Remoulded soil triaxial sample demoulding device and demoulding method thereof
A technology of triaxial sample and demoulding device, which is applied in the direction of unloading device, manufacturing tools, etc., can solve the problems of soil sample deformation, demoulding device without remodeling soil triaxial sample, etc., and achieve simple structure, The effect of saving preparation time and quick assembly and disassembly
Pending Publication Date: 2019-03-29
FUZHOU UNIVERSITY
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Problems solved by technology
[0004] The above-mentioned demoulding devices and methods all use demoulding one by one to avoid the greater frictional resistance of the samples. Although this method can prevent the samples from being damaged during the demoulding process to a certain extent, it is difficult to remove the second and third parts. When the valve is molded, it is very easy to deform the soil sample due to uneven force
And up to now, still do not have a kind of demoulding device for remodeling soil triaxial sample on the market
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[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0025] Such as Figure 1~4 As shown, a remolding soil triaxial sample demoulding device includes an annular base 10 and a cylindrical base 20 fixed coaxially in the middle of the annular base, and a plurality of directional guide rods are fixed on the outer periphery of the cylindrical base along the circumferential direction. 30. The upper end of the directional guide rod 30 is provided with a ring seat 40 formed by splicing multiple petal rings. The inner wall of the ring seat 40 is the same as the inner diameter of the side wall flange of the three-lobe mold. The bayonet 401 of the outer wall flange 101 of the mold 100 is equal in width to the outer wall flange 101 of the three-lobe mold 100 , and the ring seat 40 is parallel to the ring base 10 .
[0026] In this embodiment, there are three petal rings, and the petal rings includ...
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The invention provides a remoulded soil triaxial sample demoulding device and a demoulding method thereof. The demoulding device comprises an annular pedestal, a cylindrical pedestal coaxially fixed to the middle of the annular pedestal, and a plurality of directional guide bars fixed to the periphery of the cylindrical pedestal and distributed in the circumferential direction; a ring base formedby splicing three sectional rings sleeves the upper ends of the directional guide bars, the inner wall of the ring base formed by the inner diameter parts of the three sectional rings has the same inner diameter as a flange on the side wall of a three-section mould, the inner side wall of the ring base is provided with a bayonet capable of clamping the flange on the outer side wall of the three-section mould, and the bayonet has the same width as the flange on the outer side wall of the three-section mould; the ring base is parallel to the annular pedestal. The remoulded soil triaxial sample demoulding device can be used for demoulding triaxial samples with different diameters as long as the sizes of different parts are made matched with the sizes of different triaxial samples respectively.
Description
technical field [0001] The invention relates to a demoulding device and a demoulding method for a remolded soil triaxial sample. Background technique [0002] Conventional triaxial test is a very important test method in the field of geotechnical engineering, and it is an effective method to measure the mechanical properties of soil. For the triaxial test of remolded soil, the quality of sample preparation has a great influence on the test accuracy and data reliability. The three-lobe mold of the traditional remodeling soil sample preparation mold is composed of three 1 / 3 annular mold petals and a collar. After the sample preparation is completed through layered compaction, the collar is removed and inserted into the other side wall of the three-lobe mold At the flange part, apply external force to the collar to dismantle the three-lobe mold at one time and take out the sample. This sampling method has obvious defects in actual operation. The side wall or top surface of th...
Claims
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Login to View More IPC IPC(8): B28B13/06
CPCB28B13/065
Inventor 马宏岩庄渊龙陈富明程沛媛周佳伟
Owner FUZHOU UNIVERSITY