Method and system for judging tunneling state of shield machine

A technology of shield machine and status, which is applied in the direction of earth drilling, mining equipment, tunnels, etc., can solve the problem of inability to timely and accurately judge the tunneling status of the shield machine, and achieve the effect of safe and efficient tunnel construction

Active Publication Date: 2020-04-07
HEBEI CONSTR & INVESTIGATION RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method and system for judging the tunneling state of the shield machine, which solves the problem that the tunneling state of the shield machine cannot be judged timely and accurately

Method used

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  • Method and system for judging tunneling state of shield machine
  • Method and system for judging tunneling state of shield machine
  • Method and system for judging tunneling state of shield machine

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Comparison scheme
Effect test

Embodiment 1

[0055] figure 1 It is a flow chart of the method for judging the tunneling state of the shield machine in Embodiment 1 of the present invention. see figure 1 , a method for judging the tunneling state of a shield machine, comprising:

[0056] Step 101, obtaining the tunneling parameters of the shield machine collected by the safety risk real-time monitoring system of the shield machine.

[0057] The tunneling parameters include: TBM thrust and cutterhead torque.

[0058] In step 102, the tunneling parameters are converted and defined by introducing the depth of cut per revolution to obtain the shield thrust required for the tunneling unit length of the shield machine and the tangential force of the cutterhead required for the tunneling unit depth of the shield machine. The shield thrust required for the tunneling unit length of the shield machine is expressed as the standard thrust

[0059] standard thrust for:

[0060]

[0061] Among them, F represents the thrust ...

Embodiment 2

[0084] image 3 It is a system diagram for judging the tunneling state of the shield machine in Embodiment 2 of the present invention. see image 3 , a system for judging the tunneling state of a shield machine, comprising:

[0085] The excavation parameter acquisition module 201 is used to acquire the excavation parameters of the shield machine collected by the safety risk real-time monitoring system of the shield machine.

[0086] The tunneling parameter conversion module 202 is used to convert and define the tunneling parameters by introducing the depth of cut per revolution, and obtain the shield thrust required for the tunneling unit length of the shield machine and the cutter head tangential direction required for the tunneling unit depth of the shield machine force. The shield thrust required for the unit length of the excavation is expressed as the standard thrust The cutter head tangential force required for the said excavation unit depth of cut is expressed as s...

Embodiment 3

[0095] Figure 4 It is a flowchart of soil layer identification based on excavation parameters in Embodiment 3 of the present invention. see Figure 4 , this embodiment provides a method for judging the tunneling state of the shield machine according to the real-time tunneling parameters of the shield machine in a composite stratum. Specifically follow the steps below:

[0096] Step 1: Obtain the real-time excavation parameters of the shield machine through the safety risk real-time monitoring system that comes with the shield machine. The main excavation parameters collected are shield thrust, cutter head torque and depth of cut per revolution.

[0097] Step 2: Among the many tunneling parameters of the shield machine, many studies have shown that the thrust F of the shield machine and the torque T of the cutterhead are the most sensitive to the changes in the soil layer that the shield machine passes through and the abnormal conditions of the shield machine. Since the cha...

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Abstract

The invention discloses a judging method and a system of a shield machine tunneling state, and relates to the technical field of shield construction. The judging method comprises the steps that shieldthrust and cutterhead torque are subjected to treatment, the influences of tunneling rate and the cutterhead rotating speed are removed, and meanwhile the concepts of standard thrust and standard torque are proposed, the shield machine tunneling state based on a self-tunneling parameter is distinguished in real time, a preliminary judgment to the shield machine tunneling state is rapidly, conveniently and accurately carried out by analyzing data, the shield machine tunneling parameter can be adjusted or a corresponding construction measure can be adopted in time, and safely and efficiently processing tunnel construction is guaranteed.

Description

technical field [0001] The invention relates to the field of shield tunneling construction, in particular to a method and system for judging the tunneling state of a shield tunneling machine. Background technique [0002] With the rapid development of urban modernization, the problem of traffic congestion is becoming more and more significant. More and more cities reduce urban traffic pressure by building subway projects. Due to the advantages of high excavation efficiency, construction safety and small impact on the surrounding environment, the shield tunneling method has become the main construction method for subway tunnel construction. [0003] The shield tunnel boring machine, referred to as the shield machine, will encounter a variety of abnormal conditions when excavating underground, such as sudden changes in the nature of the soil layer, mud cake formation on the shield machine cutterhead, and blockage of the slag outlet. Existing tunneling status of shield machine...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/08E21D9/093E21F17/18E21F17/00
CPCE21D9/08E21D9/093E21F17/00E21F17/18
Inventor 聂庆科管晓明李华伟韩立君于云龙张良于俊超王伟
Owner HEBEI CONSTR & INVESTIGATION RES INST
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