Construction method using long-distance preset concealed pipe to sleeve lead

Abstract

The invention discloses a construction method, particularly discloses a construction method using a long-distance preset concealed pipe to sleeve a lead and belongs to the technical field of construction processes of ancillary facilities of constructional engineering. The construction method is convenient to construct and operate, reliable and rapid in threading and relatively low in constructioncost. The construction method comprises the steps of pneumatically pre-sleeving the lead, pre-sleeving the lead with a transition line, and pulling the transition line to arrange an electrical pipeline. When the lead is pneumatically pre-sleeved, a hollow plastic ball is driven by high-pressure gas, so that the hollow plastic ball guides the high-strength flexible lead to penetrate through the corresponding long-distance preset concealed pipe to finish the pneumatic pre-sleeving of the lead.

Description

technical field [0001] The invention relates to a construction method, in particular to a construction method for threading long-distance preset hidden pipes, and belongs to the technical field of construction technology for auxiliary facilities of construction projects. Background technique [0002] For modern residences, public buildings and other projects, in order to pursue the beauty of the building, it is generally chosen to lay most of the electrical pipelines with hidden pipes. In this way, the electrical pipelines can be reserved synchronously during the construction of the main structure, saving a lot of wiring time for the later pipeline construction. But then there were many problems. For example, when the threading operation is carried out in the later stage, due to the long embedded pipeline, the traditional steel wire threading may not be able to penetrate the reserved pipeline. Even if it is required by the code that the line length of the pre-embedded pipe...

AI Technical Summary

Problems solved by technology

For example, when the threading operation is carried out in the later stage, due to the long embedded pipeline, the traditional steel wire threading may not be able to penetrate the reserved pipeline

Even if it is required by the code that the line length of the pre-embedded pipe is longer than 30 meters, a wire box should be added. Although this method solves the above problems to a certain extent, in the actual implementation process, the wire box added in the middle of the long-distance embedded pipe In the process of concrete pouring, the risk of plugging of pre-embedded pipes is increased, and at the same time, the cost is increased, and workers are easy to grasp the position of the additional wire box during construction, resulting in the actual length of pre-embedded pipes being greater than 30m, causing subsequent construction difficulties

[0003] The application number is 202010362990.9. The technical solution provided by the patent of a new type of threading machine power structure, although it can carry out long-distance threading, but it has relatively high requirements for the turning radius of the pre-embedded pipe, and the stability of wire feeding or pulling is poor. For complex conditions cannot be met

At the same time, the equipment is expensive, and its leads are easily damaged, and the maintenance cost is very high

[0004] To sum up, long-distance pre-embedded pipe threading is extremely difficult, and the risk of pipe blockage by adding a wire-passing box in the middle is relatively high. The power structure of the new threading machine has high requirements on the turning radius of the pre-embedded pipe and its cost is high

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