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Dual-thrust multi-cutter tunneling machine and tunneling method thereof

A tunnel boring machine and multi-cutter technology, which is applied in tunnels, tunnel linings, earthwork drilling, etc., can solve the problems of long time, heavy workload, and high cost, and achieve the effects of short time consumption, convenient operation, and reduced cost

Pending Publication Date: 2019-04-16
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Abstract
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Problems solved by technology

[0003] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a double-thrust multi-cutter tunnel boring machine and its tunneling method, which solves the problems of large workload, long time and high cost in the mode conversion of the dual-mode boring machine in the prior art

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  • Dual-thrust multi-cutter tunneling machine and tunneling method thereof
  • Dual-thrust multi-cutter tunneling machine and tunneling method thereof
  • Dual-thrust multi-cutter tunneling machine and tunneling method thereof

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Embodiment 3

[0028] Embodiment 3, a double-thrust multi-cutter tunnel boring machine, a tunnel boring method for a double-thrust multi-cutter tunnel boring machine, including a first propulsion mode and a second propulsion mode, the first propulsion mode is used for different conditions of surrounding rock In a good case, the excavation situation is the same as the conventional excavation method. The second propulsion mode is applicable when the surrounding rock conditions are good. The first propulsion mode includes the following steps: S1: the front knife driving device and the rear knife driving device drive the split cutter head to rotate, and excavate the tunnel face; S2: The segment assembly machine installs the precast concrete segment and supports the tunnel; S3: after a certain distance is excavated, the propulsion cylinder is stretched out, and the precast concrete segment is pushed forward; S4: during the excavation process, The slag is output through the slag discharge system;

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Abstract

The invention discloses a dual-thrust multi-cutter tunneling machine and a tunneling method thereof. The problems are solved that in the prior art, mode switching of a dual-mode tunneling machine is large in workload, long in time and high in cost. The dual-thrust multi-cutter tunneling machine includes a tunneling system, a segment splicing machine system and a slag discharging system; the tunneling system includes a shield, a cutter main body and an M-shaped beam, a plurality of split-type cutters are arranged at the front end of the cutter main body, and a segment splicing machine, an arc frame mounting device and a concrete spraying device are arranged on the M-shaped beam, wherein the arc frame mounting device is used for mounting a second thrust mechanism, the segment splicing machine is located in front of the arc frame mounting device, and the concrete spraying device is mounted in front of the arc frame mounting device; a thrust oil cylinder is arranged on the periphery of theouter ring of the M-shaped beam, and the split-type cutters correspond to the slag discharging system. According to the dual-thrust multi-cutter tunneling machine, the dual-thrust multi-cutter designis adopted; the split-type cutters replace a large cutter, the drive mode of the split-type cutters is correspondingly changed into an individual drive mode, and in this way, through the multi-cutterdesign, the cost of the cutters is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of tunnel excavation, in particular to a double-thrust multi-cutter tunnel boring machine and a tunneling method thereof. Background technique [0002] Full-face tunnel boring machine (TBM) is a large-scale tunnel boring equipment integrating mechanical, electronic, hydraulic, laser and other technologies. It plays an important role in the construction of mountain tunnels, water diversion projects and urban subways. TBM is divided into shield type TBM and open type TBM. The tunnel section excavated by TBM is generally circular. There are also some tunnels that use special-shaped sections in order to increase the utilization of tunnel space. However, due to the complex geological conditions in our country, it is inevitable to encounter both soil and rock in the construction of tunnels. Under this premise, a single hard rock or soft soil roadheader (EPB) can no longer meet the needs of construction. Therefor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/087E21D11/40E21D9/12E21D11/08E21D11/10
CPCE21D9/0873E21D9/124E21D11/08E21D11/10E21D11/40
Inventor 李建斌陶磊贺飞田彦朝宁向可
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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