Model test system for mechanical properties of tunnel lining under action of train aerodynamic loads
The invention provides a model test system for mechanical properties of a tunnel lining under the action of train aerodynamic loads, and belongs to the field of tunnel lining simulation tests. The system comprises a crustal stress field simulation unit, an aerodynamic load simulation unit and a temp...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention provides a model test system for mechanical properties of a tunnel lining under the action of train aerodynamic loads, and belongs to the field of tunnel lining simulation tests. The system comprises a crustal stress field simulation unit, an aerodynamic load simulation unit and a temperature field simulation unit. The crustal stress field simulation unit is used for applying crustal stress to the top and the side part of the damaged lining in a simulated manner; a ventilation opening is formed in the top of the aerodynamic load simulation unit, the aerodynamic load simulation unit is used for supporting the damaged lining and enabling the damaged lining to cover the ventilation opening, and the aerodynamic load simulation unit simulates aerodynamic load changes by changing the air pressure of an inner cavity of the aerodynamic load simulation unit; and the temperature field simulation unit is used for adjusting the temperature of gas in the aerodynamic load simulation unit so as to simulate tem |
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