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tunnel boring machine

A technology for tunnel boring machines and cutting tools, applied in tunnels, force/torque/work measuring instruments, instruments, etc., can solve problems such as damage to the driving part of the cutter head and abnormal wear of the cutter head.

Inactive Publication Date: 2020-02-28
UNDERGROUND INFRASTRUCTURE TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The generation of unbalanced load will mainly cause damage to the cutter head and the driving part of the cutter, and abnormal wear of the cutter head (excavation edge), etc.

Method used

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Experimental program
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no. 1 approach

[0038] refer to Figure 1 to Figure 5 , the overall structure of the tunnel boring machine 1 in the first embodiment of the present invention will be described.

[0039]The tunnel boring machine 1 includes a cutterhead 11 constituting an excavation surface, a cutter column 12 , a turntable 13 , and a cutter drive unit 14 . In the first embodiment, an example in which the tunnel boring machine 1 adopts the intermediate support method as the support method for the cutterhead 11 is shown in the medium to large diameter category. In the intermediate support system, the cutterhead 11 is attached to a circular-shaped turntable 13 driven to rotate through a leg portion (tool column 12 ) extending in the rotation axis direction (X direction). The turntable 13 is rotatably supported around a rotation axis via a bearing 17 provided on a partition wall (partition plate) 16 of the front body 15 . The tool column 12 is an example of the "tool supporting part" of the present invention.

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no. 2 approach

[0099] Next, refer to Figure 12 (A) in and Figure 12 In (B), a tunnel boring machine according to a second embodiment of the present invention will be described. In the second embodiment, unlike the above-mentioned first embodiment showing an example of measuring the strain of the tool column 12 of the tunnel boring machine 1 of the intermediate support type, the measurement of the central axis 112 of the tunnel boring machine 1a of the central shaft support type Strain examples are described. In addition, in 2nd Embodiment, the same code|symbol is attached|subjected to the same structure as said 1st Embodiment, and the description is abbreviate|omitted.

[0100] In the second embodiment, the tunnel boring machine 1a such as Figure 12 (A) in and Figure 12 As shown in (B) in the figure, an example of a small-to-medium-diameter type using a center shaft support method as a support method for the cutter head 111 is shown. In the center shaft support system, the cutter he...

no. 3 approach

[0117] Next, refer to Figure 14 (A) in and Figure 14 In (B), a tunnel boring machine according to a third embodiment of the present invention will be described. In the third embodiment, unlike the above-mentioned first and second embodiments which show an example of measuring the force acting on the cutter head 111 in the direction of the rotation axis (X direction), the measurement of the rotation acting on the cutter head 111 An example of force in the direction (B direction or C direction) will be described. In addition, in 3rd Embodiment, the same code|symbol is attached|subjected to the same structure as said 2nd Embodiment, and description is abbreviate|omitted.

[0118] The tunnel boring machine 1b of the third embodiment is as follows Figure 14 (A) in and Figure 14 (B) in the figure shows an example in which a central shaft support method is adopted, and is structurally the same as that of the above-mentioned second embodiment. In the third embodiment, the ins...

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Abstract

The present invention provides a tunnel boring machine (1), comprising: a cutterhead (11), a cutter supporting part (12), a cutter driving part (14), a rotation position detecting part (20), a strain sensor (22), and Data processing unit (23). The data processing unit (23) acquires the force acting on the cutter head corresponding to the position of the cutter head in the rotational direction based on the detection results of the strain sensor and the rotational position detection unit.

Description

technical field [0001] The invention relates to a tunnel boring machine, in particular to a tunnel boring machine equipped with a cutter head. Background technique [0002] Conventionally, a tunnel boring machine equipped with a cutterhead is known. For example, Japanese Patent No. 2738897 discloses such a tunnel boring machine. [0003] Japanese Patent No. 2738897 discloses a tunnel boring machine including a cutterhead, an intermediate beam supporting the cutterhead, and a cutter drive unit for driving the cutterhead and the intermediate beam to rotate. The tunnel boring machine performs tunneling by rotating a cutter head with a cutter driving unit and advancing with thrust of a push jack. [0004] In excavation using a tunnel boring machine, it is possible to roughly grasp the geological conditions of the excavation route by means of prior borehole detection, etc., but it is difficult to accurately know unexpected buried objects and changes in strata in advance. There...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/11E21D9/087E21D9/093
CPCE21D9/1093G01L1/22E21D9/112G01L5/12E21D9/093E21D9/003E21D9/0692E21D9/11E21D9/0879
Inventor 冈田利幸岩室贵之
Owner UNDERGROUND INFRASTRUCTURE TECH CORP