable laser pointing instrument for range and angle measuring to measure the data in the coal mine roadway excavation.The application of the instrument can obtain accurate data and provide data basis for the subsequent coal mine sketch.Reasonably install and debug the portable laser pointing instrument for range and angle measuring,and draw the installation sections and plans.After the calibration of the roadway waist line,a detection was carried out at every 100 m forward of the roadway to determine whether the laser beam was in a reasonable orientation and slope orientation of roadway waist line to ensure that the error was within the specified range,so as to improve the accuracy of the design;when calibrating the roadway center line measurement,at least 3 center line points was set and the laser beam angle was reasonably adjusted to get the best measurement data points;finally the sketch of coal mine excavation was completed based on the above measurement data.The application of portable laser pointing instrument for range and angle measuring in coal mine excavation sketch has great advantages.
万方数据
维普
