SUMMARY
The object of research is the process of flooding the roadway in the zone of influence of irrigation fields. One of the most problematic places is the influence of such technogenic factors on the groundwater level as irrigation fields and roads, the prevailing natural factors. Excess moisture content reduces the carrying capacity of the soil, which leads to accelerated destruction and shortening of the road life. In such cases, a road with drainage problems requires more frequent repair and rehabilitation than the one on which the drainage system is functioning normally. Therefore, the cost of the device coverage should be compared with the cost of supporting wastewater. To maintain the roads and prevent their flooding, constant monitoring of the state of the groundwater level (GWL) and a forecast of its changes are necessary.In the course of research, mathematical methods are used (analytical solution of differential filtration equations involving the Maple computer program) for mathematical modeling of the curtain grouting parameters. As well as methods of environmental and economic assessment and comparative analysis to determine significant factors influencing the GWL and the impact of GWL on the environment.An engineering measure is proposed to protect the roadway from the harmful effects of groundwater, providing for the establishment of curtain grouting along the road. The mathematical modeling of the parameters of the curtain grouting, which will make it possible to effectively use the curtain grouting in the fight against flooding.From the Polubarinova-Kochina equation of the liquid medium motion, the Dupuit equation is obtained, which was used to solve the stationary problem of determining the flow rate of water through the curtain grouting. Then it is solved the stationary problem of determining the flow rate of water through the curtain grouting. It is established that the use of curtain grouting is effective even at such parameters: ?f = 0.7 m/day, with a greater length and a smaller deepening of the curtain itself. The obtained calculations of the parameters will allow the use of curtain grouting in various industries to protect against flooding of various objects.