Berlin wall, Vezia, TI

PURPOSES

The project involved the construction of a Berlin wall system to support an excavation measuring 17 meters in length, 17 meters in width, and 9 meters in depth. The purpose of the wall was to ensure stability during excavation and to manage geotechnical and hydrogeological challenges encountered on-site.

The retaining structure is designed to:

• Safely support the vertical excavation walls to enable construction activities below ground level.
• Prevent ground collapse or material displacement in highly variable soil conditions, including silt and fractured rock.
• Manage and mitigate groundwater inflows encountered during excavation to maintain dry working conditions.

CLIENT

La Perla Facility Management Sagl, 2023-2024.

WHAT WE DID

Technical Solution:

1. Retaining Structure Design:

   • A Berlin wall system was implemented using 193 mm Rohr piles spaced at approximately 1-meter intervals.
   • Horizontal stabilization was achieved using 600 mm transverse struts and HEB steel bars for reinforcement at the corners, ensuring the structural integrity of the wall.

2. Ground and Water Management:

   • Extensive measures were taken to address variability in subsurface conditions, including transitioning from fine-grained soils to fractured rock.
   • Groundwater inflows were managed throughout the excavation, ensuring that the site remained safe and operational.

This project highlights the application of advanced geotechnical engineering techniques to address complex site conditions, ensuring the success of deep excavations in challenging environments.

Anchored Berlin wall, Viganello, TI

PURPOSES

To support the excavation and construction works, an anchored Berlin wall has been designed. Basically, the design involves constructing a diaphragm wall, 15 meters deep, anchored by 9 nails of 12 meters long.

CLIENT

NEMAIN, 2024.

WHAT WE DID

Excavation works can be complex and challenging, and ensuring safety is always a top priority. The design of a Berlin tie-back wall is an effective solution to provide stability, space around the building site and prevent collapse in the excavation sites.
The ability to complete excavation works efficiently can be critical for projects where excavation is a significant part of the construction process.
Furthermore, increasing excavation security with the design of a tie-back wall was an excellent example of prioritizing safety and space. It showed a commitment to efficiency, safety, and excellence in construction practices.

Anchored retaining wall pit, depth 20 m, Le Châble, VS, CH TI

PURPOSES

To support the excavation and construction works, an anchored retaining wall pit, depth 20 m, has been designed.

CLIENT

AZ Construction, 2022-2023.

WHAT WE DID

Excavation works can be complex and challenging, and ensuring safety is always a top priority. The design of an anchored wall is an effective solution to provide stability, space around the building site and prevent collapse in the excavation sites.
The ability to complete excavation works efficiently can be critical for projects where excavation is a significant part of the construction process.

Self-supporting Berlin wall, Cadenazzo, TI

PURPOSES

To support the excavation and construction works, a self-supporting Berlin wall has been designed. Basically, the design involves constructing a diaphragm wall, 10 meters deep, and then in one shot excavating down 3 m.

CLIENT

DONINELLI ARCHITETTI, 2022-2023.

WHAT WE DID

Excavation works can be complex and challenging, and ensuring safety is always a top priority. The design of a Berlin tie-back wall is an effective solution to provide stability, space around the building site and prevent collapse in the excavation sites.
The ability to complete excavation works efficiently can be critical for projects where excavation is a significant part of the construction process.
Furthermore, increasing excavation security with the design of a tie-back wall was an excellent example of prioritizing safety and space. It showed a commitment to efficiency, safety, and excellence in construction practices.

Berlin tie-back wall, Vira, TI

PURPOSES

To support the excavation and construction works, a Berlin tie-back wall has been designed. Basically, the design involves constructing a diaphragm wall, excavating down 8 m in two stages and tying the wall back with two rows of pre-stressed anchors.

CLIENT

Voigt&Partner, 2021-2022.

WHAT WE DID

Excavation works can be complex and challenging, and ensuring safety is always a top priority. The design of a Berlin tie-back wall is an effective solution to provide stability, space around the building site and prevent collapse in the excavation sites.
The ability to complete excavation works efficiently can be critical for projects where excavation is a significant part of the construction process.
Furthermore, increasing excavation security with the design of a tie-back wall was an excellent example of prioritizing safety and space. It showed a commitment to efficiency, safety, and excellence in construction practices.