Earth pressure intelligent control method and system of earth pressure balance shield

Abstract

The invention relates to an earth pressure intelligent control method and system for an earth pressure balance shield, and the method comprises the following steps: data processing: obtaining historical construction data and earth pressure data corresponding to the historical construction data, and carrying out the preprocessing of the historical construction data; model training: learning the historical construction data and the soil pressure data by using a BP neural network model so as to train the BP neural network model to form an intelligent control model; and intelligent control: acquiring real-time construction data of the shield tunneling machine, inputting the real-time construction data into an intelligent control model, outputting a corresponding soil pressure value by the intelligent control model, and adjusting the soil bin pressure of the shield tunneling machine according to the soil pressure value. According to the method, the problem that the influence of subjective factors is large when the earth pressure is controlled is effectively solved, the influence of the subjective factors on earth pressure control is reduced, it is guaranteed that earth surface settlement is within a reasonable range, and large earth surface deformation and serious safety accidents are avoided.

Description

technical field [0001] The invention relates to the field of shield construction, in particular to an earth pressure intelligent control method and system for an earth pressure balance shield. Background technique [0002] The earth pressure balance shield uses the excavated soil to support the excavation surface, and does not require additional large-scale muddy water treatment equipment, so it is widely used. The core of the earth pressure balance shield construction is to maintain the stability of the excavation surface and precisely control the surface settlement. magnitude. [0003] At present, the main method to control the earth pressure balance is to set the soil pressure of the soil bin according to the geological conditions, tunnel depth and manual experience, maintain the earth pressure within the target range during the excavation process, and adjust the target earth pressure according to the monitored surface settlement data However, this method of soil pressur...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the prior art, provide an intelligent control method for earth pressure of earth pressure balance shield, solve the problem that subjective factors have a great influence on earth pressure control, and reduce the influence of subjective factors on earth pressure control , to ensure that the surface settlement is within a reasonable range, to avoid large surface deformation and serious safety accidents

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