Outer shield arrangement structure for steel casings

Abstract

The invention discloses an outer shield arrangement structure for steel casings. The outer shield arrangement structure comprises lifting rings, steel blade feet, the steel casings, a reinforcement cage, an undisturbed soil layer, a water body and a sludge region, wherein the lifting rings are arranged at the top ends of the left and right sides of the whole, and are connected with the steel casings through steel wire ropes; the steel blade feet are arranged at the bottom of the whole and are regularly and perpendicularly welded together; the steel casings are arranged on the middle left and right sides of the whole, and are perpendicularly located right below the two lifting rings; the reinforcement cage is arranged on the outer sides of the steel casings, and the steel casings are connected with the reinforcement cage in a welding manner; the water body is arranged at the periphery of the whole; the sludge region is arranged at the bottom of the water body; and the undisturbed soil layer is arranged at the bottom of the sludge region. The outer shield arrangement structure for the steel casings is simple and is connected tightly; the pile top is regular and attractive; the construction cost is low, and the construction quality is guaranteed; and the outer shield arrangement structure for the steel casings is easy to popularize and use.

Description

technical field [0001] The invention relates to the technical field of application of steel casings, in particular to a structure of a steel casing plus an outer shield. Background technique [0002] When constructing bored piles in water areas, if the non-island cofferdam method or caisson cofferdam method is used for construction, after the underwater concrete pouring in the pile hole is completed, in order to ensure that the elevation of the pile top concrete meets the design requirements, the usual practice There are two types, one is to discard the steel casing without pulling it out, and the other is to use bagged clay to surround the casing before the pile hole is drilled. However, the steel casing cannot be used when the former method is used. All recycling is too wasteful. Although the use of the latter method can ensure the complete recycling of steel casings, the construction preparation workload is heavy. The exposed part of the top is extremely unsightly, and t...

AI Technical Summary

Problems solved by technology

[0002] When constructing bored piles in water areas, if the non-island cofferdam method or caisson cofferdam method is used for construction, after the underwater concrete pouring in the pile hole is completed, in order to ensure that the elevation of the pile top concrete meets the design requirements, the usual practice There are two types, one is to discard the steel casing without pulling it out, and the other is to use bagged clay to surround the casing before the pile hole is drilled. However, the steel casing cannot be used when the former method is used. All recycling is too wasteful. Although the use of the latter method can ensure the complete recycling of steel casings, the construction preparation workload is heavy. The exposed part of the roof is extremely unsightly, and the construction cost is very high. Therefore, we propose a structure of steel casing and outer shield to solve the above problems

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