Railway structure of 10000-ton movable portal crane

Abstract

The invention discloses a railway structure of a 10000-ton movable portal crane. The railway structure comprises reinforced concrete, a pre-burying plate, a rack, a pressing plate and two side blocking plates, wherein the reinforced concrete is paved below a railway; the pre-burying plate is pre-buried in the reinforced concrete; the upper surface of the pre-burying plate exposes the reinforced concrete and keeps flatness with the surface of the reinforced concrete; discontinuous heaves of the reinforced concrete form concrete abutments disjunctively distributed below the railway; and a railway transition bridge is arranged in a cavity formed between the adjacent concrete abutments. By utilizing the railway structure of the 10000-ton movable portal crane, shock vibration of a hoisting device does not exist in the movement process, and the movement resistance is small. Meanwhile, potential safety accident risk caused by subsidence of concrete abutments arranged below the railway can be effectively avoided by the railway structure.

Description

technical field [0001] The invention belongs to the technical field of oil drilling and development, and in particular relates to a track structure of a 10,000-ton movable gantry crane. Background technique [0002] The conventional construction method of the offshore drilling platform is to build in the dock, which is limited by the lifting capacity of the gantry crane used in the shipyard and the dock. The shipyard usually decomposes the offshore platform or large components into small modules for construction in the workshop first. The modules are transported to the dock for assembly, that is, they are stacked part by part in the way of building blocks. The disadvantages of this construction method are: 1) The dock is the most important production resource for the shipyard, and it occupies the dock for a long time, which affects the acceptance of the shipbuilding contract by the shipyard; 2) The platform construction period is long and the construction efficiency is low. ...

AI Technical Summary

Problems solved by technology

Although this track structure can guide the walking of the lifting equipment, it has the following disadvantages: due to the increase in the use time of the lifting equipment, the concrete abutment j05 will settle, and once two adjacent concrete abutments j05 When uneven settlement occurs between adjacent concrete piers (that is, there is a height difference between adjacent concrete piers), the track spanning two adjacent concrete piers j05 will deform in the horizontal direction

This deformation increases the impact force and resistance of the walking structure of the lifting equipment and the rack j04 when the lifting equipment moves; as time goes by, this deformation gradually increases, and even causes the bottom plate j01 and the rack j04 There is a risk of causing a major safety accident

Images