Calculation of strata movement angle based on the spatial relationship
Abstract：The important way of determining strata movement parameters is to establish a mining subsidence observation line.Considering that the ground observation line 3211 is not laid out strictly parallel to the trend or the tendency direction of the coal face,the angle of oblique critical deformation along the observation line layout direction is determined by the analysis of the observed data.According to the spatial relation between the angle of oblique critical deformation and the angle of critical deformation,the strata movement angle is calculated.The research shows that the calculation of the strata movement angle based on the spatial relationship is simple and practical,and can meet the practical requirements of mining subsidence engineering.
Keywords：mining subsidenceangle of oblique critical deformationangle of critical deformationspatial relationship
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 551-554 )