Test device for testing the coefficient of expansion of soil
A technology of expansion coefficient and test device, used in soil material testing, material inspection products, etc., can solve the problems of low precision, inaccurate expansion coefficient, inconvenient compaction operation, etc., and achieve accurate expansion coefficient and accurate volume change. Effect
Active Publication Date: 2022-08-02
山东贝特建筑项目管理咨询有限公司
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[0004] 1. Due to the reduced shrinkage of the soil sample, the pressure plate only produces a small displacement due to the small shrinkage of the soil sample during the pressure application process, and because of the small displacement, the obtained The accuracy of the displacement is low, which in turn causes the measured expansion coefficient to be inaccurate
[0005] 2. After loading the soil sample into the above device, the soil sample is usually compacted with tools such as a heavy hammer, and the compaction operation is very inconvenient
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[0036] Unless otherwise defined, technical or scientific terms used in the present invention shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present invention belongs. The terms "first," "second," and similar terms used herein do not denote any order, quantity, or importance, but are merely used to distinguish different components. "Comprises" or "comprising" and similar words mean that the elements or things appearing before the word encompass the elements or things recited after the word and their equivalents, but do not exclude other elements or things. Words like "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "Down", "Left", "Right", etc. are only used to represent the relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change ac...
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The invention discloses a test device for testing the expansion coefficient of soil. is arranged in the chamber; the pressure plate includes two, and the two pressure plates are respectively arranged at both ends of the cylinder and protrude into the chamber; the pressing mechanism includes two , the two pressing mechanisms are respectively used to apply pressure to the two pressure plates and obtain the applied pressure through the pressing process; the displacement detection device includes two, and the two position detection devices are respectively used for It is used to detect the displacement of the platen during the compression process.
Description
technical field [0001] The invention relates to a test device for testing the expansion coefficient of soil. Background technique [0002] In the field of building construction, the expansion coefficient of the soil in the construction area needs to be predicted. For this reason, a test device for testing the soil expansion system has appeared in the prior art. The device includes a rectangular box with an open upper end and A pressure plate extending from the upper end of the box body to the box body, and the pressure plate is pressed by a screw. A soil sample is installed in the box, and the expansion coefficient of the soil sample is obtained through the pressure test of the pressure plate. [0003] The above-mentioned device has the following defects in measuring the expansion coefficient of soil samples: [0004] 1. Because the shrinkage of the soil sample is reduced, the pressure plate has a small shrinkage of the soil sample during the pressure application process, ...
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IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 李宝玉邢芳李东博李树慧付晓双
Owner 山东贝特建筑项目管理咨询有限公司