Advances in Civil Engineering / 2021 / Article / Fig 1

Research Article

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

Figure 1

Schematic diagram of four-neighborhood relationships on working face of 311102.

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