A grouting connection structure and grouting method based on combined box-type substation foundation

Abstract

The invention discloses a grouting connection structure based on a combined box-type substation foundation and a grouting method thereof. The structure includes an upper prefabricated wall, a connecting sleeve embedded in the lower end of the upper prefabricated wall, and a lower The connecting beam embedded in the upper end of the prefabricated wall and the lower prefabricated wall. The invention also discloses a grouting connection structure based on a combined box-type substation foundation and a grouting method thereof. The method includes the following steps: step 1: preparing materials; step Two: pairing; step three: add plugging; step four: preparation of grouting material; step five: grouting; step six: cleaning; the present invention improves the upper prefabricated wall and The butt joint installation efficiency of the lower prefabricated wall improves the construction efficiency of the entire box substation foundation; and through the connection structure of the connecting beam and the connecting sleeve, it improves the connection surface between the upper prefabricated wall and the lower prefabricated wall to form a strong enough Shear resistance.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a grouting connection structure based on a combined box-type substation foundation and a grouting method thereof. Background technique [0002] The box-type substation is the abbreviation of the box-type substation. The box-type substation is specifically a kind of high-voltage switchgear, distribution transformer and low-voltage power distribution device. The equipment, that is, the functions of transformer step-down and low-voltage power distribution, are organically combined, and installed in a moisture-proof, rust-proof, dust-proof, rodent-proof, fire-proof, anti-theft, heat-insulated, fully enclosed, and movable steel structure box, especially Applicable to the construction and transformation of urban power grids, the box-type substation is a brand-new substation emerging after the civil substation. [0003] The box substation foundation is the building fou...

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Problems solved by technology

[0003] The box substation foundation is the building foundation for installing the box substation. The box substation foundation provides good support for the installation of the box substation, and provides a suitable channel for the drainage and wiring of the box substation. The combined box substation foundation is composed of upper and lower sections. The prefabricated walls are combined butt joint, and the joint method is generally sleeve-type grouting connection. This construction method enables the box-type substation and the foundation to realize modular production and assembly, which improves the construction efficiency of the box-type substation foundation. However, the upper and lower sections of the prefabricated wall At the connection surface of the body, the connection structure is relatively scattered, which increases the difficulty of the butt joint of the upper and lower prefabricated walls. If the butt joint is not punctual, it is easy to bend and deform the connecting piece at the upper end of the lower prefabricated wall. The unilateral shear resistance at the connecting surface of the upper and lower prefabricated walls needs to be further improved

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