A method for dismantling a tunnel boring machine inside the tunnel.
By dividing the cutterhead into three parts and disassembling it using lifting equipment and rails, the problems of low cutterhead recycling rate and high safety risks during tunnel boring machine disassembly were solved, achieving complete disassembly and safe and efficient recycling of the cutterhead.
CN119466827BActive Publication Date: 2026-06-30CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
- Filing Date
- 2024-11-08
- Publication Date
- 2026-06-30
Smart Images
Figure CN119466827B_ABST
Abstract
This invention belongs to the technical field of tunneling equipment, specifically providing a method for dismantling a tunnel boring machine (TBM) inside the tunnel. The dismantling method includes the following steps when dismantling the cutterhead: ① Cutting off the connecting structure between the left and middle blocks to create a gap sufficient for the left block to be dismantled. The left block is then pulled back and flipped onto a transport vehicle using a lifting device mounted on the shield shell; ② Cutting off the connecting structure between the right and middle blocks to create a gap sufficient for the right block to be dismantled. The left block is then pulled back and flipped onto a transport vehicle using a lifting device mounted on the shield shell; ③ Using a lifting device mounted on the shield shell, the middle block is pulled back and flipped onto a transport vehicle. The dismantled cutterhead remains relatively intact. Subsequent recycling only requires replacing the cut connecting structures. Furthermore, the middle block receives stable support from the tunnel wall and the tunnel face before dismantling, resulting in higher safety.
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