Muddy water open-type dual-mode shield tunneling machine provided with normal-pressure cutterhead

Abstract

The invention provides a muddy water open-type dual-mode shield tunneling machine provided with a normal-pressure cutterhead. The muddy water open-type dual-mode shield tunneling machine provided with the normal-pressure cutterhead comprises a shield body, the normal-pressure cutterhead, a first deslagging device and a second deslagging device, wherein a muck cabin is formed between the normal-pressure cutterhead and the shield body; a slurry conveying port and a muck conveying port which are communicated with the muck cabin are formed in the bottom and the top of the muck cabin respectively; the slurry conveying port is connected with the first deslagging device in an on-off mode; the muck conveying port is connected with the second deslagging device in an on-off mode; when the dual-mode shield tunneling machine is in a muddy water mode, the muck conveying port is disconnected from the second deslagging device, the slurry conveying port is communicated with the first deslagging device, and muddy water in the muck cabin is discharged through the first deslagging device; and when the dual-mode shield tunneling machine is in an open mode, the slurry conveying port is disconnected from the first deslagging device, the muck conveying port is communicated with the second deslagging device, and muck in the muck cabin is discharged through the second deslagging device. According to the muddy water open-type dual-mode shield tunneling machine provided with the normal-pressure cutterhead provided by the invention, the technical problems that the shield tunneling machine is limited in application range, low in tunneling efficiency and high in construction cost are solved.

Description

technical field [0001] The invention relates to the technical field of tunnel construction using shield machines or TBMs, in particular to a mud-water open double-mode shield machine equipped with a normal-pressure cutter head. Background technique [0002] With the increasing use of tunnel engineering around the world, the demand for excavation equipment is also increasing. However, open TBM or pressure balanced shield equipment cannot meet the requirements of safe and efficient construction. For example: During the tunnel forming process of the mountain tunnel, when encountering strata with multiple faults and / or strata with high water and soil pressure, the conventional open TBM cannot meet the requirements of the project. However, when using conventional mud-water shield machine, when other full-section rock formations are long-distance excavation, there will be disadvantages such as low excavation efficiency and high construction cost, and the use effect is not good. ...

AI Technical Summary

Problems solved by technology

However, open TBM or pressure-balanced shield equipment cannot meet the requirements of safe and efficient construction

For example: in the tunnel forming process of a mountain tunnel, when encountering strata with multiple faults and / or strata with high water and soil pressure, the conventional open TBM cannot meet the requirements of the project, but if to deal with the construction risk of faults , while using conventional mud-water shield machines, when other full-face rock formations are excavated for long distances, there will be disadvantages such as low excavation efficiency and high construction costs, and the use effect is not good

[0003] In view of the limited application range of shield machines in related technologies, low tunneling efficiency and high construction costs, no effective solutions have been given so far

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