Vertical shaft slip form concrete calendaring device and calendaring method

Abstract

The invention provides a vertical shaft slip form concrete calendaring device and calendaring method. The vertical shaft slip form concrete calendaring device comprises a vertical shaft slip form arranged in a vertical shaft and vertically sliding along the inner wall of the vertical shaft; an annular first working platform connected with the vertical shaft slip form is arranged under the verticalshaft slip form; the first working platform is provided with an arc-shaped track, and the arc-shaped track is coaxial with the vertical shaft; the vertical shaft slip form concrete calendaring deviceis further provided with a walking trolley moving along the arc-shaped track; the walking trolley is provided with a calendaring device used for performing calendaring on the inner wall of the vertical shaft; and the walking trolley is further provided with a spraying device used for performing spraying on the inner wall of the vertical shaft. The vertical shaft slip form concrete calendaring device and calendaring method meets the construction requirements of circular cross section curvature and finish degree of the vertical shaft, prevents hydraulic building concrete early shaping cracks and eliminates tiny air holes.

Description

technical field [0001] The invention relates to a concrete surface treatment device and method, in particular to a vertical shaft sliding form concrete calendering device and a calendering method. Background technique [0002] With the continuous improvement of the national economic level, the electric power industry at home and abroad has also been greatly developed; hydropower stations occupy a large proportion in the electric power industry, and their construction quality has an important impact on the production of electric power companies; Concrete lining structures are often used in diversion tunnels, surge shafts, diversion and power generation tunnels, and shafts of power generation tunnels; the unevenness of the surface of the drainage structure has a significant impact on the incipient cavitation, and cavitation is a major component of the hydraulic industry. Avoid or reduce the phenomenon. [0003] With the continuous development of the construction of diversion-...

AI Technical Summary

Problems solved by technology

However, in the existing construction technology, regarding the treatment measures after demoulding, only local obvious quality defects are artificially flattened or repaired with puree, and generally no treatment is required for those that are smooth and flat after appearance inspection, and only need to strengthen maintenance , did not systematically and comprehensively deal with the early plastic shrinkage micro cracks, small pores, etc.

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