Techniques

JET CRETE

Jetcrete is an advanced technology of Jet grouting, it allows you to flexibly design the cost and diameter or compressive strength of the Jetting column in accordance with the soil and site conditions.

Summary of the Techniques

Jetcrete creates a column of Jet grout, the drill stem of the Jetcrete monitor then advances to the required depth and the jets (high pressurized air and cement slurry) erode and mix with the in situ soil while withdrawing the rods. Creating these geometries of grouted soil gives a fixed scope of mechanical strength and water sealing to the soil.

Jetcrete Features

Jetcrete has developed the following features compared with mechanical soil improvement:

  • Creates a large jetting column using small equipment.
  • Improves partially choosing the layer of soft ground.
  • Improves cohesive soil, sand and gravel layers.
  • Creates a jetting column with a large depth.
  • Executable in existing buildings.
  • Executable in factories which are in operation.
  • Makes less vibration and noise
  • Choose from a diameter of 0.5m to 8.5m.
  • Allows you to set the unconfined compressive strength (200KN/㎡~10MN/㎡).

Range of applications

Applications

Cut and cover method

Ground improvement during excavation

Preventing boiling and heaving, increasing bearing force of bottom board, precedent ground girder, etc.

Sealing the defects on earth retaining wall

For shield tunneling

Existing structures

Case Study for Earthquake Reinforcement or Countermeasures for Liquefaction

Reinforcing Structures or Bridge Piers

Earthquake Reinforcement for the High Standard Bank

Liquefaction Prevention for Revetment Structure

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