分析了“L”型充填管道磨损、堵爆管机理,认为充填料浆在自由下落阶段的冲击是输浆管道磨损的主因,充填料浆在空气-砂浆的交界面处以及垂直管和水平管交界处的管壁容易发生破管事故,垂直管和水平管的交界处容易发生爆管事故。据此提出了“L”型充填管道的技术优化方案并对各部分的原理进行阐述。 The wear and detonating mechanism of “L” type filling pipe was analyzed. It was considered that the impact of filling slurry in freefall phase was the main reason of slurry pipe wear. The filling slurry at the air-mortar interface and vertical pipe and Pipe wall at the junction of the horizontal pipe is prone to breaking the pipe accident, vertical pipe and horizontal pipe junction prone burst pipe accident. Based on this, the technical optimization scheme of “L” type filling pipe is proposed and the principle of each part is expounded.