Study on the evolution of surrounding rock displacement in deep coal mine incline constructed by shield
YANG Yue
CHEN Xiaoguo
LUO Congshuang
Abstract：In order to improve the safety and stability of deep coal mine inclined shaft under shield construc-tion,according to the sections with different buried depth,numerical method and analytical method were used to study the development law of surrounding rock displacement of observation surface with the shield construc-tion process,and to reveal the characteristics of surrounding rock deformation of deep tunnel and the law affect-ed by excavation effect and support construction.The results show that the surrounding rock around the tunnel had been deformed before excavation,which increased rapidly at the moment of excavation,and then was grad-ually developed to a stable state.The greater the burial depth,the greater the final displacement of the sur-rounding rock,and the slower the development speed,resulting in a later earliest support timing.The support structure mainly improved the safety of tunnel by controlling the evolution speed of surrounding rock displace-ment effectively.The research results will provide theoretical guidance for shield construction technology and support design of deep inclined shaft.
Keywords：deep coal mine inclineshield constructionsurrounding rock displacementevolution laws
Publication Date：2025-08-30
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 52-58 )