The Jet Grouting Drilling Rig

The jet grouting technology has been developed soil consolidation and waterproofing.
The soil is mixed directly with cement sand and clay layer uniform treatment site, continuous, non-polluting.
Advantages:
• The ability to obtain column consolidate the soil, and from 60 to more than 300 cm in diameter by using a small diameter drill holes, generally not more than 180 - 200 mm.
• More conducive to penetrate the base, rock, rock layers preexisting.
• Use light weight and small rigs working in a small area.
Techniques:
The jet grouting technology classification depends on the number of jet grouting concrete way:
· Mono-fluid system: cement grout is used as breaking-up and consolidation agent .
· Bi-fluid system: cement grout and air are used as breaking-up and consolidation agent .
· Triple-fluid system: water and air are used as breaking-up agents, while the cement grout is used as consolidation agent.
Applications:
• the support structure
• the bottom plug
• diaphragm walls
• ramp merge
• tunnel merger
• impervious wall spacing
• dam closure
All jet grouting techniques including drilling order during and rotating at a preset value, while the injected liquid at high pressure.