A tarpaulin laying trolley

Abstract

The invention discloses a tarpaulin laying trolley, which comprises a door frame and a first arc-shaped track and a second arc-shaped track installed in parallel on the door frame, a first sliding trolley is installed on the first arc-shaped track, a second The second sliding trolley is installed on the arc-shaped track, a supporting mechanism is set between the first sliding trolley and the second sliding trolley, and a circular steel bar positioning device is arranged on the door frame. The supporting mechanism includes a connecting shaft and an adjustable support arm. , rollers and torsion springs, the hoop positioning device for steel bars includes a main frame and a vertical positioning support installed on the main frame, and a first horizontal positioning support and a second horizontal positioning support respectively arranged on both sides of the main frame. The invention can make the tarpaulin unfolded on the primary lining surface flat and close to the primary lining surface, which ensures the construction quality of the tarpaulin laying, improves the construction efficiency of the tarpaulin laying, and can determine the The binding positions arranged in the length direction of the tunnel can ensure the positioning accuracy of the hoop reinforcement.

Description

technical field [0001] The invention belongs to the technical field of tunnel construction, and in particular relates to a tarpaulin laying trolley. Background technique [0002] At present, in tunnel construction, when using a tarpaulin laying trolley to lay the tarpaulin, the traction device on the tarpaulin laying trolley drives the sliding trolley along the arc track from the right side of the tunnel cross section to the left side of the tunnel cross section Slide, so as to drive the rolled waterproof cloth to gradually unfold, and then the construction personnel will fix the unfolded waterproof cloth on the initial lining surface, that is, the laying of the waterproof cloth can be realized; however, the construction personnel need to use tools such as wooden sticks to manually unroll The waterproof cloth is pressed and tightly attached to the primary lining surface, and then the construction personnel spot-weld the waterproof cloth to the hot-melt gasket on the primary ...

AI Technical Summary

Problems solved by technology

[0002] At present, in tunnel construction, when using a tarpaulin laying trolley to lay the tarpaulin, the traction device on the tarpaulin laying trolley drives the sliding trolley along the arc track from the right side of the tunnel cross section to the left side of the tunnel cross section Slide, so as to drive the rolled waterproof cloth to gradually unfold, and then the construction personnel will fix the unfolded waterproof cloth on the initial lining surface, that is, the laying of the waterproof cloth can be realized; however, the construction personnel need to use tools such as wooden sticks to manually unroll The waterproof cloth is pressed and tightly attached to the primary lining surface, and then the construction personnel spot-weld the waterproof cloth to the hot-melt gasket on the primary lining surface. The degree of mechanization is low and the labor cost is high; after the waterproof cloth is laid, the waterproof cloth is used to The laying trolley is used as a platform, and the lining steel mesh is bound at the tunnel construction site. The construction personnel send the circumferential steel bars from the side of the tarpaulin laying trolley to the vault, control the position of the pre-embedded steel bars in the inverted arch, and use clamps to locate and control the corresponding The longitudinal spacing between two adjacent hoop reinforcements; the vertical spacing of the hoop reinforcements on the second lining and the two layers of hoops can be accurately controlled by using the interlayer connecting structural reinforcements, so as to ensure the accuracy of the hoop reinforcement position. The process of locating steel bars is complicated, and the problem of accumulation of positioning errors is prone to occur, resulting in poor positioning accuracy of circumferential steel bars, low construction efficiency, and high labor intensity; And a waterproof cloth laying trolley with a circumferential steel bar binding positioning device

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