Based on elastoplastic theory, using stress differential equilibrium and Coulomb Criterion, the authors obtained width of pillar limit equilibrium zone.Validated by practice the formulati...

• 以弹塑性力学为基础,结合应力平衡微分方程和库仑准则求出了保留条带煤柱的应力极限平衡区宽度及其理论公式,理论公式经实践验证能满足现场要求。