OTR-GEO - Model BRS -Multipoint Settlement System
Magnetic extensometer has been designed for measuring ground settlement during construction of railway, highway embakments.
In case of land subsidence caused by the construction of road and railway surveys; foundations, dams and tunnels; axial deformations of foundation piles and control of soils subjected to loads; OTR suggest the use of BRS settlement system.
The technology is made up by a double pipe telescopic column, installed inside the adequate drilling where are placed magnetic rings –for the holes or risings- at different quotes. Complete the system a settlement probe equiped with a magnetic detector of the rings and optical-acustical alert.
Rings anchor to the soil measured walls moves by the earth settlement.
When the probe feels the rings’ magnetic field it’s achive a relay that close the circuit of the probe and start the alert of the reel. Measuring datas allows the accurate reveeling of the relative settlement quote and of the absolute faillure.
How to instal?
Settlement sistem should be installed inside the hole of a drlling with a minimal diameter of 100mm.
The needed materials are: scotch tape, fathoming and hacksaw.
Before the installation, guide casing pieces will be cover with equaly lenght sheaths.
The first operation consist of assemble the first piece of guide tube inside of bottom terminal, which has installed plug to shut the terminal. Once screw the sheaths, seal with scotch tape the connection with the bottom terminal.