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Novel dual-mode TBM (tunnel boring machine) and control method thereof

A dual-mode, new type of technology, applied in earthwork drilling, wellbore lining, tunnel lining, etc., can solve problems such as inability to apply hard rock and smooth excavation, and achieve the effects of reducing construction risks, convenient control, and small construction interference

Active Publication Date: 2012-04-11
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the special working conditions of both hard rock and soft rock engineering geology in part of the line geology, TBM cannot be smoothly excavated in soft rock, and conventional EPB shields cannot be applied to hard rock conditions

Method used

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  • Novel dual-mode TBM (tunnel boring machine) and control method thereof
  • Novel dual-mode TBM (tunnel boring machine) and control method thereof
  • Novel dual-mode TBM (tunnel boring machine) and control method thereof

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Embodiment Construction

[0030] Below in conjunction with accompanying drawing, the present invention will be further described:

[0031] Such as figure 1 As shown in , the new dual-mode TBM is characterized in that it includes a cutterhead 1 and a shield system of several barrel sections connected to the cutterhead 1, and a main drive 4 and a pressure holding chamber 5 located in the shield system. The propulsion cylinder 7 is located at the screw conveyor 12, the segment assembly machine 10, the reaction force system and the advanced drilling rig 17;

[0032] Such as figure 1, the shield body system includes a front shield 2 connected to the cutter head 1, a middle shield 6 connected to the front shield 2, and a tail shield 8 connected to the middle shield 6; The stabilizer 3 and the stabilizer 3 have anti-vibration and anti-twist functions when changing tools under hard rock geological conditions; swing cylinders 18 are arranged at the lower left and right lower parts; the cutter head 1 is conn...

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Abstract

The invention discloses a novel dual-mode TBM (tunnel boring machine) and a control method thereof used for the field of tunnel shield and TBM construction. Two tunneling modes can be realized by the equipment. An EPB (Earth Pressure Balance) tunnel shield mode of soft rock tunneling is utilized when an excavated surface cannot be autostable; and a TBM mode of hard rock tunneling is utilized when the excavated surface is good in autostability; and the two modes are converted easily. According to the novel dual-mode TBM and the control method thereof disclosed by the invention, the problems that the traditional earth pressure balance tunnel shield is of limited use in encountering a complex rock soil stratum, the TBM does not adapt to a soft soil stratum and the like are solved; the two tunneling modes of hard rock and soft soil are realized, the advantages of two tunnel support technologies of segment erection and hole wall support are combined; the novel mixing type TBM which is integrated with a hard rock tunneler technology and a soft soil tunnel shield technology not only has a hard rock quick tunneling function but also has an excavated surface balancing function, so that the tunnel shield technology and the TBM technology are mutually integrated, the geological adaptation range of the equipment is broadened, the single tunneling equipment has wider geological adaptability, can effectively reduce the construction risk and is simple to operate and low in cost.

Description

technical field [0001] The invention belongs to the technical field of shield tunneling and TBM engineering, in particular to a novel dual-mode TBM (hybrid TBM) and a control method thereof. Background technique [0002] EPB Shield (Earth Pressure Balance Tunneling Machine) and TBM (Full Section Hard Rock Tunneling Machine) are a new type of advanced tunnel construction machinery that uses rotary cutters to excavate, simultaneously breaks the surrounding rock and excavates the tunnel, and forms a full-section tunnel. , is widely used in railway, water conservancy, electric power, nuclear power, transportation and other fields. It has many outstanding advantages such as fast, high-quality, safe, economical and environmental protection for engineering construction. It is the preferred construction scheme in tunnel construction. At present, related foreign shield tunneling and TBM technologies have basically matured, and the domestic ability to localize the entire set of techno...

Claims

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Application Information

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IPC IPC(8): E21D9/08E21D9/093E21D9/04E21D11/10
Inventor 李建斌张宁川赵华卓兴建袁文征贺飞
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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