Distributed multi-point synchronous electro-hydraulic servo control system of tunnel model test platform

Abstract

The invention discloses a distributed multi-point synchronous electro-hydraulic servo control system of a tunnel model test platform. The system is characterized in that the system comprises a controlmodule, an oil tank, a first variable pump, a second variable pump, a third variable pump, a first control valve, a second control valve, a third control valve, a fourth control valve, a fifth control valve and an execution module; and the system has the advantages that the opening and closing states of the first control valve, the second control valve, the third control valve, the fourth controlvalve and the fifth control valve are controlled through the valve bank control module, oil ways flowing out of an outlet of the first variable pump, an outlet of the second variable pump and an outlet of the third variable pump form a series-parallel structure, oil supply to corresponding proportional valve-controlled hydraulic cylinder groups can be achieved, joint oil supply can also be performed by controlling the opening and closing states of the fourth control valve and the fifth control valve, oil supply can be performed in any combined mode, flexible arrangement is achieved accordingto load needs, an energy saving effect can be achieved, and a mutual-standby oil way effect is also achieved.

Description

technical field [0001] The invention relates to an electro-hydraulic servo control system, in particular to a distributed multi-point synchronous electro-hydraulic servo control system of a tunnel model test platform. Background technique [0002] In the process of tunnel construction, in order to ensure the safety of the segment during construction, it is necessary to detect the deformation characteristics and load characteristics of the segment in advance. The overall average state when subjected to a constant load. However, the deformation at one position of the segment will affect the surrounding parts, and in the actual construction environment, the load characteristics of the soil layer at different positions will change at any time with the progress of the construction. The pressure of the segment also changes accordingly. Therefore, the segment detected by the constant load method is easy to be damaged in a local position during actual construction. Contents of the...

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Problems solved by technology

[0002] In the process of tunnel construction, in order to ensure the safety of the segment during construction, it is necessary to detect the deformation characteristics and load characteristics of the segment in advance. The overall average state when subjected to a constant load. However, the deformation at one position on the segment will affect the surrounding parts, and in the actual construction environment, the load characteristics of the soil layer at different positions will change at any time with the progress of the construction. The pressure of the segment also changes accordingly. Therefore, the segment detected by the constant load method is easy to be damaged in a local position during actual construction.

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