TBM real-time tunneling jamming risk early warning method

Abstract

The invention discloses a TBM (Tunnel Boring Machine) real-time tunneling jamming risk early warning method which comprises the following steps: setting a tunneling termination length judgment value and an effective tunneling length judgment value, and setting an effective tunneling data sequence to be empty; collecting tunneling data; carrying out effective tunneling state judgment on TBM tunneling according to the collected tunneling data; when TBM tunneling is in an effective tunneling state, making effective tunneling point judgment on tunneling points of tunneling data; when TBM tunnelingis in an invalid tunneling state, judging invalid tunneling points; adding and storing the tunneling data of the tunneling point into an effective tunneling data sequence, and calculating the lengthof the effective tunneling data sequence; comparing the length of the effective tunneling data sequence with an effective tunneling length judgment value if the tunneling point is the effective tunneling point; calculating a stuck machine index final value according to tunneling data in the effective tunneling data sequence; and judging and displaying the risk degree of the card machine. The jamming risk in tunneling is effectively identified, the jamming risk is alarmed in real time, the economic loss caused by jamming is reduced, and the construction safety is ensured.

Description

technical field [0001] The invention belongs to the technical field of tunnel boring machine construction in tunnel engineering, and in particular relates to a TBM real-time tunneling machine jam risk early warning method. Background technique [0002] Tunnel boring machine construction has the advantages of safety, high efficiency, and environmental protection. It has become the preferred construction method for long and large tunnel construction. Its development has a history of more than 150 years. However, the TBM equipment is huge. Compared with the drill and blast method, its adaptability to adverse geological conditions is poor. When excavating in soft rock formations, it is easy to induce machine jamming accidents caused by large deformation and landslides, which often result in slow excavation speed. , inefficiency, delays in the construction period and other results, if not handled properly, it may even bring disastrous consequences. [0003] A large number of sch...

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Problems solved by technology

[0005] Aiming at the problems of complex calculation of jamming risk and difficulty in field application, the present invention proposes a real-time TBM tunneling jamming risk early warning method, which can quickly identify the jamming risk based on tunneling parameters, and solves the problem of TBM site construction encountering bad geology. The problem that the risk of jamming is difficult to judge in real time

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