Basement Construction

GSS through our Geostructural Solutions brand particularly excel at basement construction below or near existing buildings. Our range of specialist restricted access piling, underpinning, structural, temporary works and groundworks skills allow us to complete even the most complicated schemes in house.  We regularly demonstrate this to the best effect for our customers by creating underground space and increased property value. Our experience includes warranty backed multi-story basements, below the water table and exceeding 11m depth, for prestigious properties in London, in the logistically most challenging locations.

 

Our engineering team, working with our long term craftsmen on site, can deploy our range of specialty skills and select the most appropriate construction methods for the project. We are able to deliver our projects using the traditional "Bottom-up" approach or "Top-down" approach. Whatever the approach, we always aim to ensure that spend is minimised by utilising parts of the permanent structure to minimise the temporary works required.  We are often able of undertake basement and superstructure installation works concurrently, or with significant overlap.  Our engineers like to work closely with the architect and structural engineer from an early stage to ensure best value is realised.

 

We are able to offer the following skills and services when constructing basements:

  • Industry leading experience in high end residential basements in logistically challenging locations
  • In-house engineering skills to design and coordinate temporary and permanent designs
  • Long term crews of skilled and trained temporary works coordinators, site supervisors and craftsmen
  • In house specialist plant including drilling rigs, excavators, conveyor systems supported with local maintenance teams
  • Various options for guaranteeing elements such as waterproofing

GSS through our Geostructural Solutions brand particularly excel at basement construction below or near existing buildings. Our range of specialist restricted access piling, underpinning, structural, temporary works and groundworks skills allow us to complete even the most complicated schemes in house.  We regularly demonstrate this to the best effect for our customers by creating underground space and increased property value. Our experience includes warranty backed multi-story basements, below the water table and exceeding 11m depth, for prestigious properties in London, in the logistically most challenging locations.

 

Our engineering team, working with our long term craftsmen on site, can deploy our range of specialty skills and select the most appropriate construction methods for the project. We are able to deliver our projects using the traditional "Bottom-up" approach or "Top-down" approach. Whatever the approach, we always aim to ensure that spend is minimised by utilising parts of the permanent structure to minimise the temporary works required.  We are often able of undertake basement and superstructure installation works concurrently, or with significant overlap.  Our engineers like to work closely with the architect and structural engineer from an early stage to ensure best value is realised.

 

We are able to offer the following skills and services when constructing basements:

  • Industry leading experience in high end residential basements in logistically challenging locations
  • In-house engineering skills to design and coordinate temporary and permanent designs
  • Long term crews of skilled and trained temporary works coordinators, site supervisors and craftsmen
  • In house specialist plant including drilling rigs, excavators, conveyor systems supported with local maintenance teams
  • Various options for guaranteeing elements such as waterproofing

Solimec SR95

Our SR-95 rig can operate in rotary and CFA modes and is the extended mast version with wider tracks for stability, has remote tracking for loading/unloading and a dual auger cleaner to improve cleaning efficiency. In rotary (LDP) mode it can be fitted with a locking kelly bar to bore to depths of 70m at diameters ranging from 600mm to 1900mm. In CFA mode it can be configured in multiple configurations (4 line and 2 line) to meet site requirements. CFA bored lengths of up to 34m and diameters ranging from 350mm to 1200mm can be achieved.  The rig has a weight of about 100tonnes and has a Euro stage V engine.

For more information & specifications
download the PDF below

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Super Kitten

This rig is ideally suited for extremely restricted sites. It has been designed to fit through a standard doorway of width 700mm. Capable of drilling case and auger piles up to 340/300mm diameter to depths of 23m and SFA piles up to 300mm diameter to depths of 12m.The power to weight ratio of this rig cannot be beaten.

For more information & specifications
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Klemm 702

The Klemm 702 is a restricted access rig which can produce excellent weight to pile diameter results. Capable of drilling 508/450mm case and auger piles to a depth of 26m and SFA piles to depths of 16m. With the ability to work remotely up to 50m from the power pack via umbilical hoses, the rig is an excellent choice for basement works, or working within existing buildings for floor or mezzanine upgrade works.

For more information & specifications
download the PDF below

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Klemm 708

The Klemm 708 is ideal for tight access sites where umbilical hoses would cause a logistical issue. Capable of drilling 508/450mm case and auger piles to a depth of 26m and SFA piles to depths of 18m. At 10tonnes the rig is ideal for renovation works from an existing slab or minimally designed piling mats.

For more information & specifications
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Klemm 709-2 and 709-3

The Klemm 709-2 and the 709-3 are excellent mid-range rigs with respective weights of 13.5 and 18.5 tonnes.  Both rig types are capable of installing case and auger piles with diameters up to 660/600mm and to depths of 32m dependent on ground conditions. The 709 can also install SFA piles to diameters of 600mm overcoming the problem of operating a full size CFA rig on smaller sites or where restricted headroom exists.

For more information & specifications
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Solimec SR75

Our SR-75 Blue Tech model rig can operate in rotary and CFA modes and is the extended mast version with wider tracks for stability, has remote tracking for loading/unloading and dual auger cleaner to improve auger cleaning efficiency. In rotary (LDP) mode it can be fitted with a locking kelly bar to bore to depths of 70m at diameters ranging from 450mm to 1900mm. In CFA mode it can be configured in multiple configurations (4 line and 2 line) to meet site requirements. CFA bored lengths of up to 31m and diameters ranging from 350mm to 1200mm can be achieved.  The rig has a weight of about 80tonnes and has a Euro stage V engine

For more information & specifications
download the PDF below

download pdf

Please contact us for more information