Expansion pipe type pipeline renewal construction device with stress release holes added

• Main Authors: LI JIE, HE XIAOTONG, LIU QICHAO, HUANG SHANGHENG, SONG DICHEN
• Format: Patent
• Language: Chinese; English
• Published: 07.11.2023
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model belongs to the field of stress release hole construction, and particularly relates to an expansion pipe type pipeline renewal construction device for increasing stress release holes, which comprises a plurality of support rods, the plurality of support rods are sequentially connected end to end to form a drill rod together, the drill rod is positioned above an original pipeline and below a road surface, and the drill rod is of a hollow structure. One end of the drill rod is connected with a first drilling machine and used for sequentially and coaxially connecting the multiple supporting rods and pushing the drill rod to drill out a stress release hole, the other end of the drill rod is connected with a second drilling machine, and the second drilling machine is connected with the end, stretching out of the stress release hole, of the drill rod and used for sequentially disassembling the multiple supporting rods. The drill rod formed by the multiple supporting rods is of a hollow structure, i