A construction method for gate floor

Abstract

The invention discloses a gate bottom board construction method. The gate bottom board construction method includes the steps that the positions where gate bottom boards are about to be spliced to a construction site are determined, and contact grout pipes are pre-buried in the positions; concrete in each gate bottom board is cast in advance; a mounting platform is built on the construction site; the already pre-cast gate bottom boards are conveyed to the construction site, put on the mounting platform and spliced in place; joint grout pipes are buried; back concrete backfill construction of the bottoms is conducted; and finally, the contact grouting construction of the spliced positions of the site and the joint grouting construction among concrete are conducted. According to the gate bottom board construction method, the construction is convenient, the construction quality is easier to guarantee, and the cost is low; it can be guaranteed that no gap exists between the gate bottom boards and the concrete; the grouting work amount is reduced, the grouting quality is easy to guarantee, and the quality problem caused by the fact that the gate bottom boards are mounted firstly and then concreting and grouting are conducted in the prior art is effectively solved.

Description

technical field [0001] The invention relates to the technical field of water conservancy and hydropower engineering construction, in particular to a construction method for a gate bottom plate. Background technique [0002] In the construction of water conservancy and hydropower projects, it is generally necessary to install gates for water storage, flood control, and flood discharge. In the past construction, the gate bottom plate is generally installed first, and then the concrete pouring construction is carried out. It is relatively common to adopt the construction method of first installing the gate floor and then pouring concrete, but this method has the following problems. 1. The bottom surface of the gate floor is uneven and difficult to fix; 2. The quality of concrete pouring is not easy to guarantee. Although backfilling and grouting can make up for defects to a certain extent, there is inevitably a cavity between the concrete and the gate floor, and external water...

AI Technical Summary

Problems solved by technology

1. The bottom surface of the gate floor is uneven and difficult to fix; 2. The quality of concrete pouring is not easy to guarantee. Although backfilling and grouting can make up for defects to a certain extent, there is inevitably a cavity between the concrete and the gate floor, and external water pressure is generated when the water flow is emptied. It leads to deformation of the gate bottom plate, especially in large and medium-sized projects where the quality of the gate bottom plate is high; 3. The amount of grouting between the gate bottom plate and the concrete is large, the cost is high, the quality is not easy to control, and the grouting quality inspection is difficult

Images