Author(s)

Lingren Meng ¹

Affiliation(s)

¹ Shandong Univ Sci & Technol, Coll Energy & Min Engn, Qingdao, Shandong, China

Corresponding Author

Lingren Meng

ABSTRACT

To explore the pattern of side abutment pressure distribution under the condition of coal thickness variation in the same working face, the 7202 working face of Tianchen Coal Mine is taken as the background. The rock mechanics parameters obtained from rock mechanics experiments are used, and the method of numerical simulation is applied for the study. The results show that there is a nonlinear relationship between coal seam thickness and the peak value of side abutment pressure as well as its position. With the increase of the coal seam mining thickness, the peak value of side abutment pressure decreases, and its position moves further away from the coal wall, indicating that the peak position moves deeper into the coal wall with the increase of coal seam thickness. This indicates that as the coal seam thickness increases, the peak position of side abutment pressure shifts away from the coal wall direction, and this shift does not present a simple linear relationship.

KEYWORDS

Side abutment pressure, numerical simulation, coal thickness variation

CITE THIS PAPER

Lingren Meng, Research on the Change Law of Side Abutment Pressure Distribution in Stope with Coal Thickness Variation. Journal of Civil Engineering and Urban Planning (2024) Vol. 6: 37-42. DOI: http://dx.doi.org/10.23977/jceup.2024.060105.

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