Study on Optimal Conventional Triaxial Strength Criterion of Rock Based on Gauss-Newton MethodMengtao Tian, Baohua Guo, Zhezhe Zhang, Chuangwei Zhu and Pengbo ZhongE3S Web Conf., 631 (2025) 01002DOI: https://doi.org/10.1051/e3sconf/202563101002