| Abstrakt: |
The existence of a modern metropolis is impossible without a developed underground transport system, therefore one of the most demanded direction of construction activity is the construction of subways. The construction of metro stations and the laying of underground tunnels in dense urban areas are complex and time-consuming processes. In difficult hydrogeological conditions, various methods of soil consolidation are used: selicatization, freezing, "wall in the ground", dewatering and injection of cement mortar into the soil. The filtration of the suspension, which passes through the porous medium, forms a deposit, and thereby changes its properties are central in the efficiency of all these processes. The paper considers the process of two-particle suspension filtration, which is determined by a system of partial differential equations containing linear accessibility function and flux reduction function. The total and partial retention profiles - the concentrations of retained particles of various sizes and total deposit depending on the coordinate at a fixed time at various values of the parameter of the accessibility function and the flux reduction function - have been investigated, their graphs have been plotted. [ABSTRACT FROM AUTHOR] |
