Gripping type anchor with cores convenient to disassemble and method for recycling cores of gripping type anchor

Abstract

The invention discloses a gripping type anchor with cores convenient to disassemble. The gripping type anchor comprises an anchor plate, a fixing head and isolation sleeves; anchor holes are formed in the anchor plate; the fixing head is arranged on the lower side of the anchor plate; the outer diameter of the fixing head is larger than the inner diameter of each anchor hole; through holes are formed in the fixing head; the cores penetrate the through holes of the fixing head and then penetrate the anchor holes during usage; the cores are nested in the isolation sleeves used for isolating the cores from concrete on the outer sides of the cores; an electric heating device is arranged on the anchor plate or the fixing head; the anchor plate or the fixing head is made of fusible materials, and can be softened or fused when the electric heating device realizes a heating effect. A method for recycling the cores of the gripping type anchor with the cores convenient to disassemble includes steps of firstly, electrifying a conducting wire to enable the electric heating device to realize the heating effect until the anchor plate or the fixing head is softened or fused; secondly, pulling out the cores. The gripping type anchor with the cores convenient to disassemble and the method have the advantages that the gripping type anchor is simple and practical in structure, and the method is simple and can be implemented conveniently.

Description

technical field [0001] The invention relates to a core-removable grip-wrapped anchorage and a core material recovery method, which are applied to geotechnical engineering foundation pits and slope support, and can conveniently recover core materials. 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, cast-in-situ piles, anchor rods and soil nails are widely used in geotechnical engineering. The core material of the main force-bearing components is steel, such as steel bars, steel pipes, steel strands, and steel wire ropes. The pits and slopes have achieved very good results, but the steel materials usually used are one-time use, and the core materials are left in the soil layer after use, which not only wastes materials, but ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, cast-in-situ piles, anchor rods and soil nails are widely used in geotechnical engineering, and the core material raw materials of the main force-bearing components are all steel materials, such as steel bars, steel pipes, steel strands, and steel wire ropes, which are used to reinforce foundations. The pits and slopes have achieved very good results, but the steel materials used are usually used for one-time use, and the core materials are left in the soil layer after use, which not only wastes materials, but also forms obstacles to the construction of adjacent buildings

For example, the length of the commonly used anchor rods basically reaches 20-30 meters, and the soil nails reach 8-15 meters. It is difficult to recycle them according to the existing technology.

In quite a few engineering examples, special construction measures have to be taken in the subsequent construction of adjacent buildings due to the impact of anchor rods and soil nails, which greatly increases the difficulty and cost of dealing with underground obstacles during development.

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