Reference products codes: S151 Sisgeo QJ inclinometer tube is an alternative to the traditional inclinometer casings, mainly designed for earth-fill dam and deep boreholes applications. QJ tube offers consistent joint and deeper tube grooves. O-rings prevent ingress of grout or water. The fitted-at-factory casings and the alignment keys assure a perfect grooves continuity. QJ fast installation reduce costs and limit drilling rig […]
This area, where the two DEX columns are installed, is an old waste rock dump site of an open pit coal mine. The depth of the waste is approximately 150 m and consists of alternating layers of silt, sand, gravels, limestone and lignite. Instruments installed:• Two QJ quick joint inclinometer columns, 150m length, with 11 […]
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 […]
Sisgeo worked on the hydroelectric project on Sogamoso river, through Monitoriza, a company of Sisgeo group. Sisgeo supplied and installed all the equipments necessary for this project, located in the north-western area of Colombia, at about 40 km from Bucaramanga. The project concerns the building of a dam 190mt high and 300mt long, of a […]
Impregilo is realising in Colombia the hydroelectric power plant of El Quimbo on Magdalena river (in Huila region), on behalf of EMGESA, that is the biggest electric company of the country. The agreement is worth about 250ml of euro. The power plant will have an installed capacity of 400MW. The project includes the building of […]
The Sakhalin II project is an oil and gas development project on Sakhalin Island and immediately offshore, in the Sea of Okhotsk, from two fields: Piltun-Astokhskoye and Lunskoye. Piltun-Astokhskoye is primarily an oil field, and Lunskoye is primarily a gas field. The project has been met with heavy criticism over the potential environmental impact, which […]
There is not an exact ratio for each kind of soil. It depends from many factors that could change for every geological and geotechnical situation. Anyway the grouting should be similar to the soil even if is not really possible to match both characteristics. Approximate Cement/Water/Bentonite mix ratio are: – for hard and medium soil: […]
If the water filled casing is lighter than grout backfill the uplift force of grout varies with the height of the grout column. If the column is short, the uplift force is low and the casing can be held in place by its own weight or with very little down-force applied from the top. When […]
FAQ#023 – For obtaining best results with inclinometer, must the borehole be very close to the vertical?
Borehole should be drilled as close to the vertical as possible, however 2/3 degrees from vertical are normally accepted in specifications.
In a northern Italian city named Brescia there is one of the most innovative and complex project of the country: a public railway line of about 14 Km longer, that pass through the historical centre of the city. The progress in opening of all the sites and building obtained nowadays show a general situation of […]
There is a big work in progress in Rome regarding the realization of a new part of the already existing railway B line named “B1 line”. This new branch deviate from Bologna Station towards Africano and Montesacro area, following the way of Viale XXI Aprile, Piazza Annibaliano, Viale Eritrea, Viale Libia, Via delle Valli reaching […]
The Mazar hydroelectric power plant site is located in the south-eastern part of Ecuador and consists of the 2nd phase of the exploitation of the potential energy of the middle course of the Río Paute. The Mazar hydroelectric power project will be constructed immediately upstream of the Amaluza reservoir and will have a capacity of […]