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

A new type of technology with double shields, applied in earth-moving drilling, mining equipment, tunnels, etc., can solve the problems of low work efficiency, high risk of jamming, single construction mode, etc., to improve work efficiency, widen application prospects, expand Effects in the field of application

Pending Publication Date: 2018-07-17
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies in the above-mentioned background technology, the present invention proposes a novel composite anti-jamming double-shield TBM and its construction method, which solves the problems in the prior art that the double-shield TBM jamming risk is high, the construction mode is single, and the work efficiency is low

Method used

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  • Novel compound anti-clamping dual-shield TBM and construction method thereof
  • Novel compound anti-clamping dual-shield TBM and construction method thereof
  • Novel compound anti-clamping dual-shield TBM and construction method thereof

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Embodiment 2

[0032] Embodiment 2, a new composite anti-jamming double-shield TBM, the telescopic outer shield 7 includes four shield bodies, the four shield bodies are connected end-to-end through four sets of variable-diameter oil cylinders 19 to form a cylindrical shape, and the telescopic outer shield is hinged The oil cylinder 6 is connected with the support shield 9, the telescopic inner shield 8 is located inside the telescopic outer shield 7, the telescopic inner shield 8 and the telescopic outer shield 7 are concentrically arranged, the telescopic outer shield slides along the telescopic inner shield, and the telescopic outer shield can be realized through a variable-diameter oil cylinder The reduced diameter improves the passability of the double-shield TBM in unfavorable geology such as weak surrounding rocks with large deformation and fractured zones.

[0033] Further, the main drive 2 is provided with a main push cylinder 5 along the circumference, one end of the main drive 5 is...

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Abstract

The invention discloses a novel compound anti-clamping dual-shield TBM and a construction method thereof. The problem that an existing dual-shield TBM is large in crash risk and single in constructionmode is solved. The TBM comprises a cutter disc, a front shield, a supporting shield and a tail shield, the cutter disc is arranged at the front end of the front shield and connected with a main driver arranged on a shield body, the rear end of the front shield is connected with the supporting shield, an outer stretchable shield and an inner stretchable shield are arranged on the supporting shield, the inner stretchable shield is fixedly connected with the main driver, the outer stretchable shield is movably connected with the main driver, a supporting boot and a double crossed shaped beam are arranged inside the supporting shield, the tail shield is fixedly connected with the double crossed shaped beam, a segment erector and an advance drilling machine are connected to the double crossedshaped beam, the advance drilling machine is located above the segment erector, and an advance grouting tube is arranged at the upper portion of the supporting shield. The crash of the dual-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, advance detection and advance grouting. The TBM is good in trafficability characteristic and high in working efficiency.

Description

technical field [0001] The invention relates to the technical field of underground construction, in particular to a novel composite anti-jamming double-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...

Claims

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Application Information

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IPC IPC(8): E21D9/06E21D9/08E21D9/093
CPCE21D9/0607E21D9/0621E21D9/0642E21D9/08E21D9/093Y02E10/20
Inventor 宁向可卓兴建张宁川李龙飞肖波栾保成董岳
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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