Intermodulation control algorithm for undersea tunnel

Abstract

The invention relates to the technical field of undersea tunnels, in particular to an intermodulation control algorithm for an undersea tunnel. In a process, after a system is started up, if a push-end displacement 1 sensor does not report errors, a push-end oil cylinder displacement actual value L0 is equal to a push-end oil cylinder displacement 1 actual value L1; if the push-end displacement 1sensor reports the errors, the push-end oil cylinder displacement actual value L0 is equal to a push-end oil cylinder displacement 2 actual value L2; after the system runs, if L0 is more than or equalto a set thrusting stroke L, the system stops; if L0 is less than the set thrusting stroke L, in case of no reporting the errors, the system always runs until L0 is more than or equal to L, and if the system reports the errors, the system stops. Error reporting of the system comprises the equations that L0-L3 is more than or equal to D1 and L0-L4 is more than or equal to D1; if the push-end oil cylinder displacement 1 sensor does not report the errors, L7-L5 is less than or equal to D2; and if the push-end oil cylinder displacement 1 sensor reports the errors, L7-L6 is less than or equal to D2, F is more than or equal to F1, and F is less than or equal to F2. According to the intermodulation control algorithm for the undersea tunnel disclosed by the invention, rectification and location on components can be ensured by adopting closed-loop control of positions; and through a redundancy control system, a switching operation under any situations can be realized, and smoothness of site works is ensured.

Description

Technical field[0001]The invention relates to the technical field of subsea tunnel construction, in particular to a subsea tunnel internal adjustment control algorithm.Background technique[0002]The fine adjustment method is to install a pushing device and a feedback device on the immersed pipe butt end of the immersed pipe and the side wall of the immersed pipe to be installed. The correction system on the upper side pushes the side wall of the butt end of the sinking pipe to be installed, so that the tail end of the sinking pipe to be installed can be corrected.[0003]One method of subsea tunnel construction is to divide it into several pipe sections and gradually splice them by floating, transporting and sinking. Due to the large number of immersed pipes, if the error of each section of immersed pipe is not well controlled during installation, the cumulative error will be very high. Large, it will bring huge hidden dangers to the final completion of the docking and the smooth compl...

AI Technical Summary

Problems solved by technology

[0004]Aiming at the deficiencies in the above-mentioned construction process, this application provides a subsea tunnel internal adjustment control algorithm, which solves the problem of the current construction process. There are a large number of immersed tubes. If the error is not well controlled during the installation of each immersed tube, the cumulative error will be very large, which will bring huge hidden dangers to the technical problems of whether the docking can be completed in the end and whether the entire project can be completed smoothly.

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