# US 11,442,418 B2 · Fire test system and method for tunnel structure based on real-time fusion of numerical and physical spaces

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- Number: US 11,442,418 B2
- Document ID: US11442418B2
- Status: Granted
- Kind: B2
- Application number: 17/129,836
- Filed: 2020-12-21
- Published: 2021-07-08
- Granted: 2022-09-13
- Earliest claimed: 2020-01-02
- Assignees: Tongji University
- Applicants: Tongji University
- Inventors: Zhiguo Yan; Hehua Zhu; Tong Zhang; Wenqi Ding; Yi Shen
- Web page: https://patentgrep.com/patent/US11442418B2

## CPC

- G05B 17/02: electric
- G01N 25/00: Investigating or analyzing materials by the use of thermal means (G01N3/00 - G01N23/00 take precedence)
- A62C 3/0221: {for tunnels}
- G05B 6/02: electric
- G05B 9/02: electric
- G05B 17/00: Systems involving the use of models or simulators of said systems (G05B13/00, G05B15/00, G05B19/00 take precedence)
- G05B 23/00: Testing or monitoring of control systems or parts thereof (monitoring of program-control systems G05B19/048, G05B19/406)
- G06N 5/02: Knowledge representation; Symbolic representation
- G09B 19/00: Teaching not covered by other main groups of this subclass (teaching or practice apparatus for gun-aiming or gun-laying F41G3/26)
- G09B 25/04: of buildings
- G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G)
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)
- A62C: FIRE-FIGHTING (fire-extinguishing compositions, use of chemical substances in extinguishing fires A62D1/00; spraying, applying liquids or other fluent materials to surfaces in general B05; alarm arrangements G08B, e.g. fire alarms actuated by smoke or gases G08B17/10)
- G06N: COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- G09B: EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS (devices for psychotechnics or for testing reaction times A61B5/16; games, sports, amusements A63; projectors, projector screens G03B)

## Abstract

The present disclosure provides a fire test system and method for tunnel structure based on real-time fusion of numerical and physical spaces. The fire test system includes: a physical test unit, to perform a holographic fire test on the typical segment components of tunnel structure system in a physical space, to obtain holographic characteristic parameter data of the typical components; a numerical analysis unit, to establish a full-scale numerical model of the tunnel-stratum composite system in a numerical space, to obtain multi-field coupling boundary data of the typical components; and a fusion control unit, to control and adjust a multi-field coupling boundary of the physical space according to the multi-field coupling boundary data, and to update and adjust an input parameter of the numerical space according to the holographic characteristic parameter data.

## Claims

### Claim 1

A fire test system for tunnel structure based n real-time fusion of numerical and physical spaces, comprising:
a physical test unit, to perform a holographic fire test on a plurality of components of a tunnel structure system in a physical space, to obtain holographic characteristic parameter data of the components, wherein the physical test unit includes a fire thermal environment simulation subsystem, a multi field coupling boundary loading subsystem, and a holographic data acquisition subsystem, wherein the fire thermal environment simulation subsystem comprises a furnace, a burner, a temperature control box, an air supply device, and a gas supply device, wherein the gas supply device include a liquefied gas cylinder and a forced gasification apparatus;
a numerical analysis unit, to establish a full-scale numerical mode of a tunnel-stratum system in a numerical space, to obtain multi-field coupling boundary data of the components; and
a fusion control unit, to control and adjust a multi-field coupling boundary of the physical space according to the multi-field coupling boundary data, and to update and adjust an input parameter of the numerical space according to the holographic characteristic parameter data.

### Claim 2 (depends on 1)

The fire test system for tunnel structure based on real-time fusion of numerical and physical spaces according to claim 1, wherein the numerical analysis unit obtains the multi-field coupling boundary data of the components through lightweight calculation.

### Claim 3 (depends on 1)

The fire test system for tunnel structure based on real-time fusion of numerical and physical spaces according to claim 1, wherein the holographic characteristic parameter includes a macroscopical mechanical parameter, a multi-field characteristic parameter, and multi-scale image information.

### Claim 4 (depends on 1)

The fire test system for tunnel structure based on real-time fusion of numerical and physical spaces according to claim 1, wherein the components include a standard block, a capping block, a joint, and a water stop strip.

### Claim 5 (depends on 1)

The fire test system for tunnel structure based on real-time fusion of numerical and physical spaces according to claim 1, wherein the full-scale numerical model of the tunnel structure system includes a tunnel structure model and a tunnel-surrounding water and soil model.

### Claim 6

A fire test method for tunnel structure based on real-time fusion of numerical and physical spaces, comprising:
obtaining holographic characteristic parameter data of a component by performing a holographic fire test on a plurality of components in a tunnel structure system in a physical space by a physical test unit, wherein the physical test unit includes a fire thermal environment simulation subsystem, a multi-field coupling boundary loading subsystem, and a holographic data acquisition subsystem, wherein the fire thermal environment simulation subsystem comprises a furnace, a burner, a temperature control box, an air supply device, and a gas supply device, wherein the gas supply device include a liquefied gas cylinder and a forced gasification apparatus;
obtaining multi-field coupling boundary data of the component by establishing a full-scale tunnel-stratum numerical model of the tunnel structure system in a numerical space;
controlling and adjusting the multi-field coupling boundary of the physical space according to the multi-field coupling boundary data, and updating and adjusting an input parameter in the numerical space according to the holographic characteristic parameter data.

### Claim 7 (depends on 6)

The fire test method for tunnel structure based on real-time fusion of numerical and physical spaces according to claim 6, wherein the holographic characteristic parameter includes a macroscopical mechanical parameter, a multi-field characteristic parameter, and image information.

### Claim 8 (depends on 6)

The fire test method for tunnel structure based on real-time fusion of numerical and physical spaces according to claim 6, wherein the obtaining of the multi-field coupling boundary data of the component by establishing the full-scale numerical model of the tunnel structure system in the numerical space includes: obtaining the multi-field coupling boundary data of the components through lightweight calculation by establishing the full-scale numerical model of the tunnel structure system in the numerical space.

### Claim 9 (depends on 6)

The fire test method for tunnel structure based on real-time fusion of numerical and physical spaces according to claim 6, wherein the full-scale numerical model of the tunnel structure system includes a tunnel structure model and a tunnel-surrounding water and soil model.