Reserve embedded postposition construction method of switch gear room of transformer substation

Abstract

A reserve embedded postposition construction method of a switch gear room of a transformer substation mainly comprises the following steps of construction preparation of a base layer, levelling, floor maintenance and placement of embedded pieces. By the reserve embedded postposition construction method of the switch gear room of the transformer substation, a construction technology, which is synchronous to main construction, of traditional reserve embedded construction of the switch gear room of the transformer substation and a cable interlayer is modified into reserve embedded postposition hole and groove forming. The technology of embedded iron pieces constructed by a postposition method is simple, construction positioning is accurate, elevation is controlled in place, any objects projected out of a plate surface do not exist, operation is easy in a construction process, elevation of the plate surface is also easy to control, and time and labor cost are saved. During mounting of reserved holes, form boards for forming the holes are not required, labor and time are saved, errors are not easy to cause during positioning, and a plane view size cannot deform easily. The whole technology is attractive, the time is saved, the cost is reduced, later hole blocking workload is reduced, and the number of hole cover plates is reduced.

Description

technical field [0001] The invention relates to a construction method, in particular to a pre-embedded post-installation construction method for a substation switch room. Background technique [0002] In the construction process of the substation switch room, it generally involves three steps, the construction of the structural layer, the installation of the embedded iron parts and the reservation of holes. [0003] The conventional method of ground construction is to do the structural layer (cushion layer) first, then the leveling layer and the surface layer, and the construction period is longer. [0004] The conventional method of pre-embedded iron parts is to install channel steel and other iron parts at the same time as the steel bars on the upper part of the beam are bound. The anchor bars are supported on the bottom form to prevent the elevation from being affected when pouring concrete, and the surface elevation must be observed at any time during the pouring of con...

AI Technical Summary

Problems solved by technology

This is not convenient for the precise positioning of the embedded iron parts, and it is prone to axis deviation and large elevation errors. It also brings a lot of inconvenience to the operation of leveling and finishing the concrete surface, which is not conducive to the control of the ground elevation. This construction method The precise positioning of the embedded iron parts is time-consuming and labor-intensive

[0005] The conventional method of reserving holes is to retain formwork for each hole. Since there are many holes and small openings in the switch room of the substation, the retention of these holes is costly and time-consuming, and the positioning is prone to deviation and the plane size is easy to be deformed.

Generally, the holes left in place are larger than the holes actually needed, which makes it difficult to block the holes in the later stage, which is time-consuming, labor-intensive and material-intensive, and also affects the appearance