Extremely low-level transportation of super-high and large-scale equipment across bridges and culverts

Abstract

The invention discloses a construction method for transporting ultrahigh large-scale equipment to pass through a bridge and culvert in an extreme low location. The ultrahigh large-scale equipment is fixed on a transporting plate trailer with the adoption of a stepped transporting saddle. The construction method comprises a first step of installation of a bearing structure, a second step of unloading, a third step of location lowering, a fourth step of sliding and a fifth step of secondary loading. The first step further comprises the following steps of (1) paving load parting beams, (2) paving sliding tracks on the load parting beams, and paving teflon blocks in the sliding tracks, (3) paving sliding beams on the teflon blocks. The second step further comprises the flowing steps of (1) installing a combined type bearing supporting beam on the sliding beams, (2) using the combined type bearing supporting beam for supporting the stepped transporting saddle. The third step further comprises the following step of using the method that a sync jack-up jack group and the combined type bearing supporting beam are alternately lowered, and lowering the stepped transporting saddle onto the sliding beams, wherein the stepped transporting saddle tightly attaches to the ground at the moment. The fourth step further comprises the following step: using a push-and-pull jack to drive the sliding beams to move forwards until the equipment is completely moved out of the bridge and culvert. According to the construction method for transporting the ultrahigh large-scale equipment to pass through the bridge and culvert in the extreme low location, the ultrahigh large-scale equipment can pass through the bridge and culvert in the extreme low location, and the purpose of transportation is achieved.

Description

technical field [0001] The invention relates to a transportation method, in particular to a construction method for extremely low-level transportation of ultra-high and large-scale equipment across bridges and culverts. Background technique [0002] At present, the manufacturing of large-scale ultra-high pressure reactor vessels in China has very strict requirements on the assembly and welding environment, and it is difficult to guarantee the quality of on-site welding. This requires that the equipment must be welded in the manufacturing plant. In the case of the height limit of the transportation road, the overall transportation from the manufacturing plant to the site cannot be realized. The previous methods usually include on-site welding after section transportation or construction of temporary welding workshops on site. After the equipment is transported to the site in sections, the welding quality of the assembly is difficult to guarantee, and the construction of a tem...

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Problems solved by technology

[0002] At present, the manufacturing of large-scale ultra-high pressure reactor vessels in China has very strict requirements on the assembly and welding environment, and it is difficult to guarantee the quality of on-site welding, which requires that the equipment must be welded in the manufacturing plant

In the case of the height limit of the transportation road, the overall transportation from the manufacturing plant to the site cannot be realized. The previous methods usually include on-site welding after section transportation or construction of temporary welding workshops on site.

After the equipment is transported to the site in sections, it is difficult to guarantee the welding quality of the assembly, and the construction of a temporary welding workshop on site will inevitably lead to an increase in construction costs

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