Overview
A civil mining company’s property experienced significant flooding during heavy rainfalls, which was impacting nearby buildings and making the ground challenging to navigate.
This problem is exacerbated by the shallow water table in various portions of the property, necessitating a well-planned approach to manage and mitigate the flooding.
Tsurumi's Approach
To effectively manage and address the flooding issues on the property, a strategic system of sump pits and pumps was established and implemented to efficiently manage stormwater runoff and protect nearby buildings from future flood damage.
The first component of this system is a 1500 x 1500 x 1800 mm high sump pit (Pit 1) located at a low point on the property where water tends to collect most during heavy rainfall. This pit is crucial for capturing stormwater runoff, which is then pumped into two nearby rainwater tanks. To further manage excess water, two dewatering submersible pumps are used to redirect any overflow to a nearby paddock.
In addition to Pit 1, two more sump pits (Pit 2 and Pit 3) of the same dimensions were installed to address further stormwater management needs. These pits accommodate pumps that transfer water into a larger rainwater tank located over 20 meters away on the opposite side of the property.
This strategic placement allows for efficient water distribution across the site. The setup includes four dewatering submersible pumps, with two pumps allocated to each pit. The rapid removal of stormwater facilitated by these pumps is essential for minimizing flooding and preventing potential damage to nearby buildings.
The selection of appropriate submersible pumps was a collaborative effort involving the reseller, Tsurumi Pump, and the end user. The team focused on identifying a submersible pump brand and model that would meet the specific application duty and operate efficiently at the Best Efficiency Point (BEP). After evaluating factors such as capacity, total head, pumping distance, and other critical duty requirements, the Tsurumi 80UZ41.5 submersible pumps were chosen. These pumps are capable of handling the necessary load, with a pumping capacity of 10 litres per second, ensuring the system operates effectively under demanding conditions.
Results & Benefits
This solution provides a robust system for managing stormwater on the property, effectively reducing flooding risks and protecting nearby buildings from potential damage. Regular maintenance and monitoring of the system will ensure its continued effectiveness in managing heavy rainfall events.
Conclusion
The pumps have been in operation over 6 months and the end user is very satisfied with the setup and how effective and efficient the Tsurumi UZ submersible pumps are operating.
