1. Meng, Z., Li, G. & Xie, X. A geological assessment method of floor water inrush risk and its application. Eng. Geol. 143–144, 51–60 (2012).
2. Wu, Q. et al. Method for assessing coal-floor water-inrush risk based on the variable-weight model and unascertained measure theory. Hydrogeol. J. 10, 1–15 (2017).
3. Wu, Q. et al. Assessment of water inrush vulnerability from overlying aquifer using GIS–AHP-based ‘three maps–two predictions’ method: a case study in Hulusu coal mine, China. Q. J. Eng. Geol. Hydroge. 48, 234–243 (2015).
4. Liu, T. Coal Mine Ground Movement and Strata Failure. Coal Industry Publ. House, Beijing, China (1981).
5. Hu, X., Li, W., Cao, D. & Liu, M. Index of multiple factors and expected height of fully mechanized water flowing fractured zone. J. China Coal Soc. 37, 613–620 (2012).