Pre-disintegration soft rock embankment grouting anti-seepage lifting structure and construction method thereof

The invention discloses a pre-disintegration soft rock embankment grouting anti-seepage lifting structure and a construction method thereof.The grouting anti-seepage lifting structure comprises a single graded broken stone layer, a soft rock filler layer and a clay layer, the soft rock filler layer is laid above the single graded broken stone layer in a layered mode, and a lifting layer is laid in the soft rock filler layer of a certain layer below a roadbed working area; the lifting layer comprises a plurality of second longitudinal reserved pouring pipe grooves and transverse reserved pouring pipe grooves, the transverse reserved pouring pipe grooves and the second longitudinal reserved pouring pipe grooves are perpendicular to each other and are communicated with each other, and pouring pipes are embedded in the transverse reserved pouring pipe grooves and the second longitudinal reserved pouring pipe grooves. All the pouring pipes in the lifting layer are wrapped in the double-layer geomembrane; the clay