Until now, settlement pole monitoring has relied on manual measurements. To enable continuous monitoring, FinMeas has developed a satellite-based, automatic, battery-powered settlement monitoring system.
Pore pressure measurements are used in dam monitoring. Increased pore water pressure is a risk to dam stability.
Measuring device: pore pressure sensor
The typical measuring range of pore pressure sensors is 0-5 bars Several pore pressure heads can be connected to a measuring point at various levels. Pore pressure sensors, that is, piezometers, are inserted into the ground by using threaded steel tubes that are attached to the sensors. The central processing unit of this device transfers the measurement data automatically to FinMeas Online, that provides you with an easy access to up-to-date measurement data from any device.
Benefits
Measuring devices can be used for monitoring the water level of groundwater, water systems and reservoirs.
The typical measuring range of water pressure sensors is 0-5 bars. Several pressure sensors can be connected to a central processing unit. The central processing unit of this device transfers the measurement data automatically to FinMeas Online, that provides you with an easy access to up-to-date measurement data from any device.
Benefits
Displacement measurement is used to monitor the ground movements. Automatic displacement monitoring of dam structures keeps you up-to-date on possible changes that may expose stability risks.
Measuring device: Automatic inclinometer
The measuring device is an automatic inclinometer, that is, a flexible tube which includes biaxial inclination sensors. Typically, sensors are installed inside the tube at intervals of one metre. The measuring tube is placed vertically in the ground so that it moves and bends according to the movement of the soil layers. The displacement profile is calculated from the information provided by the sensors inside the tube. The central processing unit of this device transfers the measurement data automatically to FinMeas Online, that provides you with an easy access to up-to-date measurement data from any device.
Benefits
Dam safety can be promoted by monitoring settlements in order to stay up-to-date on possible changes that may weaken the safety of the structures.
Measuring device: GPS-based settlement monitoring
The focus of the GPS-based solution is tracking one single point. The accuracy that can be achieved with the solution is +-1cm. We also deliver the necessary base station.
Measuring device: Automatic settlement hose
For measuring settlements, FinMeas delivers measuring devices which contain precise pressure sensors connected to a long fluid hose. The fluid hose measuring device can be hundreds of metres long, and the interval between sensors can be dozens of metres. The sensors detect even settlements of 5 mm. The measuring device can be installed under ground or directly to the structure. The central processing unit of this device transfers the measurement data automatically to FinMeas Online, that provides you with an easy access to up-to-date measurement data from any device.
Benefits
With the help of temperature profile monitoring, in addition to frost information, you can get information about the water moving in the dam. If there is moving seepage water in the dam, there will be noticeable changes in the temperature profile. This helps detect potential leaks that are not visible on the surface.
Measuring device: temperature profile
A measuring device is either a tube or a cable which is customised according to a customer’s requirements and which contains precise digital temperature sensors. The length of a measuring tube can vary from a couple of dozen centimetres to several metres. Typically, sensors are set inside the tube at intervals of five centimetres. The length of a measuring cable can be hundreds of metres. The central processing unit of this device transfers the measurement data automatically to FinMeas Online, that provides you with an easy access to up-to-date measurement data from any device.
Benefits
With the camera, it is possible to monitor a real-time situation on the location. This can become important when combined with different measurements of the river beds, so you can easily see if the river bed is frozen or, for example, flooded. The camera image is displayed with other measurement data in the FinMeas Online service.
Until now, settlement pole monitoring has relied on manual measurements. To enable continuous monitoring, FinMeas has developed a satellite-based, automatic, battery-powered settlement monitoring system.
FinMeas' dam and environmental monitoring system for the mining sector aids in the automated safety monitoring of dams and the environment.