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Pile temperature and deformation measuring transparent soil testing device for energy pile group and testing method of testing device

A test device and transparent soil technology, which is applied in the field of civil engineering, can solve the problems of not being able to better simulate the actual engineering situation, and achieve the effect of optimizing the test device for thermodynamic characteristics research and improving the singleness

Pending Publication Date: 2021-12-24
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the current pile group model test of energy piles cannot realize the full coverage monitoring of the pile-soil temperature field and displacement field, and most of the pile types are end-bearing-friction piles, which cannot simulate the actual engineering situation well

Method used

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  • Pile temperature and deformation measuring transparent soil testing device for energy pile group and testing method of testing device
  • Pile temperature and deformation measuring transparent soil testing device for energy pile group and testing method of testing device
  • Pile temperature and deformation measuring transparent soil testing device for energy pile group and testing method of testing device

Examples

Experimental program
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Embodiment 1

[0053]This embodiment discloses an energy pile group pile temperature-deformation measurement transparent soil test device, which includes an optical platform 1 , a transparent model groove 2 and an end bearing groove 3 .

[0054] see figure 1 , the optical table 1 is equipped with a transparent model tank 2 and four lifting brackets 101, the transparent model tank 2 is a rectangular tank with an upper end opening, and the four lifting brackets 101 are respectively located on the four sides of the transparent model tank 2. An infrared thermal imager 102 is installed directly above the transparent model tank 2 .

[0055] The lifting bracket 101 is provided with a vertical slide bar, and the projection of the slide bar of each lifting bracket 101 on the corresponding side wall of the transparent model groove 2 coincides with the central axis of the side wall. Infrared thermal imager 102 , laser emitter 104 and CCD industrial camera 103 are slidably connected on the slide bar. I...

Embodiment 2

[0063] This embodiment is based on the test method of a kind of energy pile group pile temperature-deformation measurement transparent soil test device described in embodiment 1, comprising the following steps:

[0064] 1) Place the transparent model tank 2 on the optical table 1, and fix a plurality of stake forms 303 at the bottom of the transparent model tank 2, coat the inner walls of the stake forms 303 with waterproof vaseline, and install flexible springs 302 in the stake forms 303 to ensure waterproof Vaseline prevents the seepage of the transparent soil 201 and reduces the frictional resistance of the pile formwork 303 side walls.

[0065] 2) Prepare a transparent liquid with the same refractive index as the transparent solid particles, first fill the transparent model tank 2 with a transparent liquid with a height of 5 cm, and then fill in transparent solid particles of the same height, and the transparent liquid and transparent solid particles alternate in turn fill...

Embodiment 3

[0072] This embodiment discloses an energy pile group pile temperature-deformation measurement transparent soil test device, which includes an optical platform 1 , a transparent model groove 2 and an end bearing groove 3 .

[0073] see figure 1 , the optical table 1 is equipped with a transparent model tank 2 and four lifting brackets 101, the transparent model tank 2 is a rectangular tank with an upper end opening, and the four lifting brackets 101 are respectively located on the four sides of the transparent model tank 2. An infrared thermal imager 102 is installed directly above the transparent model tank 2 .

[0074] The lifting bracket 101 is provided with a vertical slide bar, and the projection of the slide bar of each lifting bracket 101 on the corresponding side wall of the transparent model groove 2 coincides with the central axis of the side wall. Infrared thermal imager 102 , laser emitter 104 and CCD industrial camera 103 are slidably connected on the slide bar. ...

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Abstract

The invention discloses a pile temperature and deformation measuring transparent soil testing device for an energy pile group and a testing method of the testing device. The device comprises an optical platform, a lifting support and a transparent model groove; an end bearing groove is fixed in the model groove; the model groove is filled with transparent soil; a model pile is buried in the transparent soil and corresponds to the model groove; and a bearing platform is connected with the pile group. an infrared thermal imager, a CCD industrial camera and a laser transmitter are all connected to the lifting support in a sliding mode and arranged on the periphery of the model groove; and an infrared thermal imager is also arranged over the model groove. The pile testing device for the energy pile group is easy and convenient to operate, economical and feasible, and has high innovativeness. The testing device can simulate four engineering conditions of an end bearing pile-pile group low bearing platform, an end bearing pile-pile group high bearing platform, a friction pile-pile group high bearing platform and a friction pile-pile group low bearing platform, realizes full-coverage monitoring of a pile-soil temperature field and a displacement field, and provides reference for research of thermodynamic characteristics of the pile foundations of the energy pile groups.

Description

technical field [0001] The invention relates to the field of civil construction engineering, in particular to an energy pile group pile temperature-deformation measurement transparent soil test device and a test method thereof. Background technique [0002] With my country's rapid urbanization process, the scale of the construction industry continues to expand, and the proportion of building energy consumption continues to increase. The HVAC system accounts for a large proportion of building energy consumption. Therefore, the development of new energy technologies and the reduction of HVAC system energy consumption have become the key to reducing building energy consumption. As a clean and renewable energy, geothermal energy can effectively increase the proportion of non-fossil energy and reduce the energy consumption of traditional air conditioners. [0003] The development of geothermal energy is mainly based on the traditional ground source heat pump technology, that is,...

Claims

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Application Information

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IPC IPC(8): G01N25/00
CPCG01N25/00
Inventor 王成龙张鼎新丁选明孔纲强仉文岗
Owner CHONGQING UNIV
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