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Soil body internal deformation testing device

A deformation test and soil technology, applied in the field of geotechnical engineering, can solve the problem of inability to easily test the internal displacement of soil, and achieve the effect of intuitive and accurate test results and convenient processing.

Inactive Publication Date: 2008-09-24
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a soil internal deformation testing device, which is applied to the geotechnical model test, so that it solves the problem that the internal displacement (or settlement) of the soil cannot be conveniently tested in the geotechnical model test

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Embodiment Construction

[0020] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0021] This embodiment is used to test the internal deformation of the soil in the geotechnical model test of the negative friction characteristics of the single pile, and is used to test the vertical deformation (internal settlement of the soil) at a depth of 20 cm inside the soil.

[0022] Such as figure 1 As shown, this embodiment includes: a deformation coordination sheet 1, a displacement transmission rod 2, a soft casing 3 and a displacement meter 4, wherein: the deformation coordination sheet 1 is pre-embedded in the soil body 5 at the position to be measured, ...

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Abstract

A deformation test device inside a soil-mass belongs to the technology field of geotechnical engineering test. The invention includes a deformation coordinating tablet, a displacement transmission rod, a soft casing and a displacement meter, wherein the deformation coordinating tablet is pre-buried in the position to be determined in soil, the centre of the deformation coordinating tablet is fixedly connected with the displacement transmission rod, the other end of the displacement transmission rod is connected with the displacement meter, the displacement transmission rod is located in the soft casing, and the displacement transmission rod is isolated from the outside soil-mass by the soft casing. The invention has simple structure, convenient processing and simple operation, which is applied for geotechnical model test and can conveniently test the displacement inside the soil-mass, and the results are accurate and reliable.

Description

technical field [0001] The invention relates to a testing device in the technical field of geotechnical engineering, in particular to a soil internal deformation testing device. Background technique [0002] The geotechnical engineering model test is the most basic research method in the field of geotechnical engineering. In the geotechnical model test, it is often necessary to test the deformation force inside the soil. However, there is currently a lack of testing devices and means for the internal deformation of the soil, which affects Analysis and judgment of test results. At present, the common in-situ observation method for the internal settlement of the soil is to anchor a circular settlement tube to the soil base, put a magnetic ring or a settlement plate on the periphery of the settlement tube, and bury it at the corresponding position of each observation level. When the body deforms, it can sink synchronously with the surrounding soil, and the settling tube will n...

Claims

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Application Information

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IPC IPC(8): G01B7/02
Inventor 陈锦剑高慧
Owner SHANGHAI JIAO TONG UNIV
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