A kind of steel casing device convenient for recycling

Abstract

The invention belongs to the field of bridge foundation construction, and particularly discloses a steel casing device convenient to recycle. The steel casing device comprises fixing rods, a support steel casing and at least two steel casing bodies, wherein the support steel casing and the steel casing bodies are both formed by splicing corrugated webs; fixing ring beams are connected to the inner walls of the support steel casing and the steel casing bodies; a plurality of fixing parts are arranged in the support steel casing, and threaded holes are formed in the fixing parts; threads are arranged at the lower parts of the fixing rods; connecting parts are arranged in the steel casing bodies, and through holes are formed in the connecting parts; grooves are formed in the upper parts of the support steel casing and the steel casing bodies, bulge blocks are arranged at the lower parts of the steel casing bodies, positioning rods are hinged to the bulge blocks, a spring is connected between each positioning rod and the outer wall of the corresponding steel casing body, and a pull rope is connected to the upper part of each positioning rod. With adoption of the technical scheme, the used corrugated webs are reasonable in length and convenient to produce, and the processed corrugated webs have small error and are convenient to recycle after construction.

Description

technical field [0001] The invention belongs to the field of bridge foundation construction, and in particular relates to a steel casing device which is convenient for recycling. Background technique [0002] Steel casing is in the process of pile foundation construction, due to the instability of the soil, it is difficult to construct reinforced concrete wall, so the steel wall is used to protect the hole pile, prevent the hole from collapsing and avoid affecting the construction progress and safety. structure. It has the functions of stabilizing the hole wall, preventing hole collapse, forming mud pressure, isolating surface water, guiding the drill bit, fixing the pile position, and protecting the original ground during operation. The steel casing is an important structure in the bridge bored pile foundation. The traditional steel casing is rolled on site or in a factory with a certain thickness of steel plate. After the production is completed, it is hoisted to the si...

AI Technical Summary

Problems solved by technology

This invention is aimed at super-large-diameter bored piles, and the construction is more convenient and the cost is lower; but this invention also has the following defects: 1. It is easier to process multiple corrugated webs than the whole process, but the steel casing needs to sink to very deep waters , so the corrugated web needs to be processed into a very long length. On the one hand, few factory equipment can process too long length. steel casing

2. The steel casing needs to settle down to very deep waters. After the construction is completed, when the corrugated web is recovered from the bottom of the water, if the corrugated web is too long, many existing equipment cannot successfully lift the corrugated web from the water out, making recycling difficult

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