Novel compound anti-clamping single-shield TBM and construction method thereof

Abstract

The invention discloses a novel compound anti-clamping single-shield TBM and a construction method thereof. The problem that an existing shield type TBM is high in crash risk and low in safety coefficient and cannot adjust the shield gesture easily is solved. The TBM comprises a cutter disc connected with a control system, a main driver, a front shield body and a rear shield body, the front shieldbody comprises an upper front shield and a lower front shield, the rear shield body comprises an upper rear shield and a lower rear shield, the upper front shield and the lower front shield are connected through a first lifting oil cylinder, the upper front shield is connected with the main driver through a second lifting oil cylinder, and the lower front shield is connected with the main driverthrough a third lifting oil cylinder; the upper rear shield and the lower rear shield are connected through a fourth lifting oil cylinder, a fifth lifting oil cylinder and a reducing oil cylinder. Thecrash of the single-shield TBM in a weak stratum can be avoided in various ways such as rapid lifting and expanding excavation of the cutter disc, dynamic supporting of the shield bodies, main driving steering and advance grouting. Meanwhile, shield body rolling correction can be achieved through main driving swinging, and therefore the single-shield TBM can be used in a hard rock stratum.

Description

technical field [0001] The invention relates to the technical field of underground construction, in particular to a novel composite anti-jamming single-shield TBM and a construction method thereof. Background technique [0002] Full Face Tunnel Boring Machine (TBM) is mainly used in the excavation of hard rock formations, and has a wide range of applications in urban rail transit, municipal administration, water diversion tunnels, railways, highways and other fields. TBM can be divided into open type TBM and shield type TBM according to the structural form, among which open type TBM mainly includes Kai type (double X support) TBM and main beam type TBM, and shield type TBM mainly includes double shield TBM and single shield type TBM. [0003] According to different geological conditions, the open TBM is mainly used in tunnels with good rock stability and a low proportion of weak surrounding rock, and the shield TBM is mainly used in tunnels with a large proportion of weak s...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies in the above-mentioned background technology, the present invention proposes a new type of composite anti-seize single-shield TBM and its construction method, which solves the problem of the shield-type TBM in the prior art having a high risk of machine jamming in large deformation, fractured and broken zone formations , low safety factor, and difficult adjustment of shield attitude

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