Mathematical description of the groundwater pumping process during the design of the automatic drainage system

Abstract

The main structure of any building is the foundation. It takes on itself and transfers all its load to the ground. When choosing the type of foundation, the decisive factor is considered to be the characteristics of the soil, the depth of freezing, as well as the level of groundwater, which gives the developer a lot of problems. The foundation under high groundwater level greatly affects the strength and load-bearing capacity of the building and requires a big investment. The groundwater level will be the fundamental criteriawhen calculating the cost of development, construction technology, durability of the structure and operating conditions of the building. The process of designing such systems is significantly complicated by multidimensionality, non-stationarity, as well as the non-linear nature of control objects. When developing an automatic drainage system, it is necessary to build a high-quality mathematical model of the pumping station. The article discusses the process of building an automatic system of groundwater regulation in a drainage tank based on a given control value and disturbing effect. The mathematical description is developed for the control circuit “water level - speed of the drainage pump” with the main disturbing effect - a change in the groundwater supply Mathematical model of the pumping station is implemented using a virtual simulation program - ViSSim.Based on the obtained model, an automatic drainage system can be developed to prevent flooding of the foundation with ground water during the construction of buildings and structures.