Construction method of prefabricated flue plate installation machine and tool for installing flue plate based on forklift

Abstract

The invention provides a forklift-based prefabricated flue plate mounting tool and a construction method thereof. The mounting tool comprises a forklift, a hoist boom and a hoist connecting part. Thehoist boom is arranged on the forklift. The hoist connecting part is connected with the hoist boom. A flue plate is hung below the hoist connecting part. The construction method comprises the steps that the indication sign of flue plate mounting work is mounted; the long side of the flue plate is placed at the designated spot in the tunnel direction; the flue plate is lifted by the mounting tool;the flue plate and the center axis of a tunnel are adjusted to form the posture of a 45-degree angle; the flue plate is lifted to be above concrete bracket columns, and the long side of the flue plateis adjusted to be perpendicular to the center axis of the tunnel; and the flue plate is lowered and adjusted to conform to the mark position of concrete brackets. The mounting tool is simple in structure and convenient to operate, mounting of the flue plate can be carried out in narrow tunnel space, and the subsequent procedure is not influenced.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a construction method for installing a prefabricated flue plate installation tool based on a forklift. Background technique [0002] Since the 1990s, with the expansion of urban scale and the rapid development of infrastructure construction, super large diameter and long distance have become the needs of shield tunnel construction and development. This type of tunnel usually adopts a full longitudinal section smoke exhaust ventilation design scheme, that is, a jet fan-induced longitudinal ventilation is used, and the surplus arched space at the top of the circular tunnel is used as a ventilation and smoke exhaust channel. The jet fan is hung below to assist the induced ventilation during normal and blocked traffic, and a centralized exhaust outlet is set near the exit of the tunnel to discharge the exhaust gas. [0003] The smoke exhaust channel is composed of corbel...

AI Technical Summary

Problems solved by technology

The construction method of the cast-in-place flue slab is to erect the formwork first, then set up the formwork, and then pour the concrete flue slab. This construction method is labor-intensive, time-consuming, and not conducive to cross-construction

The current construction method of prefabricated flue slabs is to transport and hoist the prefabricated flue slabs with floor-mounted truss trucks. The main disadvantages of this construction method are: ① The truss trucks have large dimensions in the width direction and cannot be stretched, and the travel of the truss trucks is limited by shields The construction of supporting equipment and side passages behind the mechanism will affect the construction progress of the flue slab; ②The truss truck needs to occupy the tunnel space for a long time, which is not conducive to the transportation of tunnel segments and opening components, and affects the advancement of the shield and the assembly of the opening components

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