With the deepening of underground resource exploitation, the application of cemented backfill pipeline transportation of mineral tailings has become the best option to reduce the risk of deep ground pressure and solid waste pollution. Research in this field is mainly centred on slurry fluidity experiments. However, the slurry transportation parameters, particle characteristics and complexity of the pipeline all cause uncertainty in the calculation of backfill pipeline transportation parameters. The conventional backfill loop test is expensive. Combining structural fluid tests with particle flow models, this paper presents a method to optimize backfill pipeline transportation parameters. The H-B model is employed to analyse the transportation resistance of backfill slurry along the line to establish the relation function between the resisting force and the parameters. Adoption of a custom function improves the accuracy of the inter-phase drag model and the erosion effect. This paper analyses the flow state of the high-concentration solid-liquid dense phase fluid in backfill gravity transportation to obtain optimized transportation parameters. The research results improve the accuracy of the calculation of the backfill pipeline transportation parameters, which can be effectively applied in the optimal design of high-concentration slurry backfill pipeline transportation.

随着地下资源开发的深入，矿渣尾矿的水泥回填管道运输已成为降低深部地压和固体废物污染风险的最佳选择。该领域的研究主要集中在浆料流动性实验上。然而，泥浆输送参数，颗粒特征和管道的复杂性都给回填管道输送参数的计算带来不确定性。传统的回填回路测试很昂贵。结合结构流体试验和颗粒流模型，提出了一种优化回填管道运输参数的方法。利用HB模型对回填浆液沿线的输送阻力进行分析，建立了阻力与参数之间的关系函数。采用自定义函数可提高相间阻力模型的准确性和腐蚀效果。分析了高浓度固液致密相流体在回填重力输送中的流动状态，以获得优化的输送参数。研究结果提高了回填管道输送参数计算的准确性，可有效地应用于高浓度矿浆回填管道输送的优化设计。分析了高浓度固液致密相流体在回填重力输送中的流动状态，以获得优化的输送参数。研究结果提高了回填管道输送参数计算的准确性，可有效地应用于高浓度矿浆回填管道输送的优化设计。分析了高浓度固液致密相流体在回填重力输送中的流动状态，以获得优化的输送参数。研究结果提高了回填管道输送参数计算的准确性，可有效地应用于高浓度矿浆回填管道输送的优化设计。