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A pile foundation model loading device for vertical/horizontal cyclic loading

A technology of cyclic loading and loading devices, which is applied in the direction of measuring devices, infrastructure engineering, foundation structure tests, etc.

Active Publication Date: 2021-08-20
YANGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at this stage, there are many model experiments on pile foundations under static loads and horizontal cyclic loads, and the research on the mechanical characteristics of pile foundations under vertical / horizontal cyclic loads and the failure law of pile surrounding soil is still limited. lack

Method used

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  • A pile foundation model loading device for vertical/horizontal cyclic loading
  • A pile foundation model loading device for vertical/horizontal cyclic loading
  • A pile foundation model loading device for vertical/horizontal cyclic loading

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Experimental program
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Embodiment Construction

[0024] The present invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments.

[0025] combine Figure 1-Figure 9 , a pile foundation model loading device for vertical / horizontal cyclic loading of the present invention, comprising a model box 1, a reaction frame 2, a horizontal steel frame 3, a cyclic loading system, a horizontal loading system and / or a vertical loading system;

[0026] The front of the model box 1 is tempered glass, and the remaining three sides are steel plates. The model box is reinforced with angle steel 4 around the model box. move. The model box 1 is provided with a model pile 38; the reaction frame 2 is fixed on the model box 1; the horizontal steel frame 3 is fixed on the reaction frame 2. Cantilever beams 5 are respectively fixed on the left and right sides of the model box 1 . One side of the main tank of the model box 1 is provided with a drainage partition to facilitate the dissipation of p...

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Abstract

The invention discloses a pile foundation model loading device for vertical / horizontal cyclic loading, which comprises a model box, a reaction frame on the model box, a horizontal rigid frame with fixed pulleys welded in the middle of the top reaction frame, and a horizontal loading system, vertical loading system, pulleys at the bottom of the model box, force gauges and displacement sensors installed on the vertical and horizontal loading devices. During the test, the speed-regulating motor is controlled to rotate the vertical rigid shaft, thereby driving the counterweight to make Horizontal circular motion realizes vertical cyclic loading and horizontal cyclic loading under different cyclic amplitudes. Compared with the prior art, the present invention makes up for the defect that the existing loading device can only perform single loading, and can effectively simulate the vertical cyclic load generated by passing vehicles in the bridge pile foundation and the horizontal cyclic load such as wind and waves, and is suitable for Wide range and convenient operation.

Description

technical field [0001] The invention belongs to the field of bridge pile foundation engineering, in particular to a pile foundation model loading device for vertical / horizontal cyclic loading. Background technique [0002] With the continuous advancement of urban construction, the development of bridge engineering has been particularly rapid in recent years. In the infrastructure construction of cross-sea bridges, it is necessary to consider the vertical cyclic loads of passing vehicles on the bridge deck and the periodic horizontal cyclic loads of wind, waves, and earthquakes. The accumulative settlement deformation caused by the lower pile foundation will reduce the strength of the soil and thus have an adverse effect on the structure. [0003] At present, the research on bridge pile foundation includes field test, indoor model test, numerical simulation and so on. Compared with the field test, the indoor model test has the advantages of low cost and easy operation, and c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/00E02D33/00E02D27/12
CPCE02D27/12E02D33/00
Inventor 朱小军贾晓敏顾维扬胡顺洋
Owner YANGZHOU UNIV
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