Rock strength prediction system and method based on lithofacies characteristic analysis

A technology for strength prediction and feature analysis, applied in the field of rock mechanical property determination, which can solve the problems of low accuracy of calculation results, time-consuming and laborious, and damage to the target rock mass.

Active Publication Date: 2021-05-14
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method needs to collect on-site standard rock samples and transport them to the laboratory for testing, which is time-consuming and laborious, and the test results cannot guide the engineering site in time; while the indirect prediction method mainly determines the rock strength through related simple mechanical tests (point load test, block load test, etc.) Body impact index test and Schmidt hammer test, etc.

Method used

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  • Rock strength prediction system and method based on lithofacies characteristic analysis
  • Rock strength prediction system and method based on lithofacies characteristic analysis
  • Rock strength prediction system and method based on lithofacies characteristic analysis

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Embodiment 1

[0041] This embodiment provides a rock strength prediction system based on petrographic feature analysis, such as figure 1 As shown, it includes a supporting mechanism, a rotating mechanism, a grinding mechanism 5, a cleaning mechanism 6, a drying mechanism 7, a structure identification mechanism 8, a mineral analysis mechanism 9, a strength prediction system 10 and a control system. The grinding mechanism 5, the cleaning mechanism 6. The drying mechanism 7, the structure identification mechanism 8, and the mineral analysis mechanism 9 are all fixed to the rotation mechanism, and the rotation mechanism is fixed to the support mechanism; the structure identification mechanism 8, the mineral analysis mechanism 9 are connected to the strength prediction system 10.

[0042] Further, such as figure 2As shown, the support mechanism includes a ceiling 1 and a plurality of telescopic supports 2, and the plurality of telescopic supports 2 are evenly spaced and connected under the ceil...

Embodiment 2

[0061] This embodiment provides a rock strength prediction method based on petrographic feature analysis, using the prediction system described in Embodiment 1, such as Image 6 shown, including the following steps:

[0062] (1) After selecting the target rock mass to be measured, the prediction system is placed above the target rock mass to be measured, and the telescopic support 2 is adjusted so that the ceiling 1 is parallel to the surface of the rock mass to be measured, and at the same time it is installed on the turntable 4 Each mechanism is as close as possible to the rock mass to be tested; and a pressure F perpendicular to the target rock mass is applied above the ceiling 1 .

[0063] (2) Firstly, the hydraulic rod 5-1 in the grinding mechanism 5 is stretched out to ensure that the fine grinding wheel 5-3 sticks to the target rock mass to be measured; then start the second servo motor 5-2 to make the fine grinding wheel 5-3 fast Turn and grind the target rock mass. ...

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Abstract

The invention discloses a rock strength prediction system and method based on lithofacies characteristic analysis. According to the technical scheme, the rock strength prediction system comprises a rotating mechanism, and a grinding mechanism, a cleaning mechanism, a drying mechanism, a structure recognition mechanism and a mineral analysis mechanism are sequentially distributed in the circumferential direction of the rotating mechanism; and the structure identification mechanism and the mineral analysis mechanism are connected with the strength prediction system. The structural characteristics and the material components of the rock are rapidly acquired and quantitatively analyzed, and the machine learning algorithm is fused, so that accurate prediction of various strengths of the rock is finally realized.

Description

technical field [0001] The invention relates to the field of rock mechanical property measurement, in particular to a rock strength prediction system and method based on petrographic feature analysis. Background technique [0002] Rocks are the main body of the lithosphere on the surface of the earth's crust, and the main engineering and construction activities of human beings are mainly carried out on the lithosphere. Especially since entering the 21st century, which is called the century of underground engineering, people are contacting and transforming rock or rock masses unprecedentedly and extensively. As the main research object of human engineering construction activities, the study of its mechanical effects such as deformation, yield and failure under stress has become an important research topic. Rock compressive strength, as the main index reflecting the damage of rock by external force, is one of the most basic mechanical parameters of rock mass in underground en...

Claims

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Application Information

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IPC IPC(8): G01N21/84G01N21/65G01N21/01G01N1/44G01N1/34G01N1/28G06K9/62G06N20/00G06T7/00
CPCG01N21/84G01N21/65G01N21/01G01N1/286G01N1/34G01N1/44G06T7/0002G06N20/00G06F18/24G06F18/254
Inventor 许振浩谢辉辉王朝阳李轶惠石恒马文王文扬
Owner SHANDONG UNIV
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