Construction method of foundation pit top-down method steel pipe structure column concrete pouring assembly type platform

Abstract

The invention relates to the technical field of concrete pouring, and discloses a construction method of a foundation pit top-down method steel pipe structure column concrete pouring assembly type platform. The construction method comprises the following construction steps that 1) the assembly type platform is manufactured, the assembly type platform comprises an annular frame, a supporting plate is laid on the annular frame, a plurality of longitudinal frames are connected to the lower portion of the annular frame, a protective surrounding frame is arranged on the periphery of the annular frame, and the protective surrounding frame surrounds the periphery of the annular frame; 2) the assembly type platform is hoisted to an orifice of a tool column, and the longitudinal frames and the tool column are fixedly connected through bolts; 3) a pouring guide pipe is hoisted, and the pouring guide pipe falls into the tool column from top to bottom; 4) a pouring hopper is hoisted to the annular frame, and the top of the pouring guide pipe is in butt joint and communicates with the pouring hopper; and 5) concrete is poured through the pouring hopper. The construction method of the foundation pit top-down method steel pipe structure column concrete pouring assembly type platform has the advantages that installation and use are convenient and fast, the work efficiency is improved, operation is safe and reliable, and the cost is reduced.

Description

technical field [0001] The patent of the present invention relates to the technical field of pouring concrete, in particular, it relates to a construction method of an assembled platform for pouring concrete into a steel pipe structural column in a foundation pit. Background technique [0002] With the rapid development of modern cities, the scale of deep foundation pit projects is getting larger and larger, and the requirements for environmental protection are getting higher and higher. Compared with traditional foundation pit construction methods, reverse construction has the advantages of protecting the environment, saving social resources, and shortening construction time. It is widely used in deep foundation pit engineering due to its many advantages such as cycle time. [0003] Steel pipe structural columns are a common form of foundation piles constructed by the upside-down method of foundation pits, and the precision requirements are very high. Generally, full casing...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a construction method for pouring concrete assembly platforms for steel pipe structural columns in foundation pits, aiming at solving the problem in the prior art that the pouring platform cannot be suitable for pouring concrete at the holes of various tool columns

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