Soldier pile shoring I Benefits & execution

Bracing wall for dry excavation pits

Soldier pile shoring
Shoring system for construction pits above the water table

The soldier pile shoring is a shoring system for vertical construction pits above the water table. It is manufactured in various designs and is used in particular where deformation requirements are low.

Areas of application include:

Construction pits above the water table
Interlocking beam shoring above bored piles or diaphragm walls
Stabilisation of changes in ground level
Construction pits with groundwater lowering

Auf dem Bild sieht man rechts eine Trägerbohlwand; diese sichert den Straßendamm am Südschnellweg in hannover

Technical brochure
Construction pits

Construction pit walls (only available in German)

PDF

Benefits / Features
soldier pile shoring

Adaptability: Adaptation to different local conditions; recesses for cables can be incorporated depending on the project.
Construction: Low-noise construction with minimal vibrations is possible.
Existing buildings: Construction is also possible in the immediate vicinity of existing buildings.
Construction process: Depending on the project, new buildings can be constructed directly adjacent to the shoring.
Reusability: Depending on the project, the shoring beams and parts of the infill can be dismantled, reconditioned and reused.

Basic facts

Standards and regulations

Soldier pile walls are designed and manufactured in accordance with DIN EN 1997-1, DIN 1054, and the recommendations of the “Construction Pits” Working Group (Empfehlungen des Arbeitskreises ”Baugrube, EAB).

Production

The first step involves vibro-compacting the steel soldiers into the ground or inserting them into pre-drilled holes and concreting them in at the base. The soldiers are vertical steel girders (e.g. HEB girders, IPB girders or double U-profiles) placed at intervals of around 1m to 3m. The concrete grouting at the base increases the rigidity of the shoring and thus reduces deformations.

The second step is to excavate the soil step by step and to infill the exposed adjacent soil between the steel profile girders with timber (planks or squared timbers). The soil can also be infilled with jetcrete.

Anchored soldier pile walls

Berlin shoring systems at greater excavation depths must be anchored. The anchors for the anchored soldier pile wall can be manufactured to remain permanently in the ground or to be removed, either partially or completely. As a leading supplier of pressure-grouted anchoring, our company offers different anchor systems from a single source and can thus always provide the technically and economically optimal solution for the client’s construction project. Soldier pile walls at great depths are economically dimensioned by using anchors, chording or bracing. If the construction pit is especially deep, the soldier pile walls are secured with several layers of anchoring.

Where there are high live loads, some sections are designed as bored pile walls. The bored pile wall can also be anchored.

Design variants
of soldier pile shoring

Berlin shoring

Berlin shoring is the most common type. After the excavation has been completed, the wooden planks are placed between the IPB beams and held in place with wooden wedges. At greater excavation depths, a horizontal chording of U-profiles is placed in front of the shoring soldiers for support and secured with grouted anchors.

Hamburg shoring

Hamburg shoring involves lining up wooden planks in front of the shoring soldiers and attaching them to the soldiers with hook plates. This variant is rarely used anymore.

Essen shoring

Essen shoring uses two parallel U-profiles connected with lugs as shoring supports. The surrounding soil is infilled in the same way as with Berlin shoring. If the shoring is anchored, the pressure-grout anchors are drilled between the U-profiles, thus eliminating the need for chording. This saves space in the construction pit, which is then available for building construction.

Quality assurance

We ensure high execution quality with:

Individually coordinated instructions
Compliance with the requirements of DIN EN 1997-1
Inclinometer measurements to check for deformation
Clear processes via our quality management system in accordance with DIN EN 9001:2015