离层是上覆岩层移动的必然结果，在离层中充填可固结的注浆材料便可大大减缓地表沉陷。本文详细论述了离层带高压充填注浆技术的设备与工艺、注浆材料的选择以及注浆参数的确定。 Departure is the inevitable result of the overlying strata movement. Filling the consolidated grouting material in the strata can greatly reduce the surface subsidence. This paper discusses in detail the equipment and process of high-pressure filling grouting technology in delamination zone, the selection of grouting material and the determination of grouting parameters.