For effective prevention of pipe blockage caused by segregation, a real-time electrical resistivity monitoring method is proposed. The cross-sectional horizontal electrical resistivity (HER) at different depths and diametrical electrical resistivity (DER) with different orientations of gangue-cemented paste backfill (GCPB) under different mass concentrations in pipe were investigated. The results show that HER can capture the real-time segregation characteristics. Under the action of segregation, the HER decline rate in the upper region is greater than that in the lower region at the early stage, and the derived segregation index (SI) gradually decreases. The HER difference in the stable HER change stage between layers decreases with an increase in the mass concentration. DER is less sensitive than HER, and can only distinguish the difference of the static stability between the GCPBs with lower mass concentrations (78% and 79%). Finally, the relationship between ER and aggregate distribution determined by image analysis was established.

为了有效防止偏析引起的管道堵塞，提出了一种实时的电阻率监测方法。研究了在不同质量浓度的管道中，不同深度的脉石水泥浆回填物（GCPB）在不同深度的横截面水平电阻率（HER）和不同方向的径向电阻率（DER）。结果表明，HER可以捕获实时隔离特征。在偏析的作用下，上部区域的HER下降率在早期阶段大于下部区域的下降率，并且得出的偏析指数（SI）逐渐降低。随着质量浓度的增加，层之间稳定的HER变化阶段中的HER差异减小。DER不如HER敏感，只能区分质量浓度较低（78％和79％）的GCPB之间的静态稳定性差异。最后，建立了ER与通过图像分析确定的骨料分布之间的关系。