Application method of TG reinforced belts in high-backfill soil foundation of transformer substation

Abstract

The invention relates to the field of substation soft soil foundation treatment, in particular to an application method of TG reinforced belts in a substation high-backfill soil foundation. Two layersof TG reinforced belts are laid within the range of lime-soil replacement, the distance between the first layer of rib material and the top surface of a cushion layer is 0.9 m, the distance between the second layer of rib material and the top surface of the cushion layer is 2.1 m, the distance between the first layer of rib material and the second layer of rib material is 500 mm, and the two layers of TG reinforced belts are distributed in a square net shape. By means of the capabilities of stress diffusion, stress distribution adjustment, lateral confinement enhancement and the like of the reinforced cushion layer with high rigidity, lateral extrusion and upheaval of soft foundation soil are prevented, the purposes of reducing foundation settlement deformation and exerting foundation potential of a soft underlying layer in a natural state are achieved, the deformation of the foundation is effectively reduced, and the stability of the foundation is improved, so that the bearing capacity of the foundation can be better improved; and the technical problem of uneven settlement of structures in a high backfill area is solved.

Description

technical field [0001] The invention relates to the field of substation soft soil foundation treatment, in particular to an application method of a TG reinforcement strip in substation high backfill soil foundation. Background technique [0002] Lime-soil replacement is a common ground treatment method for substations. The material of the lime-soil cushion is lime and soil, and the volume ratio of lime and soil is generally 3:7 or 2:8. Lime soil foundation has simple construction technology and low cost. It is a widely used, economical and practical foundation reinforcement method, which is suitable for reinforcement and treatment of weak soil layers with a thickness of 1-3m. [0003] When encountering high backfill areas, some structures with shallow buried depths in substations, such as enclosure walls, field roads, cable trenches, equipment and other foundations, can theoretically be solved by using lime-soil cushion foundation treatment methods, but high backfill, Weak ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem of uneven settlement of structures in high backfill areas, the present invention provides an application method of TG reinforcement strips in high backfill foundations of substations

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