Construction method of monolithic track bed of assembled rail weighbridge

Abstract

The invention provides a construction method of a monolithic track bed of an assembled rail weighbridge. The construction method comprises the following steps: 1) prefabricating concrete modules corresponding to four different functional areas of a monolithic track bed in a factory; 2) excavating foundation pits according to the sizes and positions of the four different concrete modules; 3) hoisting the prefabricated concrete modules into the corresponding foundation pits for assembly; (4) connecting all the concrete modules into a whole in a steel bar sleeve grouting mode, and backfilling earthwork after grouting is completed; and 5) mounting a rail weighbridge weighing body, laying rails and loading ballasts. The monolithic track bed is divided into a plurality of components according tothe functional areas of a transition area I, a transition area II, a transition area III and a weight measuring area, is prefabricated in advance in batches by adopting a special process, and is finally transported to a site to be assembled, so that site multi-procedure construction is overcome, the site construction time is greatly shortened, the operation efficiency is improved, and a factory-like construction operation mode is realized in a real sense.

Description

technical field [0001] The invention belongs to the technical field of ballast bed construction, and in particular relates to an integral ballast bed construction method of an assembled track scale. Background technique [0002] Rail scales are used as weighing instruments for weighing railway freight vehicles. Widely used in factories, mines, metallurgy, foreign trade and railway departments to weigh bulk goods on trucks. Track scales are divided into three types: static track scales, dynamic track scales and light track scales. Their load-bearing platforms must be installed on the railway line. In order to ensure the accuracy of weighing and measurement, the ballast-free integral ballast bed must be used for the track bed where the track scale load-bearing platform is located, and transition sections are set at both ends for the ballastless integral ballast bed. Transition to ballasted ballast bed or ballasted ballast bed to ballastless monolithic ballast bed. Take the ...

AI Technical Summary

Problems solved by technology

[0004] However, there are certain technical limitations in the existing above-mentioned monolithic ballast bed construction method:

Among them, formwork installation is subdivided into cushion formwork installation, base formwork installation, ballast bed formwork installation, in addition to the positioning, initial adjustment, and fine adjustment of long sleepers; formwork teams and track teams work crosswise, and at the same time, process connection must also be considered Therefore, according to the existing construction method, the organization is cumbersome and the construction period is long. If the working space is small, casualties are likely to occur

[0007] 2. Existing railway trains have great interference with construction

[0008] If there are existing railway trains passing on both sides of the track scale construction area of ​​the existing construction method, the construction personnel and equipment installed on the outer formwork will be exposed near the train running passage, endangering traffic safety, and easily causing traffic accidents, casualties, etc.; in addition, The concrete vibrating operation during the on-site pouring of the track bed concrete, pulling out and inserting the vibrating rods, is easy to invade the railway boundary, endangering the safety of traffic

[0009] 3. On-site formwork, reinforcement, pouring, long construction period and large construction investment

Therefore, the construction period is longer, more skilled workers are invested, and labor costs are higher

[0011] 4. There are many waste materials and garbage generated during construction, which is not conducive to environmental protection

For example, the process of binding steel bars will produce discarded wires and pads; the process of formwork installation will produce waste steel bars and their matching nut washers, and waste outrigger wood for fixing formwork; oil stains generated by painting formwork; Surface laitance, etc.; if it is not cleaned and transferred in time after the construction is completed, it will pollute the railway station, and then pollute the nearby residential areas, which is not conducive to environmental protection

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