Primary school, Torricella

An architectural detail that alludes to the battlements of the ancient city walls and breaks up the composed monumentality of the building.

The construction of the Torricella-Taverne nursery school is part of the overall reorganization of an area in which the construction of various public, scholastic and sporting works is planned.

The Celoria Architects studio has translated the constraint represented by an existing wall into a resource, which, by touching the individual elements present in the area, defines their mutual relationships.

The wall has in fact become the main subject of the intervention, constituting the base of the building and the site of the pedestrian walkway that leads to the school and connects to the sports fields via a ramp.

The three remaining sides of the podium are underground and house the technical and service rooms in a waterproof Drytech Tank structure.

The planimetric organization of the building interprets the functional indications relating to school buildings, with the aim of optimizing circulation spaces, reducing distribution to a minimum and eliminating corridors.

The abstract composition of the volume is however softened by the introduction of some elements somehow extraneous to this composed monumentality, which allude to ancient bastions characterizing their formal expression. 

Even if the final touch of tenderness to the Torricella-Taverne nursery school is given by the row of small colored scooters parked under the loggia.

Project: Celoria Architects, Balerna

Structure: Brenni engineering SA, Mendrisio

Construction: CSC SA, Lugano

AIL tunnel, Agno

Cunicolo AIL Agno-Bioggio

The AIL Agno-Bioggio tunnel for high voltage systems runs alongside the Vedeggio river for 4 km and, in a central stretch, is also bordered by the Prati Maggiori canal. Precisely at this point the route of the structure crosses the Riale Roncaccio drainage canal.

To overcome it, the tunnel dives further below the riverbed up to -5 meters from the ground level. Due to the particularly delicate position exposed to multiple water pressures, this section of the tunnel was created with a total Drytech Tank: foundation, walls and slab.

The Drytech Tank structure of the AIL Agno-Bioggio tunnel has a thickness between 30 and 40 cm and the joints have been waterproofed with injections of DRYflex expanding resin.

By sealing the entire thickness of the joint, the resin also protects the reinforcing bars, because it keeps water completely outside the concrete. In the event of any infiltrations, the system provides practical and easily manageable maintenance from inside the structure, without interruptions to the service.

The real possibility of carrying out maintenance contributes to the main quality of waterproofing: which is to prevent water from entering for the entire life of the work, i.e. for 50 – 100 years in the case of civil engineering structures, as prescribed by SIA 272.

Structure: Comal Engineering, Lugano

Construction: Implenia, Bioggio oh the 

Hydroelectric power plant, Casale Monferrato

The new hydroelectric plant of Casale Monferrato

Building for water can sometimes mean having to build underwater too. The new Casale Monferrato hydroelectric power plant was built below the left bank of the Po, and the river also completely flooded the construction site during the 18 months in which the work was carried out.

The natural flooding in the floodplain area where the construction site was opened did not represent a problem for the Drytech Tank, because the construction characteristics and materials of the system cannot be altered by the presence of water, not even during construction.

The same DRYflex resin, which is injected into the construction details to seal them, is effective in the presence of water, even under pressure.

Built by Allara SpA of Casale Monferrato, the system consists of a mobile weir in the riverbed, an intake structure upstream of the weir from which the diversion canal begins which conveys the water to the central building which houses the groups of energy production and, downstream of this, the return channel into the riverbed.
The work is completed by two access ladders – one on each bank – for the ichthyofauna and the ramp for the passage of canoes.

The mobile barrier crosspiece, made up of a tubular structure in water-inflatable rubberized fabric, guarantees the diversion of the water flow to the lateral intake work of the left bank.

When the water level upstream reaches the maximum authorized level, the crossbar is depressed under the pressure of the water that overcomes it, avoiding flooding.

With its 200 meters of longitudinal development, it is the largest flexible dam in the world built with this technology.

The production plant hosts four turbines that generate an average power of approximately 3000 kW, for an annual production of 21 GWh.

Access to the turbine room is guaranteed by an underground tunnel connected to an entrance hatch. The tunnel is also a full Drytech Tank (waterproof floor, walls and slab), connected to the main body by a movement joint which has been waterproofed with DRYset injectable Waterstop Tape.

Owner: Idropana, Turin

Technical direction: STA Engineering, Pinerolo

Structure:
Eng. Gianluca Odetto – SERTECH, Loranzè

Construction:
Allara SpA, Casale Monferrato

Drytech Tank: 1,200 m2

The snow factory, Carosello of Livigno

Drytech has built the new 5,600 m³ water tank, which will feed the cannons for artificial snow Close to the Carosello 3000 station in Livigno.

Close to the Carosello 3000 station in Livigno, Drytech has built the new 5,600 m³ water tank, which will feed the cannons for artificial snow.

