Three-dimensional prediction method for surface deformation induced by tunnel water and sand leakage based on the random medium theory

Abstract

The present invention relates to the technical field of tunnel construction, specifically a three-dimensional prediction method for surface deformation induced by tunnel water and sand leakage based on the random medium theory. By establishing a reasonable coordinate system, deriving displacement expressions in combination with relevant theories, integrating different stratum parameters to obtain a comprehensive influence angle, clarifying the shape of the soil loss area and determining key parameters, simplifying complex integral calculations, correlating relevant formulas to reduce the difficulty of parameter acquisition, the present invention finally forms an accurate surface settlement expression. It realizes the systematic prediction of surface deformation induced by tunnel water and sand leakage, provides scientific guidance for disaster control, and avoids improper measures from exacerbating disaster impacts.