A visualization test device and method of soil displacement field during pile sinking

A test device and soil displacement technology, applied in the testing of basic structures, basic structure engineering, construction, etc., can solve the problems of soil deformation, discontinuous and invisible displacement field measurement, avoiding waste and solving visualization problems. , the effect of compact structure

Active Publication Date: 2016-08-17
HOHAI UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to overcome above-mentioned insufficiency and defect, solve the discontinuous and invisible problem of soil internal deformation and displacement field measurement in the pile sinking process, propose a kind of soil body displacement field visualization test device and use method in the pile sinking process, with Achieving the purpose of visual pile sinking process model test

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  • A visualization test device and method of soil displacement field during pile sinking
  • A visualization test device and method of soil displacement field during pile sinking
  • A visualization test device and method of soil displacement field during pile sinking

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Embodiment Construction

[0033] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. The protection scope of the present invention is not limited only to the description of this embodiment.

[0034]First, use n-dodecane and No. 15 white oil at a certain temperature (24°C in this example) to form a mixed solution in a mass ratio (1:4 in this example) and stir with baked quartz sand until it is uniform and transparent , to make artificial synthetic transparent soil 1, the process of preparing artificial synthetic transparent soil 1, keep the temperature constant, the process is continuous; in a flat place, place the optical platform 2, the light in the place is kept uniform, the optical platform of this implementation example 2 The size is 1800 (length) × 1200 (width) × 800 (height) (unit: mm), the thickness of the table is 200mm, four supports are used, and the height of the bracket is 600mm. Fixed pile sinking loading instrumen...

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Abstract

The invention discloses a soil body displacement field visualization testing device used in the pile sinking process and a using method. Transparent soil is formed by compounding the mixed liquid of n-dodecane and fifteenth white oil with baking silica sand; in the pile sinking testing process, the soil body around a pile is cut through a laser to form a bright internal soil body particle section, a CCD camera is used for shooting the section right opposite to the CCD camera, a series of images of the section is acquired, the continuous transformation characters of the interior of the soil body are obtained based on the particle image processing technology, and the un-embedding visualization measuring on the interior continuous transformation, caused in the pile sinking process, of the soil body around the pile is achieved. By means of the technical method, the problem of measuring on the interior continuous transformation of the soil body around the pile in the pile sinking process is solved. The soil body displacement field visualization testing device is high in operability, simple, portable, economical, practical and high in measuring precision.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering visualization tests, and in particular relates to a soil displacement field visualization test device and a use method in the pile sinking process. Background technique [0002] Geotechnical engineering involves construction, transportation, water conservancy, energy and many other industries, and is closely related to people's daily life. Geotechnical engineering tests have always been a necessary means to study the mechanical properties of rock and soil and to test the constitutive model of rock and soil materials. Design and construction provide an important reference basis, and scientifically evaluate the reliability and stability of the project, so as to ensure the smooth progress of the project, achieve technical safety, and economical rationality. Measuring the deformation of soil under various stress states, especially the continuous deformation and displacement field ins...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D33/00
Inventor 刘汉龙曹兆虎孔纲强周航王维国
Owner HOHAI UNIV
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