随着三鑫金铜矿开采不断向深部延伸，其工程地质条件和矿体赋存状况恶化，地应力增大，地压显现加剧。此次研究借助现场巷道等的地压显现调查资料、地应力实测资料和室内岩石物理力学参数，利用 Flac3D软件模拟分析，探索整体地压分布规律。并确定了上盘、下盘脉外沿脉巷道到矿体边界的合理安全距离。优化采场结构参数，开采过程中的围岩维护方式，以便控制采场开采过程中的冒顶、塌方，从而避免采场过度贫化及上、下盘围岩过度岩移。提出充填体不接顶的限额指标，避免采空区顶板及充填体整体移动而产生地面开裂或塌陷。通过研究分析对深部开采地压控制提出了多项结论性意见，为三鑫金铜矿深部矿体安全高效开采提供了技术支持和理论依据。  

As mining in the Sanxin Gold-Copper Mine extends to deeper levels, the engineering geological condi-tions and orebody occurrence have worsened, with increasing in-situ stress and intensified ground pressure manifesta-tions. This study utilized field investigation data on ground pressure phenomena, in-situ stress measurements, and labo-ratory-derived physical and mechanical rock parameters. Using Flac"software for numerical simulation, the overall distribution pattern of ground  pressure was analyzed.  The  study determined the reasonable safety distance  from  the orebody boundaly to along-the-vein drifts in the hanging wall and footwall. It also optimized stope structural parameters and surrounding rock support methods  during extraction to control issues such as roof caving and collapses, therebypreventing excessive ore dilution and rock  mass displacement in both walls. A threshold for non-contact between the backfill and roof was proposed to avoid overall movement of the stope roof or backfill, which could result in surface cracking or subsidence. The research provides several conclusive recommendations for ground pressure control in deep mining, offering technical support and theoretical basis for the safe and efficient extraction of deep orebodies in the Sanxin Gold-Copper Mine.