Full-circle needle beam lining trolley and construction method thereof

Abstract

The invention discloses a full-circle needle beam lining trolley and a construction method thereof. The full-circle needle beam lining trolley comprises a top die, side dies, side dies, a needle beam frame and needle beams and is characterized by further comprising side beams, longitudinal guide rails, annular guide rails, an annular rail trolley, a sliding formwork and an annular rail trolley driving mechanism, the needle beam frame is rigidly connected with the side beams, the number of the side beams is two, the upper plane of each side beam is rigidly connected with the side formwork, the longitudinal guide rail and the annular guide rail are located between the two side beams and rigidly connected with the side beams, the annular guide rail is in sliding connection with the annular rail trolley, and the annular rail trolley is rigidly connected with the sliding formwork; and the annular track trolley driving mechanism is rigidly connected to the needle beam frame to drive the annular track trolley to move on the annular guide rail. By the adoption of the full-circle needle beam lining trolley, the bottom of the whole tunnel is in an open state in the lining process, vibration operation is facilitated, vibration exhaust is facilitated, no dead corner exists during vibration, and concrete is high in compactness and strength.

Description

technical field [0001] The invention relates to a construction device in tunnel concrete lining construction, in particular to a full-circle needle beam lining trolley and a construction method thereof, which are used for the construction of tunnel full-section concrete one-time lining. Background technique [0002] The full-circle needle beam trolley is a large-scale formwork equipment used for excavating circular or horseshoe-shaped tunnels for concrete lining construction. [0003] The full-circle needle beam trolley currently in use is mainly composed of: top formwork, side formwork, bottom formwork, needle beam frame, needle beam, needle beam base, support jack, oil cylinder, traction mechanism and other components. The top formwork, side formwork, and bottom formwork can be rotated or stretched through the supporting jack and the oil cylinder base and the needle beam frame when the formwork is erected (removed). The needle beam frame can drive the formwork to slide on ...

AI Technical Summary

Problems solved by technology

[0004] However, the existing full-circle needle beam trolley has the following disadvantages: 1. Since the bottom of the tunnel is covered by the bottom formwork, the vibration of the concrete needs to be carried out from the work window opened on the formwork. Due to the limitation of the formwork structure, the number of arrangement of the work windows is limited. The concrete surface that needs to be vibrated cannot be fully taken into account, resulting in the structural strength of the bottom concrete not up to the standard due to insufficient vibration; 2. The process of opening and closing the work window is cumbersome and the distribution mechanism cannot be flexibly adjusted due to the position of the work window when distributing materials, resulting in long construction time; 3. , the large amount of steel used in the bottom formwork will cause a great waste of resources

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