Sliding support for through fixing multi core tubes in one sleeve

Abstract

The invention discloses a sliding support for piercing a plurality of core pipes in a casing, which is a sliding bracket for simultaneously piercing first core pipes from large to small in diameter in a casing. 1. The sliding support for the three core tubes of the second core tube and the third core tube includes two circular base plates arranged in parallel, and at least there are provided on the circular base plate for penetrating through the first core tube, the second core tube and the third core tube respectively. The first through-hole, the second through-hole and the third through-hole of the core tube; the round substrate is fixed with a core tube hoop for fixing each core tube around each through-hole; The frame hoop is fixedly provided with at least two rollers. Because the sliding support of the present invention adopts a circular frame structure, the anti-overturning ability of the sliding support is improved, and at the same time, space conditions are provided for expanding the distance between core tubes in the same casing, and the combined center of gravity of multiple core tubes can be effectively controlled, which has a wide range of advantages. application value.

Description

technical field [0001] The invention relates to the field of pipeline laying, in particular to a sliding bracket for simultaneously laying a plurality of core pipes with smaller diameters in a steel casing with a large pipe diameter. Background technique [0002] In the steel pipeline laying project in the field of underground pipeline laying, the pipe jacking process is generally used to realize the crossing of steel pipelines to railways, highways, and rivers of various levels. The main steps of the pipe jacking process in the prior art are: [0003] First, determine the position of the crossing pipe, find out the obstacles in the crossing direction (including underground buildings, important municipal facilities, etc.) and the geological conditions within the scope of the crossing project; [0004] Secondly, excavate pipe jacking pits and receiving pits at both ends of the crossing; [0005] Then, in the pipe jacking pit, jack the casing to the receiving pit; the pipe j...

AI Technical Summary

Problems solved by technology

However, the calculation of the above-mentioned technical means is complex, the construction process is many, and the reliability is poor.

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