Concrete construction device and method

Abstract

The invention relates to a concrete construction device. The concrete construction device comprises an outer pipe, an inner rammer, a steel reinforcement cage, a soil expander, a rib expander and an expansion steel bar ball, and further comprises a concrete construction method which comprises the following steps that 1) a pile hole is pre-excavated; 2) the outer pipe is sunk into the pile hole; 3)the inner rammer freely falls to expand and punch the bottom space of the outer pipe; 4) the soil expander is put into the outer pipe for soil expansion; 5) the soil expander is taken out, and the bottom space is expanded and punched through free falling of the inner rammer; 6) the step (4) and the step (5) are repeated to expand and punch an expanded head space; 7) the soil expander and the inner rammer are taken out, and the soil expander and the inner rammer are put into the steel reinforcement cage; 8) the rib expander is placed into the outer pipe for rib expansion; 9) a layer of cementis poured into the expanded head space; 10) the expansion steel bar ball is placed into the expanded head space, and a binding rope is pulled out; 11) the opened expansion steel bar ball is adjusted through an adjusting rod; 12) concrete is poured into the outer pipe to the top of a pile; and 13) the outer pipe is lifted out, and the dense concrete is vibrated. The construction method has the effect that the constructed pile is high in anti-pulling capacity.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a concrete construction device and a construction method. Background technique [0002] Concrete construction is carried out in accordance with the requirements of the design drawings, making and binding steel bars, placing and fixing formwork, using raw materials that meet quality requirements, mixing, transporting, pouring, and curing according to the specified ratio, and at the same time carrying out the whole process of each link Quality control and inspection. Concrete is one of the most important civil engineering materials in contemporary times, and its application is extensive, such as concrete beams, concrete piles, concrete walls and so on. [0003] Reinforced concrete pile is a pile made of concrete with steel bar as the skeleton. It has been widely used in the foundation engineering of hydraulic construction, industrial construction, civil construction and ...

AI Technical Summary

Problems solved by technology

[0005] However, through the extrusion and expansion of dry hard concrete, the main reinforcement at the bottom of the reinforcement cage will be spread out. Different reinforcements will have different extrusion and expansion forces, resulting in different degrees of bending of the reinforcement, so that the reinforcement in the expansion head The skeleton is not evenly distributed. At the same time, only the outer layer of the enlarged head is equipped with steel bars and the interior is empty. There is no good skeleton to play a fixed role. The strength of the enlarged head is not high enough, and the pull-out capacity of the concrete pile is not strong enough.

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