A tunnel structure multi-dimensional space loading fire test system and its implementation method
A technology of multi-dimensional space and tunnel structure, which is applied in the direction of using combustion for chemical analysis, etc. It can solve problems such as the difficulty of combining thermal imaging and ranging, the inability to meet the needs of high-temperature environments in tunnel fires, and the narrow imaging angle of view.
Active Publication Date: 2022-01-14
CHINA UNIV OF MINING & TECH
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Problems solved by technology
Common high-temperature cameras and thermal imaging cameras are generally placed outside the high-temperature environment of the fire (that is, usually at room temperature), and indirectly imaged through the lens assembly inserted into the high-temperature environment of the fire. This type of high-temperature camera and thermal image The disadvantage of the instrument is that the imaging angle of view is narrow, and it is difficult to combine thermal imaging and distance measurement, which cannot well meet the requirements of the high-temperature environment of tunnel fires.
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[0071] This embodiment also provides a method for implementing a tunnel structure multi-dimensional space loading fire test system, which specifically includes the following steps:
[0072] 1) Hoist the model assembly platform 23-2 to the upper part of the model carrier vehicle 23-1, and connect it with the model carrier vehicle 23-1 with bolts. 23-2 to complete the assembly; the hydraulic power station 12 is controlled by the console 24, and the console 24 is provided with a wireless receiving unit compatible with the first telescopic rod 7-3, the electric push rod 2-1 and the second telescopic rod 8-2. Matched wireless transmitting unit;
[0073] 2) The model carrier 23-1 is transported along the rails to the inner cavities of the two reaction frames 1, and after the tunnel model is transported to the specified test position, several hydraulic support cylinders 10 located outside the wheels of the model carrier 23-1 are raised to The lower surface of the model assembly plat...
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The invention discloses a tunnel structure multi-dimensional space loading fire test system, which includes a multi-point loading self-balancing reaction force system provided with a rigid platform, and a model transport device for transporting and placing a track model on the track on the rigid platform and two Furnace body side seal device, two furnace body side seal devices are used to seal the two ports of the tunnel model respectively, the inner cavity of the tunnel model can place the tower type combustion vehicle, multi-point loading between the two reaction force frames of the self-balancing reaction force system There are several sets of evenly distributed self-adaptive loading devices for applying loading force to the outer wall of the tunnel model. This system can load tunnel models with different cross-section shapes, and is suitable for the test requirements of tunnel structures with different cross-sectional shapes, especially for tunnels. In the structural fire test, the camera has a large imaging angle, good heat resistance, thermal imaging and distance measurement, which can well meet the requirements of the high-temperature environment of the tunnel fire.
Description
technical field [0001] The invention relates to the field of tunnel structure fire test systems, in particular to a multi-dimensional space loading fire test system for tunnel structures and an implementation method thereof. Background technique [0002] With the advancement of my country's industrialization and urbanization, the development and utilization of my country's traffic tunnels (roads, railways, subways, subsea tunnels, etc.) has entered a stage of rapid growth. It is easy to cause serious losses because of the characteristics of control and high risk; the tunnel structure is in a state of confining pressure and stress during daily operation, and evaluating its bearing capacity is of great significance for tunnel design and operational safety. Generally, the load-carrying capacity of the tunnel test model can be determined by using the counter force loading system. However, with the diversification of tunnel uses, the shape of the tunnel section is constantly upda...
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IPC IPC(8): G01N31/12
CPCG01N31/12G01M99/002A62C3/0221A62C99/0081G01M5/0058
Inventor 陈伟叶继红姜健李瑞
Owner CHINA UNIV OF MINING & TECH