Novel TBM and construction method thereof

A new type of cutterhead technology, which is applied in earthwork drilling, mining equipment, tunnels, etc., can solve problems such as low excavation efficiency and cutterhead wear, and achieve the effects of improving excavation efficiency, reducing wear, and improving auxiliary rock breaking efficiency

Active Publication Date: 2020-11-20
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the above-mentioned background technology, the present invention proposes a new type of TBM and its construction method, which solves the problems of low driving efficiency and serious cutter head wear when TBM excavates hard rock in the prior art

Method used

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  • Novel TBM and construction method thereof
  • Novel TBM and construction method thereof
  • Novel TBM and construction method thereof

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Embodiment 4

[0048] Embodiment 4: a kind of construction method of novel TBM as described in embodiment 3, the steps are as follows:

[0049] S1: During the excavation process of the cutter head 2, the anchor drill splitting device 1 is retracted into the cutter head 2, and the opening and closing sealing device 3 is closed; that is, when the drilling machine is in the initial position, the anchor drill splitting device is installed in the axial direction of the cutter head inside the hole, such as Figure 7 shown;

[0050] S2: When the TBM is shutting down for support and segment assembly, the opening and closing sealing device 3 is opened, and the anchor drill splitting device 1 is driven forward by the sliding drive device 103 from the axial installation hole 202 of the cutter head 2 ;like Figure 8 shown;

[0051] S3: The anchor-drill device 101 of the anchor-drill splitting device 1 drills a hole on the face. After the drilling is completed, the splitting device 102 of the anchor-d...

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Abstract

The invention discloses a novel TBM and a construction method thereof. The problems of low tunneling efficiency and serous wear to a cutterhead when a TBM is used for excavating hard rocks in the prior art are solved. The novel TBM comprises a tunneling mainframe and a rear supporting system. The tunneling mainframe comprises a cutterhead. The cutterhead is a master driver arranged in the tunneling mainframe. The cutterhead is provided with an excavation tool and an anchor drilling and splitting device used for conducting anchor drilling and splitting to assist in rock breaking. The novel TBMintegrates the functions of a jumbolter and a hydraulic splitting rod, drilling holes in a tunnel face through an anchor drilling device, bursts the drilled holes through the splitting device, conducts anchor drilling and splitting to drill and break the hard rocks on the tunnel face in advance of the cutterhead, then conducts excavation on the drilled and broken tunnel face through the cutterhead, reduces wear to the excavation tool and improves the excavation efficiency.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a novel TBM and a construction method thereof. Background technique [0002] Rock tunnel boring machine (TBM) is a large-scale tunnel excavation equipment integrating mechanical, electronic, hydraulic, laser and other technologies. It plays an important role in the construction of mountain tunnels and urban subway projects. However, when encountering high-strength rocks, such as granite, marble, etc., the efficiency of TBM excavation decreases significantly, and the loss of tools is huge, and the construction cost increases. And existing excavation equipment such as application number is a kind of excavation anchor drill integrated hard rock roadheader of CN201410760991.3 and application number is a kind of composite splitting machine of CN201711130728.6 and can be used for the excavation of hard rock, but with existing The integration of TBM is poor. How to use anch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/11E21D9/10E21D20/00
CPCE21D9/11E21D9/10E21D20/003
Inventor 姜礼杰钱豪原晓伟王一新
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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