As a new tool of hard rock breaking, abrasive slurry jet (ASJ) is of great potential in tunneling and mining. Therefore, this paper presents a new system, shearer drum assisted by ASJ, to exploit thin seam with complex geology, in which coal rock will be broken by the coupled forces of ASJs and cutting picks. Then, an orthogonal experiment is carried out to study the effects of parameters (mass fraction of polymer additives, jet pressure, impact angle, standoff distance, and impact time) on the ASJ ability in rock breaking. Furthermore, a prediction model is established to quantify the rock breaking ability of ASJ with different parameters based on the multivariable linear regression method. Results show that only impact angle has a significant effect on the crushing pit width, and the jet pressure, impact angle, and impact time are the significant effect parameters on the crushing pit depth. The conclusions can provide theoretical and data support for designing the most efficient system of ASJ and shearer drum in thin seam exploiting.

作为坚硬岩石破碎的新工具，磨料浆射流（ASJ）在隧道和采矿中具有巨大潜力。因此，本文提出了一种新的系统，ASJ辅助的采煤机滚筒，用于开采具有复杂地质特征的薄煤层，在该系统中，ASJ和采掘镐的耦合力会破坏煤岩。然后，进行正交试验以研究参数（聚合物添加剂的质量分数，射流压力，冲击角，支座距离和冲击时间）对ASJ破岩能力的影响。此外，基于多元线性回归方法，建立了一个预测模型，以量化不同参数的ASJ的破岩能力。结果表明，只有冲击角对破碎坑的宽度有显着影响，射流压力，冲击角，冲击时间和冲击时间是对破碎坑深度的重要影响参数。这些结论可为设计薄煤层开采中最有效的ASJ和采煤机滚筒系统提供理论和数据支持。