Arc-shaped steel plate carrier vehicle for water delivery tunnel

Abstract

The invention discloses an arc-shaped steel plate carrier vehicle for a water delivery tunnel, and belongs to the technical field of construction. The arc-shaped steel plate carrier vehicle comprises a vehicle frame, a front wheel pair, a rear wheel pair, a front axle and a rear axle. A fixed support is arranged in the middle of the vehicle frame, a hydraulic oil cylinder is arranged on the fixed support, and a telescopic support is connected to a piston of the hydraulic oil cylinder. The upper portions of the two ends of the vehicle frame are respectively provided with a pair of positioning columns, lifting racks are arranged at the two ends of the vehicle frame, and limiting clamps are arranged at the ends of the lifting racks. Position adjusting piles are arranged at the ends of the lifting racks, the positioning adjusting piles are connected with chain blocks, and the other ends of the chain blocks are connected with the outer sides of the positioning columns through hand-drive blocks. A rotating table is arranged on the upper portion of the center of the front axle, and a telescopic traction rod is arranged on the front axle. The arc-shaped steel plate carrier vehicle solves the transportation problem of arc-shaped steel plates in a hole, the completeness of a reinforcing steel plate is guaranteed, and the construction speed of stick steel reinforcing in the hole is improved. It can be guaranteed that all steel plates are free of welded joints, entire block transportation is achieved, the steel plates are not deformed in the transportation process, the construction quality is guaranteed, mounting is convenient, and the risk of reworking in the mounting process is avoided.

Description

technical field [0001] The invention relates to construction equipment, in particular to material transport equipment in small-diameter tunnels for water conservancy and hydropower, and belongs to the technical field of construction. Background technique [0002] At present, in the concrete bonded steel reinforcement construction of water conservancy and hydropower engineering tunnels, especially the concrete bonded steel reinforcement construction of the underground small-diameter water conveyance tunnel forming the lining arch, a new reinforcement method is used for reference. The bridge is reinforced by sticking carbon fiber cloth (it is rarely used as a reinforcement by sticking steel plates out of bridges), and it is necessary to use arc-shaped steel plates (with a diameter of 7.0m, a processed arc length of 6.067-6.894m, a chord height of 1.75-2.892m, thickness of 14-25mm) into the tunnel, due to the narrow space in the tunnel, the tunnel branch is only 3.5m high and t...

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Problems solved by technology

[0002] At present, in the concrete bonded steel reinforcement construction of water conservancy and hydropower engineering tunnels, especially the concrete bonded steel reinforcement construction of the underground small-diameter water conveyance tunnel forming the lining arch, a new reinforcement method is used for reference. The bridge is reinforced by sticking carbon fiber cloth (it is rarely used as a reinforcement by sticking steel plates out of bridges), and it is necessary to use arc-shaped steel plates (with a diameter of 7.0m, a processed arc length of 6.067-6.894m, a chord height of 1.75-2.892m, thickness of 14-25mm) into the tunnel, due to the narrow space in the tunnel, the tunnel branch is only 3.5m high and the tunnel floor is only 3.1m wide, the tunnel does not have the driving conditions for ground transportation equipment (the total length of the tunnel is 4250m, the tunnel only can travel in one direction); and the arc-shaped steel plate has many manufacturing processes and the arc length changes greatly, and the processing conditions are not available in the hole. According to the existing method, the entire arc-shaped steel plate can only be cut into several sections, and then divided by battery bicycles. In the block transportation hole, the steel plates are assembled and welded into a whole in the hole. After the welding is completed, each seam is subjected to non-destructive testing, which leads to low construction efficiency, heavy workload, reduced steel plate reinforcement efficiency, and prolonged construction period. At the same time, the steel plate is damaged. The anti-corrosion performance of the surface increases the follow-up work and construction cost

[0003] At present, in the concrete bonded steel reinforcement construction of water conservancy and hydropower engineering tunnels, especially the concrete bonded steel reinforcement construction of the underground small-diameter water conveyance tunnel forming the lining arch, a new reinforcement method is used for reference. The bridge is reinforced by sticking carbon fiber cloth (it is rarely used as a reinforcement by sticking steel plates out of bridges), and it is necessary to use arc-shaped steel plates (with a diameter of 7.0m, a processed arc length of 6.067-6.894m, a chord height of 1.75-2.892m, thickness of 14-25mm) into the tunnel, due to the narrow space in the tunnel, the tunnel branch is only 3.5m high and the tunnel floor is only 3.1m wide, the tunnel does not have the driving conditions for ground transportation equipment (the total length of the tunnel is 4250m, the tunnel only can travel in one direction); and the arc-shaped steel plate has many manufacturing processes and the arc length changes greatly, and the processing conditions are not available in the hole. According to the existing method, the entire arc-shaped steel plate can only be cut into several sections, and then divided by battery bicycles. In the block transportation hole, the steel plates are assembled and welded into a whole in the hole. After the welding is completed, each seam is subjected to non-destructive testing, which leads to low construction efficiency, heavy workload, reduced steel plate reinforcement efficiency, and prolonged construction period. At the same time, the steel plate is damaged. The anticorrosion of the surface increases the follow-up work and increases the cost

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