Assembling type main variable foundation

Abstract

The invention relates to the technical field of main variable foundations, in particular to an assembling type main variable foundation provided for solving the problems that an existing main variable foundation is inconvenient to construct, long in period and poor in quality. The main variable foundation is divided into two components to be prefabricated in the factory, field mounting is achieved, construction efficiency is improved, construction quality is ensured, and the project cost is reduced. According to the adopted scheme, a bottom plate is integrally molded through a mold directly in a factory, a bending beam is integrally molded through a mold directly in the factory, the lower end of the bending beam is provided with a first inserting part and a second inserting part which extend downwards, a first sliding groove and a second sliding groove allowing the first inserting part and the second inserting part to be inserted in are formed in the bottom plate, the inserting parts at the lower end of the bending beam slide in the corresponding sliding grooves in the length direction of the sliding grooves, the inserting parts of the bending beam are inserted into the sliding grooves of the bottom plate, after the positions are adjusted, binding materials are poured in, and the inserting parts and the sliding grooves are connected in a fastened manner.

Description

technical field [0001] The invention belongs to the technical field of main transformer foundations, in particular to a field-assembleable main transformer foundation. Background technique [0002] In recent years, the State Grid Corporation of China has required the construction of intelligent, environmentally friendly, prefabricated substations, and required the construction of substations to have a unified module, factory prefabrication, and on-site assembly. At present, the 2016 edition of "General Design of Construction Drawings for Modular Construction of 35~110kV Smart Substations" and the main transformer foundation of the pilot prefabricated substations that have been in operation still use traditional cast-in-place reinforced concrete rigid foundations. That is, on-site formwork pouring. Because of the special shape of the foundation of the main transformer, the entire foundation construction process is cumbersome, the cycle is long and quality problems are prone ...

AI Technical Summary

Problems solved by technology

[0004] 1. The construction process is cumbersome and the construction period is long;

[0005] 2. The connection between the pier and the bottom plate is prone to pitting or swelling;

[0006] 3. It is difficult to ensure the flatness of the upper surface of the pier within 3mm;

[0007] 4. The size of the main transformer foundation is large, which belongs to mass concrete, and the heat of hydration is relatively large. Due to the existence of temperature stress, micro-cracks are prone to appear inside the foundation, which affects the strength and durability of the foundation

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