Installation device and construction method of a two-liner roof formwork

Abstract

The invention relates to a top mold installation device for a two-lined platform, which includes a sliding groove group, a guide rail device, a guide rail moving mechanism, a jacking device, and a transfer device. The space where the guide rail device slides longitudinally, the guide rail device can move along the sliding groove group under the action of the guide rail moving mechanism, the jacking device is installed on the bottom longitudinal beam of the door frame, and is used to lift the top mold Raised to the transfer height, the transfer device can move along the guide rail device and can be lifted, used to transfer the top form and move the top form to the installation position and place it on the table beam. The invention also provides a construction method applied to the device. The invention can realize the installation of the top mold of the two-lining platform, and is easy to operate, safe and reliable.

Description

technical field [0001] The invention relates to the field of tunnel construction equipment, in particular to a two-liner roof form installation device and a construction method applied to the device. Background technique [0002] At present, the second lining trolley of the tunnel is generally installed in the tunnel hole. Due to the limitation of the space in the hole, it is usually assembled by a loader supplemented by a manual hoist. The assembly process is: assembly preparation→determination of the lifting point position→the location of the vault lifting point Elevation and excavation → installation of anchor bolts → site leveling in the cave → laying trolley track → installation of running mechanism → installation of bottom longitudinal beam → installation of door frame → installation of scissors brace → installation of platform beam → installation of bracket → installation of roof Mold→Install side mold→Install side mold→Install hydraulic system→Complete machine debugg...

AI Technical Summary

Problems solved by technology

[0004] 1. It is necessary to increase the height of the vault at the lifting point and expand the excavation, which increases the amount of work and construction difficulty;

[0005] 2. Use the pre-embedded anchor rod as the lifting point, and use the wire rope to lift the four corners, which has poor maneuverability and potential safety hazards;

[0006] 3. Due to the limitation of the bearing capacity of the pre-embedded anchor, it is necessary to install the bracket and the top form separately. Install the bracket first and then install the top form. When installing the top form, hang the four corners, and the top form is open. The stress state is not good, and it is easy to deform the top mold;

[0007] 4. After each section of the top mold is hoisted in place, the trolley needs to be driven under the top mold. After connecting with the bracket, the trolley will drive away again, and then assemble the next section. Due to the heavy weight and large inertia of the trolley, it is difficult to move Inconvenient and low positioning accuracy, it is easy to cause the two top molds to collide with each other

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