Underwater variable-label synchronous continuous pouring method and device for steel tube concrete upright column pile

Abstract

The invention relates to a method and a device for synchronous and continuous pouring of steel pipe concrete upright piles with variable labels under water. The pouring device includes a steel pipe column and a pile hole. The steel pipe column is located in the pile hole. The pouring method first injects the first type of marked concrete into the pile hole through the conduit until the pouring surface elevation of the first type of concrete is equal to The elevation of the design interface is the same; then inject the second type of marked concrete into the pile hole through the conduit until the pouring surface elevation of the second type of marked concrete is consistent with the elevation of the preset pile top surface; then in the steel pipe column Fill the gap between a part of the outer wall and the inner wall of the pile hole; finally, continue to pour the second type of marked concrete until the laitance in the steel pipe column overflows from the top of the steel pipe column, and the pouring is completed. The pouring method disclosed by the invention can effectively reduce the construction difficulty and optimize the pouring process of the concrete column, which not only saves raw materials, but also facilitates the chiseling process in the later stage.

Description

technical field [0001] The invention relates to the pouring field, in particular to a method and device for underwater pouring of steel pipe concrete column piles. Background technique [0002] Reverse design is increasingly widely used in the field of building construction. Some of the columns used are often designed as a whole with the basement structural columns, and some of the columns are used as permanent structural columns in the basement. The columns used as permanent structural columns are mostly made of steel pipe concrete poured. [0003] Because it is used as a permanent structural column, the load conditions of the concrete on the upper and lower parts of the column are usually inconsistent, and the strength level of the concrete located in the steel pipe column is usually higher than that of the concrete located in the lower part of the pile hole. If it is different, it will cause certain difficulties to the construction. In addition, during the pouring proce...

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Problems solved by technology

[0003] Because it is used as a permanent structural column, the load conditions of the concrete on the upper and lower parts of the column are usually inconsistent, and the strength level of the concrete located in the steel pipe column is usually higher than that of the concrete located in the lower part of the pile hole. Different, it will cause a certain degree of difficulty to the construction

In addition, during the pouring process of the traditional method, the gap between the steel pipe and the hole wall is usually not treated, resulting in the gap being filled with concrete. When the column mechanism is excavated later, the concrete outside the steel pipe needs to be chiseled, which is different from the design. The original design intention of the author does not meet, and a lot of concrete materials are wasted

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