大尹格庄金矿床的形成涉及到构造变形、流体活动、热量传递和水岩反应等过程的相互耦合作用。利用FLAC^3D数值模拟软件，结合现代矿化率概念，开展了大尹格庄金矿床力—热—流—化耦合的数值模拟，以探讨断裂、体积形变与化学过程耦合对金矿体就位的控制作用。研究结果表明：正体积应变、流体汇聚和金析出量（负矿化率）的高值区均位于控矿招平断裂倾角由陡倾向缓倾转换部位以及断裂局部起伏部位，与金矿体的实际空间分布相吻合，反映出成矿流体更多地汇聚、停留在这些部位，并发生强烈的化学反应，引起金的沉淀析出。这种多物理—化学过程在相同部位的耦合可能是控制大尹格庄金矿床形成的关键因素，基于该成矿规律，推测大尹格庄金矿区深部具有较大的成矿潜力。

The formation of the Dayingezhuang gold deposit involves the coupled effects of tectonic deformation，pore-fluid transport，heat transfer，and hydrogeochemical reactions.In this paper，FLAC^3D nume-rical simulation software and modern mineralization rate concept were used to carry out numerical simulation of force-heat-fluid-chemical coupling of Dayingezhuang gold deposit，so as to explore the controlling effect of fracture structure，bulk deformation，and chemical process coupling on the emplacement of gold orebody.The simulation results demonstrate the following findings： From the perspective of physical process，the steep-slow transition and its local undulation zones along the Zhaoping fault tend to develop larger volume strains with differences of up to 1% compared to the surrounding rocks.This uneven strain distribution leads to the formation of uneven ore-holding spaces and pore pressure variation distribution.Significantly differences between high values of positive and negative pore pressure gradients are observed near the zones with large volume strains，while the differences in other zones are less notable.From the perspective of chemical process，mineralizing fluids tend to converge and stagnate at sites with high volume strain during their migration from the deep to the shallow parts.This convergence of mineralizing fluids leads to a greater precipitation of gold orebodies （mineralization rate less than 0），indicating the occurrence of intense water-rock reactions.In contrast，the areas where the mineralizing fluids don’t converge exhibit a predominance of positive mineralization rate dis-tribution，suggesting the absence of significant gold orebody precipitation.Furthermore，the ROC curve analysis with an AUC value of 0.815 provides quantitative evidence of the strong correlation between the mineralization rate and known gold orebodies，suggesting that this coupling of multiple physical-chemical processes at the same sites may be a key factor governing the formation of Dayingezhuang gold deposit. Based on these observations，it can be inferred that the deep-seated regions of Dayingezhuang deposit hold considerable mineralization potential.