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Rotatable rock-soil testing machine

A testing machine and geotechnical technology, which is applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, instruments, etc., can solve the problems of inapplicability of large-scale geotechnical testing machines, and achieve the effect of ensuring uniformity

Inactive Publication Date: 2012-06-13
BEIJING JIAOTONG UNIV
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  • Abstract
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Problems solved by technology

But it is only suitable for occasions where the axial pressure and confining pressure are small, and it is not suitable for large geotechnical testing machines

Method used

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  • Rotatable rock-soil testing machine
  • Rotatable rock-soil testing machine
  • Rotatable rock-soil testing machine

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Embodiment Construction

[0038] Attached below Figure 1 to Figure 11 And embodiment the present invention is described in further detail.

[0039] A rotatable geotechnical testing machine, comprising: a hydraulic cylinder 14 installed in the center of the inner cavity of a base 12, a hydraulic loading system 13, a sample cylinder 18, and an upper top plate 21. The lower ends of the four columns 16 are fixedly connected in the four column holes at the four corners of the base 12, and the lower top plate 11 is movably socketed on the bottom of the four columns 16, and can slide vertically along the four columns 16. Play a guiding role to the lower top plate 11, such as figure 1 shown. The tops of the four columns 16 are fixedly sleeved in the four column holes at the four corners of the upper top plate 21 .

[0040] Place the lower plunger 9, the lower gasket 17, the rock and soil sample 8, and the upper gasket 19 in the cylinder at the bottom of the sample cylinder 18 in sequence, and place the upp...

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Abstract

A rotatable rock-soil testing machine relates to rock-soil testing machine equipment. A lower flange of a sample cylinder (18) is connected with a downward thrust aligning roller bearing (15) through a pedestal (10) under the cylinder; an upper flange of the sample cylinder (18) is connected with a main shaft (4) through a left side plate and a right side plate (20,16); a bull gear (2) is connected with the main shaft and engaged with a gear on a pinion shaft (3); a motor (1) is connected with the pinion shaft through a reduction box (30) and a shaft coupling (29); and rotation of the main shaft (4) drives the sample cylinder (18) and the pedestal (10) under the cylinder to rotate together, so as to realize rotation of a rock-soil sample (8). The rotatable rock-soil testing machine solvesa rotation problem during axial loading of the rock-soil sample (8), so as to facilitate application of industrial CT continuous scan on internal dynamics of the rock-soil sample during axial loadingand benefit deepening of research on rock-soil mechanics.

Description

technical field [0001] The invention relates to a rock and soil testing machine equipment, which belongs to the technical field of experimental devices, in particular to a rock and soil testing machine for testing the mechanical properties and deformation process of rock and soil by using CT scanning technology. Background technique [0002] The rock and soil testing machine is a basic scientific test instrument for studying the stress and strain relationship of rock and soil. It is composed of an axial pressure system, a confining pressure system and a temperature control system. The sample force is applied to the sample through the pressure chamber, and at the same time, the upper and lower end surfaces of the sample and the middle of the sample are respectively placed in different temperature environments through the temperature control system, thereby simulating various conditions of the sample at different temperatures. Actual working conditions. However, the tradition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12G01N3/02
Inventor 周明连何忠良刘庭伟武璐梁彤芬
Owner BEIJING JIAOTONG UNIV
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