Water Services and Technologies was invited to participate in the First Digital Seminar on Hydroinformatics, whose main theme is “Innovative Solutions for Modeling Aquatic Environments”, from November 9th to 13th. The event will take place in online format and is organized by Hydroinfo and supported by DHI.
DHI is the developer of a series of software solutions for all types of aquatic environments: coastal, surface and underground marine, for applications in both natural and urban environments and in enterprises such as mining, industries, etc. Among the solutions developed by DHI is FEFLOW, one of the most powerful groundwater modeling software today and in which Water Services and Technologies is a reference in Brazil and worldwide for teaching and applications.
The event is organized into five categories:
- Coasts and Seas
- Urban Waters
- Hydrogeology and Mining
- Inland Waters and Water Resources
- General and News
In the “Hydrogeology and Mining” category, WST will present two lectures on November 12th. The first will be given by the president of Water Services and Technologies, Nilson Guiguer, Ph.D, on “Simulation of Underground Mine Drainage in Karst Environments”, and at 2 pm, on the same day, Danilo Almeida, M.Sc., director of projects, he will give the lecture “Mine closure with pit filling with tailings: integrated hydrogeological and geotechnical modeling”.
Check out more information about the lectures given by professionals from Water Services and Technologies:
In this lecture, it will be presented how FEFLOW has been used successfully in the last 13 years to predict the expected flows and drawdowns for the drainage of the Vazante mine. This mine has a pumping capacity of about 14 m3 / s and its challenges are to be located in a karst environment, to cross several geological structures and faults and to be flanked by a river that provides a large part of the flow entering the mine, even drying up in some periods of the year. It will also be demonstrated how the MIKE River flow model can be coupled with FEFLOW to make an integrated modeling of surface and groundwater.
After the closure of mines with open pit pits, typically the pumping used to lower the water table ceases and there is a recovery of the water level forming a lake. There is a need to predict the recovery of the level over time due to three factors: the recovery of pore pressures on the slope should not be so fast as to compromise its stability; understand how the recovery of the level affects the base flow of rivers and springs in the surroundings and know the maximum level of the lake and overflow points. More recently, inactive pits have been used to dispose of tailings, thus minimizing the need for tailings dams. With the compaction of this tailings as the height of the deposit grows, there is an expulsion of water from the compacted pores and with that it is necessary to use models that allow representing this compaction to correctly predict the recovery of the water level. In this presentation, a solution will be presented using FEFLOW together with a plug-in to represent this phenomenon. A comparison will be made considering whether or not the compaction is in the final result.
For more information about the First Digital Hydroinformatics Seminar, click on the button below and access the event’s website directly.