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Composite steel capable of conveniently recovering core material and recovering method of composite steel

A technology of composite steel and core material, applied in sheet pile walls, layered products, construction, etc., can solve the problems of leftover rods, waste of materials, construction obstacles of buildings, etc., to reduce frictional resistance, and the recycling method is simple and convenient. The effect of recycling

Inactive Publication Date: 2013-04-24
SUZHOU NG FOUND ENG
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] In the prior art, steel materials, such as steel bars, anchor rods and soil nails, are widely used in geotechnical engineering to reinforce foundation pits and slopes, and have achieved very good results, but the steel materials usually used are

Method used

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  • Composite steel capable of conveniently recovering core material and recovering method of composite steel
  • Composite steel capable of conveniently recovering core material and recovering method of composite steel

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[0019] detailed description

[0020] The present invention will be explained below with reference to the drawings.

[0021] Such as figure 1 Shown is a composite steel material capable of easily recovering core material according to the present invention, comprising a steel body and a fusible wrap layer 2; the fusible wrap layer 2 is arranged on the outside of the steel body and tightly wraps the steel The body; the fusible wrap 2 is provided with an electric heating device 3; in this embodiment, the steel body is a steel bar 1; of course, the steel bar body can also be a steel pipe, a steel strand, or a section steel; The fusible wrap layer 2 is made of epoxy resin or plastic or wax or nylon. Of course, the electric heating device 3 can also be arranged on the inner side wall or the outer side wall of the fusible wrap layer 2.

[0022] Such as figure 2 Shown is a schematic diagram of the application state of a composite steel material capable of easily recovering core materials...

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Abstract

The invention discloses a composite steel capable of conveniently recovering a core material and a recovering method of a composite steel. The composite steel capable of conveniently recovering the core material comprises a steel body and a fusible gripping layer, wherein the fusible gripping layer is arranged at the outer part of the steel body and tightly wraps the steel body, and an electric heating device is arranged at the inner part or on the side wall of the fusible gripping layer. The recovering method of the composite steel capable of conveniently recovering the core material comprises the following steps of: 1, electrifying and heating the electric heating device until the fusible gripping layer is softened or melted; and 2, extracting the steel body. With the adoption of the composite steel capable of conveniently recovering the core material, in the foundation pit and slope supporting process, the supporting performance cannot be influenced; and meanwhile, when the composite steel needs to be recovered, the electric heating device can be electrified and heated to enable the fusible gripping layer to be softened or melted, thus weakening the frictional resistance between the steel body and the fusible gripping layer and reaching the purpose of conveniently recovering the composite steel. The recovering method of the composite steel capable of conveniently recovering the core material is simple and practical.

Description

technical field [0001] The invention relates to a composite steel material which can be conveniently recycled as a core material and a recycling method thereof, which is applied to foundation pit and side slope support of geotechnical engineering. Background technique [0002] With the advancement of urbanization, the construction of underground facilities such as underground parking lots, underground pedestrian passages, underground commercial streets, and underground railways requires foundation pit and slope support. [0003] In the prior art, steel materials, such as steel bars, anchor rods and soil nails, are widely used in geotechnical engineering to reinforce foundation pits and slopes, and have achieved very good results, but the steel materials usually used are disposable , and the pole body remains in the soil layer after use, which not only wastes materials, but also forms obstacles to the construction of adjacent buildings, causing it to increase the cost of deal...

Claims

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Application Information

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IPC IPC(8): E02D5/74E02D9/00B32B33/00
Inventor 周建明沈忠徐高巍
Owner SUZHOU NG FOUND ENG
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