Preparation method for transparent clay in energy pile model test, application and testing device

A model test, energy pile technology, used in the preparation of test samples, the test of the foundation structure, the use of applied stable tension/pressure to test the strength of materials, etc., can solve the problem that the energy pile-soil heat transfer mechanism cannot be analyzed reliably, etc. question

Active Publication Date: 2017-06-20
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problem in the prior art that the energy pile-soil heat transfer mechanism and load transfer mechanism cannot be truly an

Method used

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  • Preparation method for transparent clay in energy pile model test, application and testing device
  • Preparation method for transparent clay in energy pile model test, application and testing device
  • Preparation method for transparent clay in energy pile model test, application and testing device

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Experimental program
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Effect test

Embodiment 1

[0055] Such as Figure 1-2 As shown, the transparent clay preparation device in the energy pile-soil load model test and the energy pile-soil load model test device include an optical platform, a sealed bucket 1, a temperature sensor 2, a heater 3, a constant temperature box 4, and a power mixer 5 , stirrer 6, spiral stirrer 9, transparent model tank 11, vacuum pump 12, energy pile 13, cooling and heating cycle mechanism, fiber grating 19, earth pressure cell 20, loading plate 21, laser 22, fixed bracket 23, CCD camera 24 And computer 25, computer 25 controls CCD camera 24 to take pictures, cold and hot cycle mechanism comprises cold and hot cycle water tank 15, constant temperature water 16, water pump 17 and thermometer 18, transparent model tank 11 adopts the organic glass that thickness is 8 mm to make, transparent model Slot 11 is a hollow cuboid with an open top and a closed bottom, with a thickness of 8 mm, a length and width of 150 mm, and a height of 300 mm. The optic...

Embodiment 2

[0073] Such as Figure 1-2 As shown, the transparent clay preparation device in the energy pile-soil load model test and the energy pile-soil load model test device include an optical platform, a sealed bucket 1, a temperature sensor 2, a heater 3, a constant temperature box 4, and a power mixer 5 , stirrer 6, spiral stirrer 9, transparent model tank 11, vacuum pump 12, energy pile 13, cooling and heating cycle mechanism, fiber grating 19, earth pressure cell 20, loading plate 21, laser 22, fixed bracket 23, CCD camera 24 And computer 25, cold and hot circulation mechanism comprises cold and hot circulation tank 15, constant temperature water 16, water pump 17 and thermometer 18, image 3It is a top view of the energy pile-soil load model test device, three CCD cameras 24 are set with the transparent model groove 11 as the center of the circle, corresponding to the different laser cutting plane directions of the laser 22, and the initial distance between the transparent model ...

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Abstract

The invention discloses a preparation method for transparent clay in an energy pile model test, application and a testing device. The transparent clay is prepared from Carbopol Ultrez 10 polymer and a nanometer material serving as a speckle field of the transparent clay, the transparent clay is fed into a transparent model tank in a layered mode with transparent sandy soil to form a testing soil layer, a plurality of CCD cameras are arranged with the transparent model tank as the circle center, the CCD cameras are connected with a computer to send images shot by the CCD cameras to the computer to perform image processing and analysis and are used for exploring energy pile soil disturbance under hot-cold circulation and pile top load action, energy pile bearing capacity change and a pile periphery soil body temperature change law. The preparation method for transparent clay in the energy pile model test, the application and the testing device disclosed by the invention can effectively solve the problem about an energy pile-soil heat transfer mechanism and load transfer mechanism in soft clay cannot be visually researched, are simple to operate, economical and practical, have obvious testing effects and have wide application prospect.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering model tests, in particular to a preparation method, application and test device of transparent clay in model tests of energy piles. Background technique [0002] Ground source heat pump technology is a new technology that effectively utilizes underground renewable energy, which is of great significance to the national energy conservation and emission reduction strategy. As a clean and sustainable new energy, geothermal energy has the advantages of large reserves, no pollution and no carbon emissions, and it is worthy of vigorous development and utilization. In recent years, engineers and technicians have innovatively combined traditional pile foundations with ground source heat pump heat transfer tubes to form energy piles. This new structural form has dual functions of supporting upper loads and shallow geothermal energy heat transfer. The use of energy piles in the project not ...

Claims

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Application Information

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IPC IPC(8): G01N3/08G01N1/28E02D33/00
CPCE02D33/00E02D2600/10G01N1/28G01N3/08
Inventor 王成青孔纲强周杨文磊张鑫蕊
Owner HOHAI UNIV
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