Track transportation system for subway shield tunnel quick slag tapping

Abstract

The invention discloses a track transportation system for subway shield tunnel quick slag tapping. The track transportation system for subway shield tunnel quick slag tapping comprises a switching track fixedly installed in a shield tunnel, and further comprises multiple sections of first tracks and second tracks which are arranged in parallel at intervals and a transverse track moving device slidably installed in a shield shaft, and each first track and the corresponding second track are adjustably connected with the switching track through a turnout; the transverse track moving device comprises transverse tracks, transverse moving brackets, longitudinal tracks and a hydraulic jack, the transverse tracks are fixed to a bottom plate of the shield shaft, and the transverse moving brackets are slidably supported on the transverse tracks; the longitudinal tracks adjustably connected with the first tracks and the second tracks are fixedly installed on the tops of the transverse moving brackets; and the hydraulic jack used for providing transverse moving power for the transverse moving brackets is fixedly installed on the side wall of the shield shaft. According to the track transportation system, the connecting total length of track cars does not need to be taken into account, the effect that full-load track cars and no-load track cars simultaneously run can be achieved, and the muck transportation efficiency can be improved to the maximum limit within the limited shield shaft horizontal depth range.

Description

technical field [0001] The invention relates to the technical field of subway construction, and relates to a slag discharge system for the construction of a superimposed line tunnel and a separate starting tunnel, in particular to a rail transportation system for rapid slag discharge of a subway shield tunnel. Background technique [0002] With the rapid development of the country's economy and the continuous acceleration of urbanization, urban rail transit has also achieved unprecedented development. Shield method construction has become the preferred construction method for urban subway construction due to its safety and high efficiency. Due to various restrictions on ground traffic and the distribution of buildings and structures in various cities, the design of superimposed subway tunnels is becoming more and more extensive. Due to the characteristics of the subway line and the complexity of the overall construction organization, the split start of shield tunnel construc...

AI Technical Summary

Problems solved by technology

[0003] At present, in the simultaneous construction of two lines of stacked tunnels and the construction of separate shield tunnels in complex environments, rail cars are often used to transport construction muck back and forth on single rails. However, due to the limited horizontal depth of shield wells, the total length of rail cars is severely limited. Moreover, empty-load and full-load rail cars cannot run at the same time, which makes the transportation efficiency of this method low, the construction period is long, and it cannot meet the construction requirements of high-efficiency and low-cost transportation of muck.

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