Konsko Dam

The dam is located close to the border between North Macedonia and Greece. It’s an embankment rock-fill dam with a central asphalt-concrete core as watertight element. The dam will be 80 m height, the cross section on top will be 340 m long, with a total embankment volume is approx. 1.4 m3 The main purpose […]

Grand Paris Express

Le Grand Paris Express est le plus grand projet urbain en Europe avec la construction de 200 km de lignes automatiques, soit autant que le métro actuel, et 68 gares. Les quatre nouvelles lignes du Grand Paris Express (15, 16, 17 et 18), ainsi que la ligne 14 prolongée au nord et au sud, seront […]

Tunnel en contexte urbain: Station Hakata du métro de Fukuoka – Japon

Le creusement du tunnel de la station Hakata pour le métro de la ville de Fukuoka au Japon a été effectué en creusement partiel. Au-dessus du tunnel se trouvent une route à trafic dense et différentes structures comme un parking souterrain, des conduites de gaz et des pompes de relevage. Les contraintes de faible recouvrement […]

Inclinomètres fixes BH-profile

Codes de référence: S431HD, S432HD, S431HA, S432HA Borehole profile in-place inclinometers offer continuous remote monitoring of casings deformed by active soil movements. BH-Profile chain consists of a number of MEMS IPI probes with carbon fiber extension rods and a terminal wheel assembly to close the chain. Thanks to the digital RS-485 signal output, they can […]

Rome Underground – Line C – Italy

Rome metro Line C runs through the city from North-West (Della Vittoria district) to the eastern suburb and is extending beyond the Grande Raccordo Anulare.Line C has a full-run of 25,6 km and 30 stations, passing through the old town centre.The Route will be characterised by the green colour. The interchanges with the other metro […]

Arosa Schafisgade project – new touristic resort – Switzerland

The Arosa Schafisgade project includes construction of three houses with each six luxury apartments. The houses are located in a potential unstable slope. During excavation work adjacent houses above the new built ones had to be monitored geodetically. Between the new excavation and the existing houses borehole inclinometers had been drilled and monitored to detect […]

FAQ#116 – How do I configure a WR-Log digital node to read RS485 Sisgeo TIMED sensors?

Sisgeo digital instruments can operate in two powering modes: TIMED or ALWAYS-ON (for more information see F.A.Q.#094.A string of mixed instruments consisting of TIMED gauges and ALWAYS-ON gauges cannot work.The first thing to do is therefore to check that ALL connected instruments in your array are set to TIMED mode.You can check the powering mode […]

FAQ#095 – How long does a chain of digital sensors take to be read?

It mainly depends from the powering mode of the gauges (refer to FAQ#094 for the description of the powering modes). AN EXAMPLE WILL BETTER CLARIFY THE ANSWER. In a batch of 240 gauges, unless otherwise requested by the Customer, the addresses are settled from #001 up to #240. In a borehole is installed a chain of 30 […]

FAQ#087 – Could the IPI, BH Profile and DEX probes have problems in frozen water?

Sisgeo suggest that frozen water within the inclinometer casings is to be avoided due to following reasons: – Ice within the casing will affect functionality of the systems by blocking the individual probes;– Mechanical damages can occur to the probes, but also to the inclinometer casing due to the expansion of frozen water In any […]

FAQ#076 – Pourquoi est-il nécessaire d’ajouter une résistance de terminaison au dernier capteur numérique de chaque chaîne RS-485?

Tous les instruments numériques SISGEO (IPI, clinomètres, H-Level…) utilisent le protocole de communication série RS-485. Le protocole RS485 requiert l’ajout d’une résistance de terminaison. La connexion recommandée pour une chaîne utilise des nœuds « point à point » (multidropped) en mode bus (line). Les connexions réseau en étoile, circulaires ou ramifiées ne sont pas recommandées. […]