Remolded soil layered compaction sample preparation device and method for indoor triaxial test
A triaxial test and soil reshaping technology, applied in the preparation, sampling, and instrumentation of test samples, can solve the problems of easy error, interference of measurement accuracy, time-consuming and laborious, etc. simple effect
Active Publication Date: 2021-02-19
GUILIN UNIVERSITY OF TECHNOLOGY
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Problems solved by technology
At present, the height of the soil sample is generally controlled by observing the scale of the ruler or vernier caliper, which is time-consuming and laborious, and the measurement accuracy is easily disturbed by human factors, which is prone to errors
Method used
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Embodiment Construction
[0041] The following will be described in detail in conjunction with the accompanying drawings and embodiments.
[0042] 1. Sample preparation device
[0043] 1. Overall
[0044] Such as figure 1 , 2 , the sample preparation device includes a base 1, a compaction cylinder 2 and a limit compaction cover 3;
[0045] From bottom to top, base 1, compaction cylinder 2 and limit compaction cover 3 are connected in sequence
[0046] 2. Functional components
[0047] 1) Base 1
[0048] Such as image 3 , the base 1 is a short cylinder, the outer diameter of the base 1 is consistent with the outer diameter of the outer sleeve 21;
[0049] The inner diameter of the base 1 is adapted to the outer diameter of the soil sample forming cylinder 22, that is, the top surface of the base 1 has a notch of the base 1 that the bottom end of the soil sample forming cylinder 22 of the compacting cylinder 2 falls into, which contributes to a better Firmly fix the compaction cylinder 2.
[00...
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Abstract
The invention discloses a remolded soil layered compaction sample preparation device and a method thereof for indoor triaxial tests, and relates to the sample preparation technology of indoor triaxial tests. The sample preparation device includes a base, a compacting cylinder and a limit compacting cover; from bottom to top, the base, the compacting cylinder and the limit compacting cover are connected in sequence; the base is a short cylinder; the The compaction cylinder includes an external sleeve, a soil sample forming cylinder and a clamp bolt; the space-limiting compaction cover includes a top cover and a space-limiting post connected up and down. The invention can ensure that the thickness of each layer of the sample is uniform and the relative density is uniform; it can be used repeatedly, and samples of other specifications can be made by changing the structure and size of the parts; the sample preparation device has simple structure, convenient disassembly and assembly, simple operation and low cost , long life, accurate sample preparation, high efficiency and reliability, and little interference from human factors; the sample preparation method is easy to master, has strong versatility, saves time and effort, and is convenient and quick.
Description
technical field [0001] The invention relates to a sample preparation technology for an indoor triaxial test, in particular to a remolded soil layered compaction sample preparation device and a method for the indoor triaxial test. Background technique [0002] Various indicators required for engineering construction can be obtained through indoor tests, so as to be preserved as design and construction materials. Generally, before the triaxial test, it is necessary to prepare the test soil sample according to the geotechnical test regulations. In soil engineering tests, test soil samples can be divided into original samples and remodeled samples. The undisturbed sample is the sample of underground soil layer or rock ore layer that has not been disturbed by external force and maintained the original structure taken out by drilling. The original sample can better reflect the original structure and mechanical properties of the soil; however, sampling is difficult, the sample is...
Claims
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IPC IPC(8): G01N1/28
CPCG01N1/286
Inventor 梁维云赵续月颜荣涛杨德欢韦昌富
Owner GUILIN UNIVERSITY OF TECHNOLOGY