- Client: Canton of Valais
- Site management / reference person: OBL - Canton of Valais - Martin Sarbach / öBL - Ingenieurbüro Zumofen & Glenz AG - Heinz Noti
- Foreman: Jasin Ajeti
- Foreman: Alain Ritz
- Construction period: August - November 2024
- Construction costs: 1.05 million
Technical data:
- 260 m³ excavation/removal
- 380 m² nail wall / shotcrete
- 465 m' Swiss Gewi & SpannTop anchors
- 200 m³ in-situ concrete
- 73 m² formwork for concrete beam
- 250 m² formwork for bridge slab / backrest soffit
- 235 m² formwork for parapet / console head
- 37,000 kg reinforcement
- 140 m³ foundation layers RC gravel mix B 0/45
- 24 m' pipelines
- 3 inlet and inspection shafts
- 320 m² waterproofing / bund seal
- 600 m² teaching, protection and working scaffolding
- 220 t pavement
Description of the project:
The road section in question is located in the municipality of Törbel along the road from Stalden to Törbel in the Flie area. The alignment in this section is being optimized and the road widened. A leaning structure is required on the valley side to secure the road.
The construction comprises a bridge slab with a thickness of 40 cm, which is supported on concrete ribs or directly on rock. The concrete ribs are arranged at intervals of 8.00 m, have a width of 80 cm and are founded on the rock. They are additionally anchored back with anchors (SpannTop ? 28 mm).
- Between points QP 111 and QP 114 there is a leaning construction with two concrete ribs over a length of 24.00 m.
- Between points QP 114 and QP 115 (25.165 m long), the concrete slab rests directly on the rock.
- From QP 115 to the end of the project at QP 123 (66 m long), the concrete slab again rests on concrete ribs, partly also on rock.
The bracket head is hydrophobized to protect the structure. An OS 7 collar seal is applied to the concrete slab, followed by EP5 waterproofing, which is covered with protective concrete.
Requirements
- Material management & logistics
- Tight space conditions
- Mountain construction site / working on steep terrain
- Working with PSAgA
- Short construction time
Special features:
- In-situ concrete with 2% black pigmentation
