Recoverable pre-stressed anchor cable and construction method thereof

Abstract

The invention discloses a recoverable pre-stressed anchor cable and a construction method thereof. The recoverable pre-stressed anchor cable is characterized in that an anchoring section is connected with a free section through a connector, a high-temperature device is installed in the connector in a matching mode, and the high-temperature device is contiguously connected with an anchoring part. The construction method includes the following steps: firstly conducting assembling an anchor cable; sending the anchor cable into an anchor drill hole in the slope surface; conducting grouting through a drilled grout hole; conducting tension processing to the free section; conducting hole sealing to the anchor drill hole in the slope surface; after the anchor cable is used, softening the anchoring section in the connector through the high-temperature device, and the anchoring section is enabled to break away from the connector; applying a drawing force on the free section, and pulling out the free section from the anchor drill hole. According to the way, the recoverable pre-stressed anchor cable can soften environment-friendly materials and enable the environment-friendly materials to break away from the connector through the high-temperature device, detachability of the free section and the anchoring section is achieved, the overall device structure is simple, and operation is convenient. In addition, due to the fact that the free section and the connector can be recovered and utilized repeatedly, the recoverable pre-stressed anchor cable has very high economic practicability.

Description

technical field [0001] The invention relates to the field of foundation pit support engineering, in particular to a recoverable prestressed anchor cable and a construction method thereof. Background technique [0002] In engineering construction, it is often necessary to anchor and support some temporary facilities. For example, in urban construction, some temporary excavations need to be supported by anchor cables. The existence of these anchor cables not only has a certain impact on the underground environment of the foundation , In addition, it also greatly affects the later construction of surrounding buildings; at the same time, it needs to consume a lot of steel (bar) strands, cast iron anchor heads, cement slurry and other materials. [0003] The anchor cables in these temporary facilities are usually not recyclable, a large amount of materials are wasted during the construction period, and a large amount of construction costs are increased. If these temporary facili...

AI Technical Summary

Problems solved by technology

[0002] In engineering construction, it is often necessary to anchor and support some temporary facilities. For example, in urban construction, some temporary excavations need to be supported by anchor cables. The existence of these anchor cables not only has a certain impact on the underground environment of the foundation , In addition, it also greatly affects the later construction of surrounding buildings; at the same time, it needs to consume a lot of materials such as steel (bar) strands, cast iron anchor heads, and cement slurry

[0003] The anchor cables in these temporary facilities are usually not recyclable, a lot of materials are wasted during the construction period, and a lot of construction costs are increased

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