Construction apparatus of double-block ballastless track and construction process

Abstract

The invention discloses construction equipment and a construction process for a double block type unballasted track, belonging to the railway track construction field. The construction equipment comprises combined type track panels which are matched to use, a proper motion type paver, a multifunctional electric control lifting device, a movable type mechanical sleeper distribution assembly platform and a shunting swing bridge; under the conditions of meeting the construction quality and the construction efficiency, the construction equipment has the advantages of small number of device categories, simple equipment operation, high construction efficiency and low cost of the outfit. The construction process comprise the following steps: the transverse template mounting, the sleeper distribution and the track panel assembly, the coarse adjustment of track panels, the track bed reinforcing fabric seizing and the grounding welding, the connection and the accurate adjustment of the track panels, the vertical template mounting, the track bed concrete pouring and the surface finishing and forming, the curing and the track panel disassembly, reentering the circle; the process has the advantages of simple process and fast speed; therefore, the invention can completely meet requirements of high standard, high accuracy and high efficiency in the construction of the unballasted track.

Description

technical field [0001] The invention belongs to the field of railway track construction, and in particular relates to construction equipment and construction technology of a double-block ballastless track. Background technique [0002] In order to meet the requirements of high-speed railways for track structure, the structural form of ballastless track has been widely used abroad. Drawing on foreign advanced technology, our country is gradually using ballastless track technology in the construction of railway network. [0003] 1. Types and applications of domestic ballastless track: [0004] There are three types of ballastless track in China: elastic support block type, track slab type and embedded bolster type. Among them, the elastic support block ballastless track is mainly used in tunnels, and has been laid in long tunnels such as Xikang Line, Ningxi Line, and Lanwu Line, with a total laying length of 120km. The two types of track slab type and pre-buried bolster typ...

AI Technical Summary

Problems solved by technology

[0005] The construction equipment and construction procedures of the three ballastless tracks are still in the exploration process and trial laying stage

Since the construction process takes up a lot of equipment, and the large construction site requires a dedicated logistics channel, it can only be constructed in sequence, and parallel construction cannot be achieved, and the construction progress is slow.

[0009] Therefore, although the construction process of the three imported ballastless tracks uses large-scale supporting units for mechanized operations, which has the advantages of clear procedures and fast progress, special logistics channels are required during construction and there are various types of large-scale supporting units used. Due to the disadvantages of complex technology and expensive equipment, the construction conditions and cost performance required by it have formed an important influencing factor that cannot be ignored in the overall promotion of our country, and it is difficult to popularize and adopt

[0010] To sum up, as far as the several ballastless tracks currently used in my country are concerned, they all have the advantages of novel structure, beautiful appearance, less maintenance, strict dimensions of each part, and high quality standards. It determines that the construction enterprise should have superb construction ability, and the construction ability is mainly reflected in the advanced degree of construction equipment.

Images