TRIVEC and Sliding Micrometer: Fully Digital Instruments for Geotechnical Displacement and Deformation Measurement

Since more then 25 years the Sliding Micrometer and the TRIVEC borehole instruments have been very successfully used for different applications in geotechnical engineering projects to measure profiles of deformation and displacement in soil, rock and in concrete structural elements. The wide range of applications covers landslide projects, foundation engineering, projects with retaining walls, deep excavations, soil consolidation, dam and dam foundation and also tunneling and caverns engineering. One application is the monitoring of the behavior of the Emosson double arch dam foundation since more then 20 years by TRIVEC. Another example are large scale static pile load tests for a new football stadium in Zürich including deformation measurement along the pile but also in the soil under and next to the piles. Recently, the Sliding Micrometer and the TRIVEC were redeveloped with new characteristics including digital sensors, new data acquisition system and new hardware.