Advances in Civil Engineering / 2021 / Article / Tab 3

Research Article

Study on the Retention of Large Mining Height and Small Coal Pillar under Thick and Hard Roof of Bayangaole Coal

Table 3

Calculation results of principal stress at each measuring point of Bayangaol mine.

PointDepth (m)Maximum principal stress (σmax)Intermediate principal stress (σmid)Minimum principal stress (σmin)
Numerical (MPa)Direction (°)Dip angle (°)Numerical (MPa)Direction (°)Dip angle (°)Numerical (MPa)Direction (°)Dip angle (°)


Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.