Method for butting buried cable steel tube on site during construction

Abstract

The invention relates to the technical field of electric engineering construction, in particular to a method for butting a buried cable steel tube on site during construction. The method comprises the following steps of: (1) manufacturing a wedge-shaped chambering tube; (b) wedging the wedge-shaped chambering tube into a ring opening tube to expand the tube diameter of the ring opening tube, and welding fixed diameter steel bars to side walls on two sides of the opening of the ring opening tube to form a butting sleeve; (c) sleeving the tube ends of two polished cable steel tubes into the butting sleeve, and cutting off the fixed diameter steel bars on the butting sleeve; (d) totally fitting the tube orifices of the cable steel tubes, fixing the cable steel tubes by spot welding, and thentightly welding each connector; and (e) polishing the welding slag at the welded part, and coating anti-rusting paint on the cable steel tubes so as to finish butting the cable steel tubes. By using the method, materials are taken from the construction site, no extra material is needed, the manufacturing process is simple and practical, on-site construction is convenient, the construction cost issaved, the butting misalignment and burrs of the tube orifices can be reduced, and the efficiency and quality of paving cables are guaranteed.

Description

technical field [0001] The invention relates to the technical field of electrical engineering construction, in particular to a method for connecting cable steel pipes in long-distance direct-buried cable pipe trenches, which is easy to implement on site during construction. Background technique [0002] In the electrical equipment installation project, due to the requirements of the on-site environmental conditions, many electrical pipe fittings are directly buried underground according to the design. For example, when laying cables, sometimes it is necessary to meet the power distribution requirements of the system through long-distance direct buried cable trenches. At this time, the installation quality of the direct-buried cable pipe directly affects the construction period and quality of the cable laying, and the installation of the cable pipe is most affected by the dislocation of the nozzle and the burr of the nozzle, which may easily cause the cable to fail to pass th...

AI Technical Summary

Problems solved by technology

At this time, the installation quality of the direct-buried cable pipe directly affects the construction period and quality of the cable laying, and the installation of the cable pipe is most affected by the dislocation of the nozzle and the burr of the nozzle, which may easily cause the cable to fail to pass through or scratch the insulation layer.

At present, there is no simple and easy method to carry out on-site docking of directly buried cable steel pipes

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