Impulse-Compaction
Industrial Buildings
Gravel Columns “TERRA-MIX”TM System
Project Period: June 2017 through September 2017
Construction Project: New construction of a logistics center
General Contractor: Ten Brinke Industrie- und Gewerbebau GmbH & Co. KG
Area of Dynamic Compaction: approx. 2,400 m2 and 340 individual foundations
Project Description
Soil improvement was required for the construction of a new warehouse. The soil consisted of artificial fill, a non-load-bearing layer of loess loam, and, beneath that, a load-bearing weathered layer. A maximum permissible angular distortion of 1:2000 had to be ensured for the foundation slab of the high-rack warehouse.
Solution
The loess-clay layers were bridged using pre-drilled “TERRA-MIX gravel columns” down to the load-bearing weathered layer beneath the individual and strip foundations. The “TERRA-MIX System” hybrid foundation was installed beneath the floor slab of the high-bay warehouse. Here, graded 0/90 mm material was filled into the settlement cones created by IMPULSE COMPACTION, after which three layers (each 45 cm thick) of material stabilized with a binder were installed. TERRA-MIX Bodenstabilisierungs GmbH served as the general contractor for the entire earthwork project, which included both the ground improvement beneath the building areas and the exterior landscaping.
Result
The high loads resulting from the individual columns and the high-bay warehouse were successfully transferred to the subsoil using the systems described above.
Система Impulse-Compaction
The IMPULSE COMPACTION system TERRA MIX is an innovative method of improving a building ground and impulse compaction of mediumly deep areas. All compactable grounds can hence be quickly and economically compacted. Compared to conventional methods used for building ground improvement such as vibration stuffing compaction, vibration pressure compaction, ground replacement, drilling stakes, ductile stakes, jet grounding or DYNIV(Dynamic Intensive Compaction) the IMPULSE COMPACTION system TERRA-MIX convinces with three essential advantages: BUILDING TIME SAVINGS, BUILDING COSTS SAVINGS, GENTLE ON RESSOURCES