The work, built in 5 months with a 2’175 m² Drytech Tank, is completely underground to have no impact on the Alpine panorama.

The practicality of the construction of the Drytech Tank makes the construction of these structures faster.

Time is a decisive factor in any construction site, but it becomes even more important for applications conditioned by seasonality (the structure had to be ready in time for the opening of the ski season) and with a climate that reduces the useful building time to a few months.

Drytech Engineering has formulated a waterproof concrete suitable for environmental conditions, based on the characteristics of the aggregates present in the plant chosen by the Edil Dona company in Valdisotto, Sondrio.

The acrylic resin DRYflex, which waterproofs the details by pressure, is certified for use in structures in contact with drinking water, so it is safe for the environment and therefore perfectly suitable for use in a tank that feeds the guns of snow.

One of the main acceleration factors on the construction site is the control of shrinkage cracking.
In fact, the Drytech tank allows you to make continuous castings (the bed was cast in a single solution) because the cracks are induced by the Cracking Elements, which can also act as disposable formwork.

Client: Carosello 3000, Livigno

Project: Studio Associato DMP, Livigno

Structure: Ing. Piergiacomo Giuppani, Sondrio

Construction: EDIL DONA, Valdisotto

Drytech Tank: 2,175 m²

Olympic swimming pool, Livigno

The logo of the Livigno Olympic Federal Centre

One thousand eight hundred and sixteen and 50 meters. Added to the hyper-training altitude of Livigno are the 50 precious meters of the “Federica Pellegrini Swimming Area”: the new Olympic swimming pool, built by TMG of Berbenno di Valtellina.

The new swimming pool has 12 competition model starting blocks (6 on each side), with 5-position track start platforms. With particular attention to the swimmer’s well-being and the environmental impact, the water is disinfected with a hypochlorite (with low chlorate content), produced on site with electrolytic salt transformation technology, which among other things allows the reduction of chlorination waste products.

The safety of the structure is also at levels of absolute excellence. The pool is in fact equipped with the Angel Eye system: 20 underwater cameras that record images of the swimmers in real time. The system is able to identify dangerous situations and, in the event of an alarm, sends a signal directly to the lifeguards’ smartwatch.

Drytech carried out the waterproofing of all the foundations of the building, all the perimeter walls and the recovery tanks, collaborating with the structural engineers right from the design phase. All these structures are in contact with the waters of the Federia stream, a tributary of Lake Gallo, whose flow varies depending on rainfall regimes and, above all, seasonal thawing phases.

Naturally the new Olympic pool of the Federica Pellegrini Swimming Area is open to the public. Inside the Aquagranda center you can also snorkel while admiring the fish on the seabed or travel to the interstellar stations of Mars, Moon and Venus. All this thanks to Divr: a new form of virtual reality that uses multisensory technology, amplified by immersion in water.

Ownership: Aquagranda, Livigno

Project:
Architect Giovanni Colturi

Project collaborator: Geom. Demis Spiller

Structure: Eng. Fabio Fabiano, Varese / Engineer Marco Finazzi, Palazzolo Sull’Oglio / Eng. Fabio Sibaud, Como

Construction: TMG, Berbenno di Valtellina

Drytech Tank: 2,300 m2

Prefabricated underpass, Crema

The railway underpass of Indipendenza street in Crema allows the passage of a road and a cycle path under the railway path.

The railway underpass of Indipendenza street in Crema allows the passage of a road and a cycle path under the railway path. The work was carried out without interrupting the overlying passage of the trains.

The Drytech Tank made it possible to prefabricate the monolith near the tracks and push it to its final location with an excavation that gradually replaced it for the ground supporting the railway line.

Once positioned in place, the monolith was waterproofed in its critical points (cracks and joints) with DRYflex expanding resin injections.

Made ex-post, the waterproofing did not risk being damaged during the launching operations.

The expansion joints f the railway underpass of Indipendenza street in Crema were prepared with DRYset injectable waterstop tapes.

Structure: Ing. Terzini, Crema

Construction: De Fabiani Spa, Cavenago d’Adda

Drytech Tank: 3’600 m²

Renovation with Ex-Post Drytech Tank, Italy

Due to a faulty geological survey, no provision was made for waterproofing the basement of this prestigious residential complex, which was rehabilitated by constructing a Ex-post Drytech Tank.

Due to a faulty geological survey, no provision was made for waterproofing the basement of this prestigious residential complex, which was rehabilitated by constructing a Ex-post Drytech Tank.

Unfortunately, after the construction was completed, a peak of the seasonal water table flooded the -2 level, making the garages unusable.

At this point Drytech was involved to restore the underground.

The analysis of the structural and environmental situation by the Engineering has identified the best solution in the construction of a Ex-post Drytech Tank.

