A control system based on intelligent dual displacement sensors for bridge jacking

Abstract

The invention discloses a control system based on a bridge jacking intelligent double-displacement sensor. The system comprises a control host and a plurality of monitoring stations arranged on one side of a bridge jacking device. The control host comprises a control module, a monitoring module and an alarm unit. The monitoring module measures a numerical value difference of displacement sensors,and the control module performs operation processing on an input numerical value difference and sends an execution command to the alarm unit. The monitoring stations comprises double-displacement sensors arranged on one side of the jacking device, digital links connected to the double-displacement sensor and the control host, and transmitters arranged in the digital links. Two sensors with different working principles can be used to calculate whether a stroke difference of the two sensors exceeds a limit value or not through a software system, and an intelligent self-checking function is achieved. Meanwhile, the vibration and displacement during bridge construction can be monitored in real time through computer software, abnormal signals are sent to constructors in time, and the stable construction safety coefficient is maintained.

Description

technical field [0001] The invention belongs to the field of bridge construction monitoring, in particular to a control system based on bridge jacking intelligent double displacement sensors. Background technique [0002] During the lifting process of the beam, due to the open-air working environment, the steel material often expands and contracts due to thermal expansion and contraction under the action of temperature, resulting in a gap between the displacement sensor fixed on the beam, the jacking device and the beam. Relative smoothness is generated, so it is impossible to judge whether the displacement sensor is at the correct measurement point. Secondly, the existing displacement sensor does not have a self-check function, and cannot make an effective judgment on its working status and measured data. to a greater security risk. Contents of the invention [0003] Purpose of the invention: To provide a control system based on bridge jacking intelligent dual displaceme...

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Problems solved by technology

[0002] During the lifting process of the beam body, due to the open-air working environment, the steel material often undergoes expansion and contraction deformation under the action of temperature, resulting in a gap between the displacement sensor fixed on the beam body, the jacking device and the beam body. It produces relative smoothness, so that it is impossible to judge whether the displacement sensor is at the correct measurement point. Secondly, the existing displacement sensor does not have a self-check function, and cannot make an effective judgment on its working status and measured data. greater safety hazard

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