Construction — EMEA — Italy — Slope Stabilizations
Structural Repair of Strada Statale 34 : GEWI ® Plus Anchors stabilize a retaining wall at Lake Maggiore
The Strada Statale 34 del Lago Maggiore is a 39km long road in northwestern Italy that runs along the shore of Lake Maggiore near the Swiss border .
Photos reprinted courtesy of Impresa Luigi Notari S . P . A ., Italy
Within the scope of the structural repair and stabilization of SS 34 between kilometers 29 + 000 and 39 + 000 , in addition to several repair and strengthening measures , the road was leveled and the shoulder was stabilized .
This project also included the construction of a reinforced concrete retaining wall that was built in front of an old stone wall near the town of Cannobio . In this area , the road runs immediately adjacent to Lake Maggiore , and the stone wall drops down towards the lake nearly vertically .
The new retaining wall was planned with a variable overhang of up to 3.5m . Passive rock bolts were installed in up to 3 levels to tie back the wall . DYWIT supplied 3,700m of double corrosion protected , St 670 / 800 , 25 , 28 and 35mm Ø GEWI ® Plus Anchors for this purpose .
Once the tied-back anchor wall had been finished , a faux masonry facing consisting of prefabricated slabs was installed on the lake side . The rock bolts and prefabricated slabs were installed using cantilevered scaffolds .
In sections in which the road had to be widened towards the lake beyond the retaining wall , an additional reinforcement of the wall was required within the scope of construction work . In these areas , the new retaining wall also serves as an abutment for the roadway slab that cantilevers towards the lake .
Owner Anas S . P . A ., Italy General Contractor Impresa Luigi Notari S . P . A ., Italy Engineering Anastasi & Partners SA , Switzerland Consulting Impresa Luigi Notari S . P . A ., Italy
DSI Unit DYWIT S . P . A ., Italy DYWIT Scope Production , supply , technical support DYWIDAG Products 3,700m of double corrosion protected , 25 , 28 and 35mm Ø GEWI ® Plus Anchors
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