Combined type double-shield tunneling machine

Abstract

The invention discloses a combined type double-shield tunneling machine which comprises a cutter, an anterior shield, a cab, a main driving device, an inside-and-outside stretching shield, a V-shaped arrangement main propelling system, a hinge system, a supporting shield, a boot supporting system, a tail shield, an auxiliary propelling system, a dual-mode deslagging system, an integration supporting system and the like. Four working modes including of the double shielding modes including the support boot and segmental lining mode and the support boot and anchor-plate timbering mode, the single shielding mode and the ERB mode can be achieved, and efficient tunneling, efficient deslagging and efficient timbering are achieved under the hard rock, sandy soil and soft soil geological conditions. The combined type double-shield tunneling machine has the outstanding advantages that one device can meet various complex-geology tunneling construction requirements, the geology applicability of the tunneling machine is greatly improved, the frequency of tunneling machine replacement in tunnel construction is decreased, and production efficiency is greatly improved.

Description

technical field [0001] The invention relates to mechanical equipment, in particular to a composite double-shield tunnel boring machine. Background technique [0002] At present, roadheaders are widely used in excavation sites of tunnel structures such as subway tunnels and mountain tunnels. According to different excavation geology, roadheaders are divided into: earth pressure balance roadheader (abbreviation: EPB) and full-face hard rock roadheader. (abbreviation: TBM); earth pressure balance roadheader is used for tunneling soft soil or sandy soil, while full-face hard rock roadheader is used for tunneling hard rock geology. Full-face hard rock tunnel boring machines usually have two types: open type and shield type, and the shield type can be divided into single shield and double shield types. The biggest feature of the double-shield TBM is that it can realize the cross-operation of excavation and tunnel lining, and it can also work in single-shield mode when the geologi...

AI Technical Summary

Problems solved by technology

At the same time, many domestic enterprises have carried out research and development of roadheader equipment and related technologies, designed and developed applicable roadheaders and related construction technologies, and manufactured various forms of roadheaders, but the current roadheaders can only be used It is not suitable for areas with low requirements on the surrounding environment and single geological conditions, and is not suitable for areas with dense buildings, complex pipelines, and complex geological conditions.

In the construction and use: the cutterhead cutter cannot be replaced; the propulsion system and the anti-twist system cannot be combined and occupy a large space; the position of the muck discharge port is relatively high; the segment assembly machine, the advanced drilling machine, and the anchor drilling machine occupy a large space , leading to an increase in the overall length of the roadheader, which is not suitable for the problem of small starting space for urban subway construction; when lining segments in TBM mode, it is easy to enter the gap between the outer side of the tail shield and the surrounding rock when spraying pea gravel and grouting

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