Soft clay hollow cylinder sample preparation instrument and use method

A hollow cylindrical sample and sample preparation technology, which is used in the preparation of test samples and other directions, can solve the problems of large inner and outer diameter errors, large disturbances, slow sample forming speed, etc. Die easy effect

Active Publication Date: 2017-03-15
ZHEJIANG UNIV CITY COLLEGE +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to address the above technical problems, to provide a soft clay hollow cylindrical sample sample preparation instrument and its use method, which are used to overcome the problems of large disturbance, large err

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  • Soft clay hollow cylinder sample preparation instrument and use method
  • Soft clay hollow cylinder sample preparation instrument and use method
  • Soft clay hollow cylinder sample preparation instrument and use method

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Embodiment Construction

[0045] A kind of soft clay hollow cylinder sample preparation device and using method of the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0046] The embodiments described herein are specific embodiments of the present invention, are used to illustrate the concept of the present invention, are illustrative and exemplary, and should not be construed as limiting the embodiments of the present invention and the scope of the present invention. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the contents disclosed in the claims and the description of the present application, and these technical solutions include any obvious technical solutions to the embodiments described herein. Alternative and modified technical solutions.

[0047]The accompanying drawings in the present specification are schematic diagrams to assist in expl...

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Abstract

The invention discloses a soft clay hollow cylinder sample preparation instrument and a use method. The sample preparation instrument comprises a table type water drilling machine part, a replaceable drill bit part and a sample preparation barrel part; the table type water drilling machine part comprises a water drilling machine, a lifting bracket and a regulating handle; the lifting bracket is arranged at the lower part of the water drilling machine, a tool bit of the replaceable drill bit part is installed on the water drilling machine through an adapter; the sample preparation barrel part is fixed on the lifting bracket, a sample preparation barrel bracket of the sample preparation barrel part is fixed on a bottom turntable, a sample preparation barrel is arranged on the sample preparation barrel bracket, a spent clay barrel is arranged right below the sample preparation barrel, and a turntable motor is connected with the bottom turntable. According to the soft clay hollow cylinder sample preparation instrument and the use method, provided by the invention, the sample preparation instrument is simple in structure, convenient in operation and easy in demolding, and can realize mechanized sample preparation rapidly; the disturbance of the intact clay is reduced, the interior pile collapse of a hollow sample is prevented, the quality of a prepared sample is guaranteed effectively, and a foundation is laid for the torsional tear test of a hollow cylinder.

Description

technical field [0001] The invention relates to a sample preparation device for a hollow torsional shear test in an indoor geotechnical test, in particular to a sample preparation device for a soft clay hollow cylindrical sample and a method for using the same. Background technique [0002] With the development of social economy, infrastructure construction projects are blooming all over the country. Many high-speed railways and highways in China are built on soft foundations. Considering the dynamic loads such as waves and tides in coastal areas, the requirements for soil stability and deformation are increasing day by day. Therefore, it is particularly important to conduct laboratory mechanical tests on undisturbed soft clay under complex stress conditions. [0003] The hollow torsional shear instrument can study the anisotropic mechanical properties of the soil under complex stress paths, and realize the simulation of the actual soil principal stress direction by indepen...

Claims

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Application Information

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IPC IPC(8): G01N1/28
CPCG01N1/28
Inventor 孙苗苗方华建刘勇潘玉涛王伟郑晴晴周联英
Owner ZHEJIANG UNIV CITY COLLEGE
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