JPS5919700U - Slide form for tunnel construction - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

1 and 2 are a plan view and an elevation view, respectively, schematically showing a conventional slide form in which the gantry beam is not bendable. 3, 4 and 5 are plan views of various states of the slide form of the present invention having a bendable gantry-beam;
FIG. 3 shows the state before bending, FIG. 4 shows the state when used in an arcuate curved section of a tunnel, and FIG. 5 shows the state when used in an S-shaped curved section. FIG. 6 is a plan view comparing the state before the gantry beam is bent and the state after the gantry beam is bent at a curved portion in the tunnel, and the broken line indicates the state before the bending. Figures 7 and 8 are plan views of the bent portion of the gantry beam.
The figure shows the state before bending, and FIG. 8 shows the state after bending. FIG. 9 is an elevational view of the folded portion. FIGS. 10 and 11 are diagrams for explaining the mutual movement of the gantry main body and the traveling wheel frame, with FIG. 10 showing the state before movement, and FIG. 11 showing the state after movement. Both are cross-sectional views at the position of the movement adjustment device. FIG. 12 is a sectional view showing details of the movement adjustment device. FIG. 13 is a plan view showing the state of the slide form with the bent gantry beam before and after movement, and the broken line shows the state of the slide form before movement. In the figure, 1 is the gantry main body, 2 is the gantry beam, 3 is the running wheel frame, 31 is the running wheel, 4 is the ground, 5
51 is the bending point, 51 is the pin, 52 is the ratchet type turnbuckle, 53 is the channel steel, 6 is the rail, 71 is the movement stop plate of the gantry body, 72 is the movement stop plate of the traveling wheel mount, 73 and 74 are nuts , 75 is a threaded steel bar, 7
6 is a movement stop plate reinforcing plate.・

Claims (1)

[Scope of Claim for Utility Model Registration] 1. In a slide form used for secondary lining of tunnel construction, the steel material used for the steel girder for moving the formwork that constitutes the slide form is at least 1 in each of the front and rear parts.
In addition, the gantry body to which the steel girder for moving the formwork and the gantry body are fixed, and the traveling wheel frame on which the entire slide form is mounted are fixed. A slide form for tunnel construction, characterized by having a structure in which the steel girder and the traveling wheel frame can be mutually changed in position to prevent the steel girder and the traveling wheel mount from moving. ' 2 The bendable part of the steel girder for moving the formwork mentioned above is connected at the front and back by an expansion and contraction device with both ends fixed, and can be bent by operating this to expand and contract.
A slide form according to claim 1 of the utility model registration claim. 3. The movement stop plate fixed to the gantry body and the movement stop plate fixed to the traveling wheel frame are connected by a movement adjustment device, and the movement adjustment device is operated to adjust the movement stop plate of the gantry body and the movement stop plate. mutually moving the gantry body and the traveling wheel mount in the left-right direction of the tunnel axis by increasing or reducing the distance between the wheel mount and the movement stop plate;
A slide form according to claim 1 of the utility model registration claim.