Analytical Prediction of Tunnel Deformation Beneath an Inclined Plane: Complex Potential Analysis

When excavating a tunnel, the stresses are distributed asymmetrically along tunnel cross-section. Other factors, particularly slope friction force and excavation speed, can also contribute to deformation displacement of tunnel. Despite this, several authors have used complex potential method predict ground surrounding However, their applicability response caused by asymmetric stress distribution around wall is analysed in this context. This paper, therefore, proposes an approximate solution on cross-section deformation. The based analytically numerically two variables called “complex functions” for Laurent series expansion redistribution boundary conditions. Data from Qijiazhuang case justify proposed analytical solutions. essential guide analyzing deformations geological conditions structures, such as steeper slopes.