Abstract:Optimizing the arrangement and selection of the filling pipe network not only extends the service life of the pipe, but also saves construction costs. This paper takes the 900 mL filling of southeast ore body of Chambishi Copper Mine as an engineering case to investigate the solutions to study the construction difficulty, pressure distribution and full pipe rate of three filling pipe network arrangement schemes, based on indoor experiments and resistance models. The research shows that after the inner diameter of the filling pipeline is changed from 175 mm to 152 mm, the maximum pipeline pressure of the three schemes is increased from 2.70 MPa, 2.40 MPa and 3.66 MP to 4.42 MPa, 3.97 MPa and 5.80 MPa respectively, which increases resistance along the pipeline within the pressure range of the pipeline. Reducing the pipe diameter increases the full pipe rate of the first hole from 8%, 7%, 16% to 24%, 19%, 37%, and the full pipe rate of the second hole is 100%, reducing the wear risk of the first hole and the second hole. From the comprehensive consideration of production safety, construction cost, installation efficiency, and pipe wear, the third option using the ramp 960 mL air shaft is the best option. This study can provide a good engineering reference for the optimization of deep pipeline network.