Parallel hydraulic type triaxial sample preparation device and sampling method thereof

A triaxial sample, hydraulic technology, applied in the field of soil mechanical performance testing of civil engineering, can solve the problems of sample uniformity and easy damage, and achieve the effect of convenient sample unloading and high efficiency

Active Publication Date: 2013-02-13
SHAOXING UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a parallel hydraulic triaxial sample preparation device and its sample preparation method to solve the defects of prior art sample uniformity an

Method used

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  • Parallel hydraulic type triaxial sample preparation device and sampling method thereof
  • Parallel hydraulic type triaxial sample preparation device and sampling method thereof
  • Parallel hydraulic type triaxial sample preparation device and sampling method thereof

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Example Embodiment

[0032] Such as Figure 1 ~ Figure 3 As shown, the parallel hydraulic three-axis sample preparation device of this embodiment includes a base 1, a portal support 2, a hydraulic system 3, a sample preparation cylinder 4, and a reaction pad 5. The door-shaped bracket 2 is installed on the base 1, and the hydraulic system 3 is installed on the door-shaped bracket 2. A reaction beam 21 is horizontally installed at the lower part of the portal-shaped support 2, and there are several sample unloading holes 22 on the reaction beam 21. In this embodiment, there are three sample unloading holes 22; the hydraulic system 3 includes a hydraulic applicator 31. Pressure transmission rod 32, pusher 33, stopper 34, horizontal beam 35; sample preparation cylinder 4 is a cylindrical hollow cylinder; reaction pad 5 includes reaction force transverse plate 51, upper protrusion 52, and lower side Protruding 53.

[0033] The inner diameter of the sample preparation cylinder 4 is 3.91 cm the same as th...

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Abstract

The invention discloses a parallel hydraulic type triaxial sample preparation device and a sampling method thereof, belonging to the technical field of soil mass mechanics performance testing. The parallel hydraulic type triaxial sample preparation device comprises a base, a door-shaped bracket, a hydraulic system, a sampling cylinder and a counter-force pad, wherein the door-shaped bracket is installed on the base; the hydraulic system is installed on the door-shaped bracket; a horizontal counter-force cross beam is installed at the lower part of the door-shaped bracket; a sample unloading round hole is formed in the counter-force cross beam; the hydraulic system comprises a hydraulic implementer, a pressure transmission rod, a push head, a stopper and a horizontal beam; the sampling cylinder is a cylindrical hollow cylinder body; and the counter-force pad comprises a counter-force cross plate, an upper side bulge and a lower side bulge. With the adoption of the parallel hydraulic type triaxial sample preparation device, the defect that a traditional sample preparation device cannot sufficiently compress the soil mass with uniform density is overcome; not only are the overall density of a sample and the consistency of the samples precisely controlled, but also 1-3 samples can be prepared once with high efficiency; and the samples can be unloaded conveniently.

Description

Technical field: [0001] The invention relates to a parallel hydraulic triaxial sample preparation device and a sample preparation method thereof, belonging to the field of soil mechanical performance testing in the civil engineering discipline. Background technique: [0002] At present, with the increase of construction projects on soft soil foundations in coastal areas, land resources are becoming increasingly scarce, and the test of soft soil mechanical properties has become an important content in civil engineering. When testing the triaxial mechanical properties of soft soil in the laboratory, it is usually made into a cylindrical standard sample with a diameter of 3.91 cm and a height of about 8.0 cm, and a set of experiments requires 3 to 5 standard samples to simulate 3 to 5 a different confining pressure. During the sample making process, it needs to be compacted evenly to achieve the designed compactness. Laboratory sample production usually adopts manual compacti...

Claims

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Application Information

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IPC IPC(8): G01N1/28
Inventor 王伟
Owner SHAOXING UNIVERSITY
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