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TBM operation parameter optimization method and system suitable for various rock mass conditions

A technology of operating parameters and optimization methods, applied in neural learning methods, design optimization/simulation, constraint-based CAD, etc., can solve problems such as difficulty in obtaining, lack of multiple constraints for different rock conditions, and optimization objectives of a single performance index, etc. Improve construction efficiency, save construction costs, and ensure the effect of construction safety

Active Publication Date: 2021-07-23
SHANDONG UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005](1) Most of the existing operation parameter optimization processes lack multiple constraints for different rock mass conditions, and the decision-making results tend to exceed the reasonable value range. Changes in conditions (such as: rock mass strength, integrity, abrasiveness, etc.), the working load of key structures such as cutterheads, cutters, and belt conveyors is likely to exceed the rated value, affecting the safety of TBM construction;
[0006](2) Most of the existing research on the optimization of operating parameters takes a single performance index as the optimization goal, and it is difficult to obtain the comprehensive optimal performance of multiple performance indexes under various rock mass conditions. The operating parameter decision result of

Method used

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  • TBM operation parameter optimization method and system suitable for various rock mass conditions
  • TBM operation parameter optimization method and system suitable for various rock mass conditions
  • TBM operation parameter optimization method and system suitable for various rock mass conditions

Examples

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Embodiment 1

[0044] based on figure 1 , the TBM operating parameter optimization method applicable to various rock mass conditions of the present embodiment specifically includes the following steps:

[0045] Step S101: Obtain rock mass parameters and corresponding TBM excavation data, the TBM excavation data includes operating parameters and performance parameters.

[0046] In a specific implementation, the operating parameters include, but are not limited to, the degree of penetration and the rotational speed of the cutter head.

[0047] Performance parameters include but are not limited to advance speed, reel life, thrust, torque and belt conveyor throughput.

[0048] Among them, the life of the hob is the ratio of the product of the square of the tunnel radius, the tunneling distance and π to the consumption of all the hobs.

[0049] Specifically, the original data of TBM operation and performance parameters such as cutterhead thrust, cutterhead torque, tunneling speed, and belt conv...

Embodiment 2

[0092] This embodiment provides a TBM operating parameter optimization system applicable to various rock mass conditions, which includes:

[0093] A data acquisition module, which is used to acquire rock mass parameters and corresponding TBM excavation data, the TBM excavation data including operating parameters and performance parameters;

[0094] The change law building module is used to take the rock mass compressive strength and penetration as input, and the cutterhead thrust as output to establish the first change law; take the rock mass compressive strength and penetration as input, and take the cutterhead thrust as Torque is the output, and the second change rule is established;

[0095] A dual-drive mapping relationship building module, which is used to take rock mass parameters and operating parameters as input, take the corresponding performance parameters as output, and use the first variation law and the second variation law as constraints to establish a dual-drive...

Embodiment 3

[0100] This embodiment provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, the TBM operating parameter optimization method applicable to various rock mass conditions as described in the first embodiment above is implemented. A step of.

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Abstract

The invention provides a TBM operation parameter optimization method and system suitable for various rock mass conditions. The method comprises the steps of obtaining rock mass parameters and TBM tunneling data corresponding to the rock mass parameters are obtained; building a first change rule by taking the compressive strength and the penetration of the rock mass as input and the thrust of the cutter head as output; building a second change rule by taking the compressive strength and penetration of the rock mass as input and the torque of the cutterhead as output; taking the rock mass parameters and the operation parameters as inputs, taking the corresponding performance parameters as outputs, taking the first change rule and the second change rule as constraint conditions, and establishing a dual-drive mapping relation between the input data and the output data; establishing a TBM operation parameter optimization model by taking construction cost including tunneling speed and hob service life as a comprehensive optimization target and taking thrust, torque and belt conveyor conveying capacity as multivariate constraint indexes; using the TBM operation parameter optimization model for calculating operation parameters under the known rock mass condition when all the constraint indexes are within the rated range and the construction cost is minimum.

Description

technical field [0001] The invention belongs to the technical field of tunnel boring machine construction, and in particular relates to a TBM operation parameter optimization method and system suitable for various rock mass conditions. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Tunnels are widely used in the construction of railways, highways, water conservancy and hydropower, and urban underground space. Due to the advantages of high tunnel boring machine (Tunnel Boring Machine) in terms of high tunneling efficiency, small disturbance to surrounding rock, high hole quality and strong safety, it has become the preferred construction equipment in the construction of deep buried long tunnels . TBM has significant advantages in the construction of long tunnels. However, the adaptability of TBM to rock mass geological conditions is wea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/27G06N3/04G06N3/08G06F111/04G06F111/10G06F119/14
CPCG06F30/27G06N3/08G06F2111/04G06F2111/10G06F2119/14G06N3/045
Inventor 刘斌李术才王瑞睿王亚旭
Owner SHANDONG UNIV
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