Method and device for determining impact liability of coal rock sample based on size effect
CN116660023BActive Publication Date: 2026-02-27CCTEG COAL MINING RES INST +2
Patent Information
- Application Number
- CN202310473087.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-27
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2043-04-27
AI Technical Summary
Technical Problem
Existing methods for determining the impact tendency of coal and rock result in an unreasonable and inaccurate final impact tendency, lacking consideration of the size effect of coal and rock samples.
Method used
By determining the different sizes and impact tendency index values of various coal and rock samples, the standard deviation of the impact tendency index is calculated, and the impact tendency of the coal and rock samples is evaluated using the judgment matrix, the largest eigenvalue, and the normalized eigenvector.
Benefits of technology
It improves the accuracy and rationality of impact tendency determination, fully considers the size effect of coal and rock samples, and provides a more reasonable and accurate impact tendency assessment.
✦ Generated by Eureka AI based on patent content.
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Figure CN116660023B_ABST
Abstract
The application provides a coal rock sample impact tendency determination method and device based on size effect, which comprises the following steps: determining multiple coal rock samples according to an original coal rock sample, the sizes of any two coal rock samples corresponding to each other are different, and each coal rock sample corresponds to multiple impact tendency indexes; determining the impact tendency index value corresponding to each of the multiple coal rock samples for any impact tendency index; determining the standard deviation corresponding to the impact tendency index according to multiple impact tendency index values; and determining the impact tendency corresponding to the original coal rock sample according to multiple standard deviations. The method is used to solve the defect that the existing coal rock impact tendency determination method leads to the impact tendency obtained finally being unreasonable and inaccurate, and fully considers the influence of the size effect of the coal rock sample on the impact tendency index in the process of determining the impact tendency of the coal rock sample, so that the impact tendency obtained finally is more reasonable and accurate.
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Citation Information
Patent Citations
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