Single-core cable directly-buried laying structure

The utility model provides a single-core cable directly-buried laying structure. The single-core cable directly-buried laying structure comprises a cable trough, a concrete cushion layer, a cover plate, coarse sand and backfill soil, the single-core cable is laid on the cable trough; the cable trough is placed on the concrete cushion layer; the cover plate is placed on the cable trough, and coarse sand is filled between the cover plate and the bottom of the cable trough; backfill soil is filled between the cable trough cover plate and the ground; and positioning grooves for the A phase, the B phase and the C phase of the single-core cable are respectively arranged in the cable grooves. According to the utility model, the three-phase symmetry of the single-core cable can be ensured, even if the upper ground is subjected to gravity rolling or cable local deformation caused by thermal expansion and cold contraction, the change of the relative position of the three single-core cables cannot be caused, and the thr