Inclinometry represents the most common method used to verify slope stability. Through this method, one may establish size, ratio, direction, depth and type of landslides. These data are vital to understand causes, development mechanism and selection of the optimal solution for addressing this issue, but also to verify the sustainable efficiency of such solution.
The method is based on measuring the deviation of boreholes from vertical by using an inclinometric probe, within certain intervals of fixed readings. The probe travels the length of the boreholes through special corrugated tubing. The inclinometer measures the deformations on perpendicular direction to the main axis of the tubing, i.e. the horizontal underground deformations, which will correspond to the land sliding plan.
The methodology includes installation of tubes and mounting them by using special cement, tailored to meet the onsite conditions or, as the case may be, with coarse backfilling material. The base of the tubing is placed in stable ground for at least 3m to 5m. This measure is taken to allow characterization of landslide at absolute values.
Geo Search uses a biaxial probe manufactured by Geokon, and RST equipped with MEMS sensors, at 0.025 mm/0.5 m resolution and a 3 mm/ 30 m total precision.