The industrial floor built above the gravel filling was therefore demolished. The water table was brought under control with a well-point system.

We then proceeded to lay the cracking elements in the stalls and prepare the stalls / walls and stalls / columns joints with the DRYset Channel.

The numerous crossings produced by the well-points have also been suitably prepared for the waterproofing injection, once the concrete has matured.

The new waterproof concrete slab based on the Drytech recipe was then cast.

To ensure the height of the extrados, it was necessary to create the sealed platform and the industrial floor in a single fresh-on-fresh helicopter jet.

When the concrete has matured, Drytech has perfected the injection of programmed cracks, joints and crossings with DRYflex expansive resin.

Due to its elastic quality, the resin is re-injectable, so it guarantees the possibility of maintaining the system over the years.

The construction of the ex-post Drytech platform made it possible to waterproof the basements and to deliver the properties with the usable garages.

Restoration Project: Drytech Engineering

Waterproofing: Drytech Italy

Double waterproof pump wells, Copenhagen

Drytech has designed a special waterproof pump shaft that allows companies to create pumping points inside the bed.

Drytech has designed a special waterproof pump shaft that allows companies to create pumping points inside the bed.

The wells are made in the Bedano workshop, in Switzerland, and shipped to the construction site, wherever it is in the world, where they are prepared by the Drytech technician.

This is the case of the construction site opened directly in the North Sea, where 36 pump wells were installed, subsequently sealed and incorporated into the bed.

Once its function is exhausted, the Drytech pump well is waterproofed both externally and internally.

Once the casting is complete, the joint between the well and the bed is injected with DRYflex expansive resin, which seals the element by pressure, wrapping around the entire thickness of the bed.

Any water flows inside the well are instead rendered harmless by the lid sealed with gaskets both on the circumference of the well and on each of the sealing bolts.

The use of the Drytech System resulted in a saving of several weeks on the time required for the construction of the waterproof basement.

Waterproofing: Drytech Italy

Lee Tunnel, London

The Lee Tunnel is one of the two pipelines that convey an average of 39 million tons per year of wastewater, coming from 35 sewer pipes, built in the Victorian era as part of the network that still serves London, after 150 years.

The Lee Tunnel is one of the two pipelines that convey an average of 39 million tons per year of wastewater, coming from 35 sewer pipes, built in the Victorian era as part of the network that still serves London, after 150 years.

The works began in September 2010 at the Beckton treatment plant, with the construction of the first of the four 80-meter wells, waterproofed by laying DRYset channels in the joints, then sealed with DRYflex resin injections.

The sections of the 120-meter-long milling machine were then lowered through the shaft, which in 2012 began excavating the connection tunnels, with a diameter of 7 meters.

The infrastructure is part of the strategic plan to improve and ensure the health of the Thames waters. The system routes discharges from London’s largest surplus sewer to Mills Abbey Pumping Station in Stratford, which handles 40 per cent of the total waste.

The four miles of tunnel were built beneath the Borough of Newham, from Abbey Mills to Beckton. The new tunnel helps prevent more than 16 million tonnes of sewage mixed with rainwater from overflowing into the River Lee each year, capturing and transferring it to Beckton’s sewage treatment facilities, which are in turn being expanded by 60 per year. one hundred to cope with the increase in volumes handled.

This is the deepest tunnel ever built in London. This involved excavating in conditions of high groundwater pressures, along four miles of extraordinarily abrasive soil and without lateral vent pipes.

Owner: Thames Water Utilities, London

Structure: Engineer Emmanuel Costes, London 

Construction: Morgan Vinci Bachy JV, London

Waterproofing: Drytech UK, London

Branca Crescent, Melide

There are only two ways to build a waterproof structure directly in water: either the classic double tank, or the single tank of the Drytech Tank technology.

There are only two ways to build a waterproof structure directly in water: either the classic double tank, or the single tank of the Drytech Tank technology.

The undergrounds of the Villa Branca Residence in Melide, on the banks of the Ceresio, were built with this system.

A luxurious crescent consisting of 16 apartments and 5 penthouses, with terraces, roof gardens, whirlpools and parking below the lake level.

In addition to allowing underwater installation, the Drytech tank ensured compliance with the internal volumes envisaged in the project, being a single waterproof concrete structure.

Drytech Engineering has defined the recipe for waterproof underwater concrete. As the casting matured, the construction details were waterproofed with the injection of DRYflex resin, effective despite the presence of water outside the new tanks.

Client: Chiancianesi & Longoni, Pregassona

Project: Archiconsult SA, Lugano on behalf of Marco Chiancianesi and Daniele Longoni with the architectural supervision of Source Project Manager SA

Structure: Ing. Alessio Casanova, Pazzallo

Company: PromEng SA, Lugano Besso

Drytech Tank: 2,900 m²