Transporting technology of large-span structural sheet

Abstract

A transporting technology of a large-span structural sheet comprises the following steps: 1, prefabricating the large structural sheet; 2, laying a plurality of hydraulic jacking devices at a jacking point below the large structural sheet; 3, after jacking the large structural sheet to an appointed height, mounting a temporary support below the large structural sheet; 4, connecting a transporting framework with a trolley axis of a self-powered hydraulic flat car; 5, driving the self-powered hydraulic flat car below the large structural sheet, and after jacking the large structural sheet, transporting the large structural sheet out of a workshop to an advanced outfitting site; 6, driving the self-powered hydraulic flat car away, and supporting by the temporary support; 7, driving the self-powered hydraulic flat car below the large structural sheet, and after jacking the large structural sheet, transporting the large structural sheet to a spraying workshop; and 8, after finishing spraying the large structural sheet, transporting the sprayed large structural sheet out of the spraying workshop to an assembly site, and carrying out assembly operation. The transporting technology solves the problem that the existing site transporting vehicle cannot realize the transporting operation of the large-span structural sheet and realizes safe and efficient transporting operation.

Description

technical field [0001] The invention relates to a transport process, in particular to a transport process for a large-span structural piece of an onshore liquefied natural gas module. It belongs to the field of offshore oil engineering. Background technique [0002] During the construction of a large-scale LNG modular processing plant, due to the similar structure and weight of the central pipe gallery modules, in order to achieve integrated clean construction, usually, a deck is divided into several structural pieces according to the span of its axis. In this way, the more structural pieces, the greater the workload of final assembly and the extension of the construction period. Therefore, in the process of module construction, the workload of workshop prefabrication should be increased as much as possible to reduce the workload during final assembly. However, new problems arise from this. Since the structural fragments have more hinge nodes and the span of the fragments i...

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Problems solved by technology

[0003] The main purpose of the present invention is to overcome the above-mentioned shortcomings existing in the prior art, and provide a transport process for large-span structural pieces, which can not only realize the transportation of multi-articulated, long-span structural pieces, but also solve the problem of the existing field transportation vehicles. The transportation operation problem of large-span structural pieces cannot be realized; moreover, in the transportation process, the transportation mode of partial axes is replaced by the transportation frame, which greatly reduces the investment of the axes, saves the resources of the axis of the trolley, and thus saves the cost of automatic power hydraulic flatbed trucks. In addition, it also realized safe and efficient transportation operations, improved the logistics efficiency of site structural sheet transportation, and greatly shortened the construction period while reducing transportation costs

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