Engineers

Soil Stabilization - Retention

The terms soil retention and ground stabilisation are often used in the wrong context.  In civil engineering terms it is important to know the difference.

Soil retention; is where a construction sequence is commenced so that future excavation of the soil is retained in a stable and safe form for the purpose of construction and on going safety.

Ground stabilisation; is where the ground is already unstable or unadequate in bearing capacity.  Examples of this are areas of potential soil movement (landslip) or underpinning an existing structure that is experiencing foundation settlement.

The most appropriate engineered solution will depend on many factors including:

  • Site safety and stability
  • Site access (personel and machinery)
  • Soil conditions
  • Temporary or permanent solution (design life of remedial works)

Screwpile Australia and the STG group offer engineer certified solutions including:

  • Screwpile and Steel Sheet Shoring
  • Microfine Cement Grout Soil Injection Curtain Walls and Columns
  • Sheetpiles
  • Contiguous Concrete Piles

Wherever practical we promote none-vibration solutions where sites are unstable or where existing structures are near by.  The two most effect methods are injecting Microfine cement grout into the soil, or by installing Screwpiles and steel sheet shoring which is simply pushed into the ground as there is no vibration associated with either process.