Adaptive control method and system for oil pressure output of shield machine deviation correction
A self-adaptive control and oil pressure technology, which is used in earth-moving drilling, mining equipment, tunnels, etc., can solve the problem of poor rectification stability of shields, inability to accurately decouple shield plane moment and elevation moment, and inability to accurately conform to the elevation of the incision. problems such as the actual load characteristics of the pressure gradient to achieve the effect of reducing the risk of correction and overcoming the accuracy
Active Publication Date: 2020-06-23
SHANGHAI TUNNEL ENG CO LTD
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Problems solved by technology
[0008] The purpose of the present invention is to overcome the defects of the prior art, provide an adaptive control method and system for oil pressure output of shield machine deviation correction, and solve the problem that the existing manual deviation correction cannot accurately realize the decoupling of shield plane moment and elevation moment , Inability to accurately conform to the actual load characteristics of the notch elevation pressure gradient and the inability to accurately realize the coordination between the actual load and the set oil pressure, resulting in poor stability of shield deviation correction and a certain discrete problem in the quality control effect of shield deviation correction
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[0187] As another preferred embodiment of the present invention, it also includes:
[0188] The oil pressure of the jacks in each zone is controlled by the output oil pressure of the correction in each zone.
[0189] The correction torque of the current loop in the adaptive control method of the present invention can be input manually, and can also be sent by other systems or modules.
[0190] In a preferred embodiment,
[0191] In another preferred embodiment, the method for predicting the deflection correcting torque of the shield includes acquiring the actual torque value of the jack and the actual stroke difference angle value of the jack in real time during the excavation of the shield tunneling; using the actual torque value of the jack acquired in real time and the actual Solve the relationship expression between the corresponding jack deviation angle and the jack travel angle by solving the travel difference angle value; obtain the jack travel difference angle predict...
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The invention relates to a shield deviation rectifying oil pressure output self-adaptive control method and system. The shield deviation rectifying oil pressure output self-adaptive control method comprises the following steps that a jack on a shield machine is zoned; a deviation rectifying force moment and a deviation rectifying oil pressure conversion model of the jack in each subarea are set upaccording to subareas of the jack; actual oil pressure of the jack in each subarea is obtained; deviation rectifying oil pressure of the jack in each subarea corresponding to the current ring deviation rectifying force moment is obtained through the conversion model and used as deviation rectifying set oil pressure; and the deviation rectifying set oil pressure is self-adaptively processed according to the obtained actual oil pressure of the jack in each area to obtain deviation rectifying output oil pressure for outputting. According to the shield deviation rectifying oil pressure output self-adaptive control method and system, the actual load characteristics of accurate realization of decoupling of shield plane force moment and elevation force moment and accurate coincidence of incisionelevation pressure gradient are realized, the effect of automatic adaptation matching of the actual load and the set oil pressure is realized, and the deviation rectifying risk caused by oil pressuresetting error due to manual operation is decreased.
Description
technical field [0001] The invention relates to the field of shield tunneling construction engineering, in particular to an adaptive control method and system for oil pressure output of shield tunneling correction. Background technique [0002] The goal of deflection correction in tunnel construction is to make the tunnel construction axis as close as possible to the tunnel design axis (DTA). The actual tunnel construction axis generally approaches the DTA in a "snake" shape within the scope of quality control. The existing technology is to manually operate the deflection correction of the shield machine. The principle of the manual deflection control strategy for zone oil pressure is "diligent correction and slow correction". In fact, it is a method of repeated trial and error with the actual zone oil pressure. The operator's experience level in manual correction determines the amplitude and frequency of the "snake". There are following technical difficulties in manual de...
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IPC IPC(8): E21D9/093E21D9/00
CPCE21D9/003E21D9/093
Inventor 杨宏燕孙连李磊包蓁
Owner SHANGHAI TUNNEL ENG CO LTD