Rock strength prediction system and method based on lithofacies characteristic analysis

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...

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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.

Although these methods can be carried out on the engineering site, there are problems such as large amount of testing, large dispersion of test results, and low accuracy of calculation results.

In addition, the above-mentioned various test methods are related to mechanics, and the relevant strength parameters can only be obtained after the target rock mass is destroyed, which is damaging and disturbing to the target rock mass.

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