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

A technology of earth pressure balance shield tunneling and intelligent control system, which is applied in the fields of earth drilling, special data processing applications, mining equipment, etc., and can solve the problems of subjective factors such as large influence, so as to avoid surface deformation, avoid serious safety accidents, The effect of reducing the impact

Pending Publication Date: 2021-04-13
SHANGHAI TUNNEL ENG CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

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 infl

Method used

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

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specific Embodiment approach

[0053] Obtain historical construction data and corresponding earth pressure data. The historical construction data include the total thrust of the shield machine in the propulsion state, the propulsion speed of the shield machine, the speed of the screw machine of the shield machine, the torque of the cutter head of the shield machine, the tunnel buried depth, cumulative settlement value in front of the excavation face and target cumulative settlement value in front of the excavation face. The single settlement value in front of the excavation face is calculated from the surface monitoring data of the shield machine, and the cumulative settlement value in front of the excavation face is obtained from the surface monitoring data of the shield machine;

[0054] The above-mentioned historical construction data is averaged to eliminate the problem of different data acquisition frequencies, and the averaged historical construction data and corresponding earth pressure data are used ...

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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...

Claims

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Application Information

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IPC IPC(8): E21D9/06E21D9/00E21D9/12E21F17/18E21F17/00G06F30/20
CPCE21D9/06E21D9/003E21D9/12E21F17/18E21F17/00G06F30/20
Inventor 李刚李波胡珉裴烈烽董鹏陈刚王延年吴忠明
Owner SHANGHAI TUNNEL ENG CO LTD
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