Grouting for sheeting, foundation piles and strengthening existing foundations

Grouting is a versatile technology for creating sheeting, foundation piles or for strengthening existing foundations. The technique involves the high-pressure injection of cement into the soil. The high pressure flushes away the soil, thus creating underground cement columns.

How is grouting done?

  1. We drill a thin 89-millimetre diameter drill rod into the ground.
  2. Once the drill rod has reached the required depth, we increase the cement’s injection pressure.
  3. Depending on the pile diameter required, we determine the rotation speed and the draw-off speed of the drill rod. The higher the pressure and the lower the draw-off speed, the larger the grout column will be. Columns of up to Ø 1.5 metres are perfectly possible.
  4. After executing the grout column, we apply the reinforcement.
  5. Depending on the nature of the subsoil and the specific situation, we grout from the bottom to the top, or vice versa.

What are the benefits of grouting?

  • Thanks to the compact machinery, grouting is also possible in very confined spaces.
  • The technique can be applied in almost any subsoil without prior lowering of the groundwater level.
  • Grouting is also possible under an existing foundation.
  • This water-inhibiting and earth-retaining sheeting screen is built before excavating the construction pit. This is an important added value with layered water-bearing earth layers.
  • Grouting can be used in combination with sheeting and pile foundations.
  • The technique is extremely suitable for deepening foundations under dwellings or for stabilising subsiding dwellings.

Grouting as sheeting for your construction pit?

When we use grouting for sheeting a construction pit, we prefer to work with half piles, so-called segment piles. This avoids space loss in the construction pit.

When excavating the construction pit, it is important to anchor the walls for horizontal stability.

Need grouting?