Substation switch room reserved pre-buried rear construction method

Abstract

A substation switch room reserved and pre-embedded rear construction method mainly includes the following steps: base construction preparation, leveling, ground level maintenance, and embedding parts placement. The present invention is a construction technique in which the traditional construction of substation switch rooms and cable interlayers is reserved and pre-embedded synchronously with the construction of the main body, and is changed into a construction method of opening and slotting after pre-reserving and pre-embedding. The pre-embedded iron parts constructed by the post-positioning method have relatively simple process, precise construction positioning, well-controlled elevation, and no objects protruding from the slab surface, which makes the operation easy and simple during the construction process, and the elevation of the slab surface is also easy to control. Save time and save labor costs. For the installation of reserved holes, it is no longer necessary to leave a template in advance for opening the holes, which is labor-intensive and time-consuming, and the problems of deviation and easy deformation of the plane size are not easy to occur during positioning. The overall process is beautiful, which not only saves time but also reduces costs. At the same time, the workload of hole sealing in the later stage 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