Perfusion control method and perfusion control device

Abstract

The invention relates to a pouring control method and device. The pouring control method comprises the steps that signals are collected, wherein environment pressure is collected to obtain pressure measurement values; the signals are processed, wherein the pressure measurement values are received, and pouring parameters are obtained according to the pressure measurement values; the signals are output, wherein the pouring parameters are received and output. In the signal processing step, needed control parameters are retrieved based on a control rule table according to the relation between the pressure measurement values and the pressure ideal value, and pouring parameters are obtained according to the pressure measurement values and the control parameters. By the adoption of the pouring control method, the pouring process can be stably controlled, and the expected arching effect is achieved.

Description

technical field [0001] The invention relates to the technical field of tunnel arching, in particular to a perfusion control method and a perfusion control device. Background technique [0002] In tunnel excavation engineering, it is necessary to set a concrete arch shell on the excavated tunnel wall to ensure that the tunnel is arched. Generally, the pouring device is used to pour concrete into the airtight cavity formed between the pouring device and the tunnel wall. When the concrete is poured into the closed cavity, a certain pressure will be formed. If the pressure is too small, the concrete will be intermittent and not dense, and the bearing capacity of the formed arch shell will not be enough, and the expected supporting effect will not be achieved; if the pressure is too large, the concrete slurry will overflow Or damage to the surrounding weak surrounding rocks may lead to damage to the perfusion device, failing to achieve the intended purpose of arching. The pouri...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, a simple closed-loop control method is usually used for perfusion control. This control method adopts a simple PID control, and the coefficient of the control operation is fixed, and will not be adjusted in real time with the dynamic characteristics of the perfusion device, thereby affecting the perfusion speed. The control is not ideal, the adjustment amount is often too large or too small, and the perfusion device will also cause oscillation or instability

Therefore, the expected arching effect cannot be achieved using this simple closed-loop control method

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