Research Article
Construction of Grading System of Grouting Effect in Coalmine Roadway Based on Multi-index Comprehensive Evaluation
Liu Yi fang*
Issue:
Volume 10, Issue 4, August 2025
Pages:
75-83
Received:
16 May 2025
Accepted:
17 June 2025
Published:
7 July 2025
Abstract: Aiming at the problems of complex evaluation indexes and lack of systematic grading standards for grouting effect in underground roadways of coalmines, this study proposes a grouting effect grading system based onmulti-index comprehensive evaluation. By incorporatingmulti-dimensional indicators into the grouting effect evaluation system, the limitations of the traditional single index evaluationmethod are overcome. A dynamic classification standard suitable for different geological conditions (aquifer / fracture zone / high stress zone) was established for the first time. Through literature analysis, expert consultation and field test, an evaluation system including five core indexes such as penetration depth, bond strength, water plugging rate, surrounding rock deformation inhibition rate and durability was constructed. The analytic hierarchy process (AHP) was used to determine the index weight, and the grouting effect classificationmodel was established by combining the fuzzy comprehensive evaluationmethod. In practical application, the grading system not only helps to optimize the grouting process parameters, improve the grouting effect, but also provides a strong guarantee for roadway safety. Taking the underground roadway grouting project of a coalmine in Shanxi as an example, the applicability of the grading system is verified. The results show that the system can scientifically quantify the grouting effect, and the classification results are consistent with the engineering practice, which provides a newmethod for the evaluation of grouting quality in coalmine roadway.
Abstract: Aiming at the problems of complex evaluation indexes and lack of systematic grading standards for grouting effect in underground roadways of coalmines, this study proposes a grouting effect grading system based onmulti-index comprehensive evaluation. By incorporatingmulti-dimensional indicators into the grouting effect evaluation system, the limita...
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