Quantitative safety evaluation of drilling engineering by combining analytic hierarchy process with alternating condition expectationFan Kunkun, Wang Fangxiang, Wang Chunguang, Chen Shaojie, Lin Hai, He Jia and Chen ZhongweIE3S Web Conf., 303 (2021) 01038DOI: https://doi.org/10.1051/e3sconf/202130301038