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Double-shield TBM getting stuck prevention method

A technology of double shield and anti-jamming machine, which is applied in earth-moving drilling, mining equipment, tunnels, etc., can solve the problems of double-shield TBM easy-jam machine, etc., so as to improve the passing ability, improve the passing ability, and avoid the cutter head being damaged. card effect

Inactive Publication Date: 2018-08-17
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the purpose of the present invention is to provide a double-shield TBM anti-jamming method to solve the problem that the double-shield TBM is easy to get stuck in the construction process

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Embodiment Construction

[0038] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0039] 1.1 Double shield TBM risk prevention and control technology

[0040] TBM construction risks are mainly controlled from three aspects: start with geological exploration to avoid geological risks; tap potentials from TBM selection and design to avoid TBM equipment risks; and focus on scientific management to avoid man-made risks.

[0041] 1.1.1 Accurately grasp the geological conditions

[0042] Geological conditions are the most important factor controlling whether the double-shield TBM can be successfully excavated. Detailed and reliable geological and hydrological data are the basic conditions for the success of a TBM project and directly determine the success or failure of the project.

[0043] 1) Fully evaluate the designed geological survey depth before construction. If the preliminary geological survey depth is considered insu...

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Abstract

The invention relates to a double-shield TBM getting stuck prevention method. After geological conditions are accurately grasped, a double-shield TBM is subjected to risk prevention and control or improvement, risk prevention and control of the double-shield TBM are to ensure that the TBM efficiently and continuously tunnels, or guarantee a good TBM gesture, or reasonable tunneling parameters areselected, or the expanding and mining amount is increased, or a single-shield tunneling mode is reasonably adopted, or the combination of one or more kinds of advanced fastening stratum processing isconducted; the TBM is subjected to the combination of one or more kinds of cutter improvement, or shield body improvement, or torque increasing or thrust increasing. The problem that the double-shieldTBM easily gets stuck in the construction process is solved.

Description

technical field [0001] The invention belongs to the field of tunnel excavation, and relates to a double-shield TBM anti-jamming machine method. Background technique [0002] At present, the double-shield TBM card machine mainly has the following situations: 1. The cutterhead is stuck. This kind of situation is mainly due to the collapse of the surrounding rock on the face of the cutter head or the top of the cutter head, and the surrounding rock around the cutter head is broken. When the surrounding rock at the top of the disc collapses, the landslide directly fills the gap between the cutter head and the tunnel surface, and the resistance between the cutter head and the surrounding rock is greater than the rated torque for the rotation of the cutter head, resulting in the inability of the cutter head to rotate. 2. The shield is converged due to landslide or plastic deformation of soft rock, or high ground stress causes the surrounding rock to converge as a whole. The stress...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/087
CPCE21D9/0873
Inventor 刘东双刘新荣丁恒军孟庆军钟祖良王林枫
Owner CHONGQING UNIV
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