Dry-type sampling method and device for easily-hydrolyzed brittle soft rock standard test piece

A standard test piece and sampling device technology, applied in the field of rock mechanics, can solve the problems of low sample preparation success rate, rock property change, high cost, and achieve the effect of reducing preparation cost, ensuring integrity and accuracy, and easy grinding

Pending Publication Date: 2022-06-28
CHONGQING INST OF GEOLOGY & MINERAL RESOURCES
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Problems solved by technology

[0003] The purpose of the present invention is to provide a dry sampling device and method for easily hydrolyzed brittle soft rock standard specimens, so as to solve the sample preparation success rate existing in the preparation of soft rock standard specimens by existing rock cylinder standard specimen preparation devices and methods Low cost, high cost, poor quality, affected by cooling water, and changes in rock properties

Method used

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  • Dry-type sampling method and device for easily-hydrolyzed brittle soft rock standard test piece
  • Dry-type sampling method and device for easily-hydrolyzed brittle soft rock standard test piece
  • Dry-type sampling method and device for easily-hydrolyzed brittle soft rock standard test piece

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Embodiment Construction

[0031] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples are only used to explain the present invention, but not to limit the scope of the present invention.

[0032] like Figure 1-Figure 4 As shown in the figure, the present invention is a dry sampling device for a standard specimen of easily hydrolyzed brittle soft rock. The sampling device includes a base 1, a processing chamber 2, a top module 3, a lower rotation module 4, an upper rotation module 5, and a longitudinal friction component 6. , radial friction assembly 7, loading control assembly 8; machining chamber 2 and base 1 are positioned and connected by bolts 9; machining chamber 2 and top module 3 are positioned and connected by adjustable bolts 10;

[0033] The lower rotating module 4 includes a rotating body 11, a connecting piece 12, and a rotating control block 13; the rotating control block 13 in the lower rotating block modul...

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Abstract

The invention relates to the technical field of rock mechanics, in particular to a dry-type sampling device and method for an easily-hydrolyzed brittle soft rock standard test piece, and the dry-type sampling device comprises a base and a top module which are connected with a processing chamber, a lower rotating module for supporting and fixing the bottom surface of a sample of an octagonal-prism-shaped soft rock block, and a friction assembly arranged on the side surface of the sample, the control assembly is electrically connected with the lower rotating module and the friction assembly and controls the lower rotating module and the friction assembly to move. The characteristics of low hardness and easy polishing of soft rock are utilized, low-strength cutting and polishing are adopted, no cooling water participates in and is not influenced in the whole process, and the defects that a soft rock sample is easy to crack, the physical and mechanical properties of the sample are changed and the like due to stress concentration caused by a traditional sampling method are avoided to the greatest extent; the integrity and the accuracy of physical and mechanical parameters of the soft rock sample are ensured to the greatest extent, and meanwhile, the sampling success rate of on-site rock blocks is improved.

Description

technical field [0001] The invention relates to the technical field of rock mechanics, in particular to a dry sampling device and method for a standard specimen of easily hydrolyzed brittle soft rock. Background technique [0002] Soft rock is a rock between loose medium and hard rock. It is widely distributed in the world, accounting for about 50% of all rocks on the earth's surface. Therefore, soft rock is closely related to most of human engineering construction, especially for dams. , the stability of tunnels and slopes play a controlling role. Research on the mechanical properties of soft rock is of great significance to the healthy and rapid development of my country's road and bridge, mining and other engineering construction as well as the prevention and control of geological disasters. To study the properties of rock mechanics, seepage and other properties, it is usually necessary to make the rock into a standard sample (usually φ50mm×100mm), so as to meet the samp...

Claims

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Application Information

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IPC IPC(8): G01N1/28
CPCG01N1/286G01N2001/2866
Inventor 康燕飞徐洪陈立川梁丹任世聪廖蔚茗李柏佚杨勇任晓虎
Owner CHONGQING INST OF GEOLOGY & MINERAL RESOURCES
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