In response to the challenges of supporting fractured and weak surrounding rock in deep coal mines in the Huainan region of China, a self-moving hydraulic support system for roof support was designed and developed. This innovative solution addresses the difficulties encountered in providing continuous support to roof structures. Based on the theory of elastoplastic mechanics, a numerical analysis model was established to calculate the mechanical parameters such as the displacement, stress, and strain of hydraulic supports during the stepping process under multiple operating conditions. The results of the numerical simulation were compared and verified with those from an actual working site. The results show that the maximum equivalent stress is 245.33 MPa for operating condition 1, 246.82 MPa for operating condition 2, and 245.27 MPa for operating condition 3. The maximum stress values under the three working conditions do not exceed the yield strength of the material, satisfying the requirements for normal bracket support operations. These research findings can establish a theoretical framework for the comprehensive assessment of the reliability and stability of hydraulic supports and the optimization of construction processes.

针对淮南地区深部煤矿破碎软弱围岩支护挑战，设计开发了顶板支护自移动式液压支护系统。这种创新的解决方案解决了为屋顶结构提供持续支撑时遇到的困难。基于弹塑性力学理论，建立数值分析模型，计算多种工况下液压支架步进过程中的位移、应力、应变等力学参数。数值模拟结果与实际工况进行了对比验证。结果表明，工况1的最大等效应力为245.33 MPa，工况2的最大等效应力为246.82 MPa，工况3的最大等效应力为245.27 MPa。三种工况下的最大应力值均未超过材料的屈服强度，满足正常支架支撑操作的要求。这些研究成果可以为液压支架可靠性和稳定性的综合评估以及施工工艺的优化建立理论框架。