A pavement structural mechanical behavior testing device and method

A technology of pavement structure and test device, which is applied in soil material testing, material inspection products, etc., can solve the problems of high consumption of manpower and material resources, limited test results, poor controllability, etc., and achieve the effect of ensuring accuracy
CN107478802AInactive Publication Date: 2017-12-15CHANGAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHANGAN UNIV
Publication Date
2017-12-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

A pavement structural mechanical behavior testing device and method are provided. The bottom inside an insulating building is provided with a pedestal. The pedestal is provided with a group of vertical pillars. Lifting and descending platforms capable of being lifted and descending along the vertical pillars are mounted to the vertical pillars. A telescopic cylinder protruding out of the bottoms of the lifting and descending platforms is mounted to the lifting and descending platforms, and is perpendicular to the pedestal. The bottom of the telescopic cylinder is provided with a loading mechanism. A tyre is mounted to the loading mechanism. The vertical pillars and the telescopic cylinder are provided with a tyre positioning mechanism. A pair of guide rails are paved on the pedestal below the tyre. A roller box moving along the guide rails is mounted on the guide rails. A supporting platform is mounted to the top surface of the roller box. A test specimen box used for accommodating a pavement test specimen is mounted on the top surface of the supporting platform. According to the device and the method, restraint functions of pavement surrounding structures to critical damage zones are simulated by adopting a steel structure, and therefore the restraint state of pavement surrounding structures to critical damage zones in natural environment of an actual pavement can be simulated furthest.
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Description

technical field

[0001] The invention belongs to the field of pavement structural mechanics, and relates to the research on mechanical behavior and long-term durability of pavement structure, in particular to a test device and test method for pavement structural mechanical behavior. Background technique

[0002] Road transportation plays an important role in the development of the national economy. Under the cyclic action of vehicle loads and environmental loads, damage to the pavement structure accumulates, resulting in various diseases, such as cracks, rutting, etc. These pavement diseases not only affect the driving comfort and safety of vehicles, reduce road service performance, but also affect Service life of pavement structures. Therefore, it is particularly important to study the mechanical behavior of pavement structures under vehicle loads and environmental loads.

[0003] At present, the commonly used test methods for the mechanical behavior of pavement structures...

Claims

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