Multiple Linear Regression Analysis of Controllable Influence Factors on Falling Height of Roof in Face Ar ea
SHI Hao-yu
TIAN Duo
Abstract：For studying the influence of controllable factors , such as mining height , tip-to-face distance , advance speed etc , on falling height of the roof in face area , this paper designed 9 simulation numerical mod-els by the orthogonal test , calculated the falling height when controllable influence factors changed by UDEC , analyzed multiple linear regression of several parameters by SPSS , abstained multiple linear regression equa-tion of falling height of the roof in face area , the test results of regression coefficient show that is significant re-lation.The result show that tip -to-face distance is mainly Influence factor , the value increased 1 m, falling height increased 0.688 m;mining height is secondly factor , the value increased 1 m, falling height increased 0.1 m;falling height is decreasing with the increasing of advance speed and the support resistance , but its in-fluence coefficient is less than 0.1.
Keywords：Roof in Face AreaFalling HeightControllable Influence FactorsMultiple Linear Regression
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 21-24 )