Movable wheel type trolley supporting system for long-distance overlapping shield tunnel of small clear distance

Abstract

The invention discloses a movable wheel type trolley supporting system for a long-distance overlapping shield tunnel of small clear distance, comprising one or a plurality of groups of wheel type supporting trolleys with the same structure, wherein the groups of wheel type supporting trolleys can move back and forth on steel rails arranged in a constructed shield tunnel and are assembled into a whole by connecting bars; each wheel type supporting trolley comprises a trolley frame, a running mechanism and a plurality of supporting mechanisms transversely arranged on the trolley frame; each supporting mechanism comprises a plurality of wheel type supporting mechanisms and a plurality of pushing devices for supporting; the wheel type supporting mechanisms and the pushing devices are symmetrically arranged on the trolley frame; and the wheel type supporting mechanisms are arranged in the constructed shield tunnel along a circumferential direction and come into contact with circular concrete segments arranged on the inner wall of the shield tunnel. The trolley supporting system has the advantages of reasonable structure, convenient installation, simple use and operation and good use effect, overcomes the defects of difficult installation and dumping and the like of the traditional crossed supporting system while in continuous support, and greatly enhances the supporting efficiency.

Description

technical field [0001] The invention belongs to the technical field of construction of long-distance and small-space overlapping shield tunnels, and in particular relates to a movable wheeled trolley support system for long-distance and small-space overlapping shield tunnels. Background technique [0002] From domestic and foreign engineering practices, there are not many engineering examples of long-distance and small-distance overlapping shield tunnels, and they are mainly parallel tunnels or short-distance and small-angle overlapping cross tunnel projects. During the construction of overlapping shield tunnels, because the structure of the first tunnel is affected by the construction of the subsequent shield tunnel, the structure of the preceding tunnel in front of the shield head will bear the greater pressure of the construction of the subsequent shield tunnel during the shield construction of the latter tunnel, so There will be a certain degree of disturbance; and the l...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a movable wheeled trolley support system for long-distance and small-distance overlapping shield tunnels in view of the deficiencies in the above-mentioned prior art. It is simple, effective in use and high in practical value. While supporting continuously and continuously, it overcomes the difficulties of installation and unlucky work existing in the existing cross support system, and greatly improves the support efficiency.

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