Deep water concrete construction technology

Abstract

The invention relates to a deep water concrete construction technology. The technology comprises the steps that A, the size of concrete required to be casted for structural engineering is determined;B, an underwater concrete material is prepared; C, the underwater concrete material is transported to an underwater casting position through a winch, and casting is carried out after 40-50 seconds, the thickness of each casting is 25-30 millimeters, standing is carried out for 8-10 seconds after each casting is completed, and the above processes are repeated for many times until a designed castingposition is reached; D, curing is carried out for 1-3 days; E, maintenance is carried out after the curing is complete; F, an ultrasonic pulse wave is adopted to detect concrete, if the detection isqualified, the maintenance is finished, and if the detection is not qualified, the maintenance is continued for 2-3 days until the detection is qualified; G, water is drained, and then the construction is completed. The deep water concrete construction technology has the advantages that a zinc-containing concrete additive is added into the concrete to prepare a high-performance underwater concretematerial which is dispersed difficultly and has good fluidity, thereby improving the cohesive force of the concrete so as to achieve the effects of underwater non-segregation and self-leveling.

Description

technical field [0001] The invention belongs to the technical field of road construction, and in particular relates to a deep-water concrete construction technology. Background technique [0002] With the offshore development and the construction of a large number of underwater structural projects, especially the increase of deep underwater concrete pouring and construction projects, the quality requirements for concrete underwater pouring and construction are getting higher and higher. There is a need for a new method for pouring concrete under deep water. [0003] CN105133558B discloses a deep-water bare rock platform and its construction method. First, the initial steel pipe piles are inserted on the seabed rock surface, and reinforced concrete anchor piles are added inside, and then the seabed rock surface next to the initial steel pipe piles is gradually Pile foundation steel casings are placed at each root, and the adjacent pile foundation steel casings and initial st...

AI Technical Summary

Problems solved by technology

[0006] With the method provided by the above invention patents, concrete is prone to dispersion, segregation and cement loss under water, which complicates the construction process of deep-water concrete and increases the difficulty of construction in the fields of coal mine shaft shaft or deep-water offshore underwater structural engineering.