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Tunnel excavation face stability experiment equipment and method considering shield cutter head influence

A technology of shield cutter head and experimental equipment, which is applied in the field of shield tunneling, and can solve problems such as the inability to restore the boundary conditions of shield tunneling, the inability to accurately determine the limit support pressure of the excavation surface, and the hidden dangers of construction safety.

Active Publication Date: 2022-03-25
BEIJING JIAOTONG UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] At present, the excavation surface stabilization method of the shield machine in the prior art does not consider the cutting disturbance effect of the cutter head, and cannot restore the real shield construction boundary conditions, and cannot accurately determine the ultimate support pressure of the excavation surface, thus causing serious damage to the construction. Hidden dangers in safety

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  • Tunnel excavation face stability experiment equipment and method considering shield cutter head influence
  • Tunnel excavation face stability experiment equipment and method considering shield cutter head influence
  • Tunnel excavation face stability experiment equipment and method considering shield cutter head influence

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Embodiment Construction

[0040] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0041] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be understoo...

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Abstract

The invention provides a tunnel excavation face stability experiment device and method considering shield cutterhead influence, the tunnel excavation face stability experiment device comprises an integral frame part, a shield system, a cutterhead power control system, a soil bin plate power control system and a monitoring system.The integral frame part comprises a test box, a protective cover, a working face, a workbench I and a workbench II; the shield system comprises a cutterhead, a tunnel, a flange and a soil bin plate, the cutterhead power system comprises a transmission shaft, a speed reducer II, a motor II and a frequency converter II, the soil bin plate power control system comprises a push rod, a reaction frame, a bearing platform, a ball screw, a guide rail, a speed reducer I, a motor I and a frequency converter I, and the monitoring system comprises a laser ranging device and a spoke type force sensor. The equipment can analyze the stability of the excavation face under the action of a shield dynamic cutterhead and determine the limit support pressure required for maintaining the stability of the excavation face, so that the stability of the excavation face during shield tunneling construction can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of shield tunneling, in particular to an experimental device and method for stabilizing a tunnel excavation surface considering the influence of a shield cutterhead. Background technique [0002] In recent years, the construction of my country's urban rail transit has continued to heat up, so the demand for shield machines as modern and mechanized construction equipment has also continued to grow. The stability of the excavation surface is the key to ensure the construction safety and construction quality of the shield machine during the excavation process. Under actual construction conditions, the disturbance of the excavation surface caused by the cutting of the soil by the cutterhead of the shield machine is inevitable and cannot be ignored. . [0003] At present, the excavation surface stabilization method of the shield machine in the prior art does not consider the cutting disturbance effect of the cut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24G01M99/00
CPCG01N33/24G01M99/005
Inventor 金大龙袁大军李兴高向路玖刘腾
Owner BEIJING JIAOTONG UNIV
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