Concrete elevation gradient controller

Abstract

The invention discloses a concrete elevation gradient controller which is characterized in that four upright seats in the same specification are welded on a V-shaped vibration steel plate; four elevation control uprights are mounted on the upright seats; backing plates, damping springs, spring seats, a first cross beam with holes and a second cross beam with holes are mounted on the elevation control uprights in a sleeving manner respectively; a first longitudinal beam and a second longitudinal beam are fastened on the undersides of the two ends of the cross beams respectively to form a rack; travelling wheel support shafts in four travelling wheel devices are mounted and fastened in holes at the two ends of the first longitudinal beam and the second longitudinal beam to form a conveying device; the upper ends of four support rods are fastened on outer walls of the first cross beam and the second cross beam by bolts respectively; limiting wheel devices are mounted at the lower ends of the four support rods; a vibration steel plate is manufactured into the V-shaped vibration steel plate; an included angle between each of two inclined planes of the V-shaped vibration steel plate and a horizontal plane is 2-8 degrees; and a vibrator is mounted and fixed between two limiting plates.

Description

technical field [0001] The invention relates to a controller, in particular to a controller for the elevation and slope of the concrete elevation and gradient of the subgrade sealing layer between the left and right lines of the ballastless railway track (passenger dedicated line). Background technique [0002] The ballastless track of the railway (passenger dedicated line) subgrade is the current development trend of the railway, and the supporting project of the ballastless track has also become the key point of construction quality control, especially the concrete sealing layer between the left and right lines of the ballastless track supporting project on the subgrade. In order to ensure the drainage between the left and right lines of the ballastless track of the railway subgrade, and to protect the railway subgrade from being penetrated by rainwater after it is formed and operated, the left and right lines of the ballastless track of the railway subgrade should be close...

AI Technical Summary

Problems solved by technology

In the existing control method, due to the limited operating space between the left and right lines of the ballastless track, large control equipment cannot be used, and only a level or a spirit level can be used to detect and control the concrete surface poured between the left and right lines of the ballastless track. These two tools are less effective in controlling the construction of concrete, and they are controlled on a point-by-point basis. They cannot effectively control the elevation and slope of the poured concrete surface, resulting in slow construction progress.

Moreover, the thickness of the concrete between the lines is relatively thin, and it is difficult for the vibrating rod to meet the geometric design requirements of the surface between the lines of the ballastless track of the railway subgrade for the cast-in-place concrete during construction.

If the cross-section and surface geometric dimensions of the concrete between the left and right lines of the ballastless track of the railway subgrade are not properly controlled, it will cause different degrees of water accumulation after the completion of the concrete construction between the left and right lines of the ballastless track of the railway subgrade, which will affect the subgrade of the ballastless track and the high-speed driving Train poses safety hazard

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