## 1 Introduction  
In China, coal will maintain its status as the principal energy source for quite a long time [1]. As China's strategic coal reserve plan is gradually improving and high-quality coal resources occurring in good conditions are being depleted, there is currently a growing demand for thick coal seams buried in complex geological conditions. Coal seams with large dip angles account for an estimated 15-20% of China's proven recoverable coal reserves and their annual production makes up 10% of the country's total coal production [2]. Coal seams with large dip angles form in complex conditions and are unstable [3, 4, 5]. Coalfaces in such coal seams often encounter faults and other difficult geological structures as they advance. The rock masses around faults are normally fragmented due to tectonic stresses [6, 7], adding to the difficulty of controlling the roof and posing a safety threat as a coalface advances through a fault [8, 9]. Other problems associated with faults include the slow advance of a coalface, the large volume of waste rock produced, and the low recovery rate, which have a strong adverse impact on production efficiency [10; 11]. Therefore, the technical difficulty of moving past faults in front of coalfaces quickly must be tackled in order to achieve safe and efficient production. Currently, ensuring safety while achieving rapid fault pass through at the coalface has become a focus of research for many scholars. [PERSON] et al. [12] developed a mechanical model for coal pillar protection in fault zones, analyzed tectonic stress distribution and stability factors, and proposed a perimeter rock control method combining \"slant mining\" and \"grouting\". [PERSON] et al. [13] used the UDEC Voronoi numerical model to study the progressive damage of surrounding rock structures when mining through a fault and pro-posed a damage index suitable for engineering applications. [PERSON] et al. [14] studied the impact of fault dip and drop on coal pillar strength and quarry enclosure stability using DEM and statistical analysis. [PERSON] et al. [15] analyzed stress distribution in the quarry under different fault structures through similar simulation experiments and improved perimeter rock stability by enhancing support. [PERSON] et al. [16] explored the fault crossing method using FLAC3D and validated its effectiveness in crossing the fault zone with the \"portal bracket + top-cutting and shielding bracket\" support method. [PERSON] et al. [17] used a machine learning algorithm, preferring the gradient boosting decision tree method, to predict surrounding rock deformation in the fault area, providing guidance for precise control of the sur-rounding rock in the quarry over the fault. [PERSON] and [PERSON] [18] applied loose blasting technology to fault penetration in the comprehensive mining face, achieving non-repetitive cutting by optimizing blasting parameters and processes. [PERSON] et al. [19] proposed pre-digging single lane over fault technology, using reasonable \"replacement\" of excavated gangue and coal to achieve rapid, gangue-free coal mining over the fault. [PERSON] and [PERSON] [20] proposed adjusting the coal cutting height for small drop faults by leaving top or bottom coal to pass through the fault, then gradually mining the top and bottom to restore the original mining height. [PERSON] and [PERSON] [21] proposed two methods, \"roof broken\" and \"floor broken\", for the coalface pass through fault. Through FLAC simulation analysis, they concluded that both methods require focus on area protection and applicable conditions. [PERSON] and [PERSON] [22] proposed an \"avoidance and concession\" method for the coalface, adjusting the two alleys and the position of the coal mining face according to the fault's spatial pattern to minimize or eliminate rock cutting. The traditional approaches mentioned above are normally applicable only under certain geological conditions, and possess some unavoidable weaknesses.