Overweight force field vibration-table loading device

A technology of loading device and supergravity field, which is applied in the direction of measuring device, vibration test, machine/structural component test, etc., can solve the problems of limited soil depth, equipment performance limitation, working condition limitation and other problems, and achieve simple loading method Flexible, simple equipment structure, ensuring uniform transmission effect

Inactive Publication Date: 2015-02-18
POWERCHINA CHENGDU ENG
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Problems solved by technology

[0004] The existing centrifuge shaking table test is limited by the performance of the equipment, and the depth of the soil layer is relatively limited. Generally, it can only simulate the actual soil layer of about 20m. The size of the model is limited by the capacity of the centrifuge and the working conditions of the centrifuge shaking table.
During the centrifuge shaking table test, the centrifuge has to bear the weight of the shaking table itself and the weight of the model, so that the allowable total weight of the model is limited to a certain extent; the centrifuge shaking table operates under a high gravity field, and its maximum load also limits model weight

Method used

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  • Overweight force field vibration-table loading device
  • Overweight force field vibration-table loading device
  • Overweight force field vibration-table loading device

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Embodiment Construction

[0025] Further description will be made below in conjunction with the embodiments and accompanying drawings.

[0026] Such as figure 1 As shown, a supergravity field vibrating table loading device 100 includes a centrifuge system rotating arm 21, a support 22, a hanging basket 23, a counterweight 24, a centrifuge vibrating table 25 and a model box 1, and the model box 1 is placed on The centrifuge vibrating table 25 is placed on the table and placed in the hanging basket 23, and the model box 1 is provided with a pressure loading device 30.

[0027] Such as figure 2 As shown, the model box 1 is provided with a pressure loading device 30. The pressure loading device 30 is composed of an air bag 2, an air source 3 and a gland 4. The model box 1 is also provided with an upper protective layer 8a and a lower protective layer 8b extending horizontally. , the airbag 2 is located in the space surrounded by the upper protective layer 8a and the lower protective layer 8b, and is con...

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Abstract

An overweight force field vibration-table loading device comprises a centrifugal-system rotating arm, a support, a basket, a centrifugal shaking table and a model case. The model case is placed on the top side of the centrifugal shaking table and is arranged in the basket of the centrifugal system; a pressure loading unit is arranged on the model case and comprises an airbag and a pressure cover, the airbag is arranged in the model case, and the pressure cover covers the opening of the model case and is fixedly connected with the case wall of the model case. By the arrangement, depth in study of foundation soil of tests of an existing centrifugal vibrating table can be effectively expanded, and technical support can be provided for in-depth study of dynamic properties of the deep soil.

Description

technical field [0001] The invention relates to a loading device for a vibrating table in a supergravity field, and belongs to the technical field of testing devices. The vibrating table loading device can not only simulate the base pressure of buildings (structures), but also simulate the self-weight stress of the overlying soil acting on the deep covering layer. Applied to the centrifuge shaking table test, without increasing the weight of the model itself, it can effectively increase the depth of the soil layer studied by the centrifuge shaking table on the basis of the technical conditions of the existing equipment, and provide an important basis for further research on the dynamic response characteristic test of deep soil. Technical Support. Background technique [0002] The site conditions of the in-situ test are completely real, and the test results are relatively reliable. However, for problems such as blasting, pollutant diffusion, and earthquake damage, due to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/02
Inventor 张世殊蔡正银武颖利胡金山周燕国谢洪毅徐光明曲海珠黄锦舒马金根谭晓明
Owner POWERCHINA CHENGDU ENG
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