SHINGDA Construction

Jet Grout Pile (JGP)

Jet Grouting is a type of ground treatment (soil strengthening) technique widely used in civil engineering works. The process uses high energy jet of fluid to break up and loosen the soil follow by mixing (& partial replacement) with a cementing agent. The simultaneous lifting and rotation of the drill string during grouting results in the forming of a pile-like column of cement-soil mix, hence the term Jet Grout Pile (JGP).

Application of Jet Grouting

• Perimeter grouting prior to shaft excavation
• Base grouting to strengthen shaft construction
• Soft-eye grouting to facilitate TBM exit / entrance during pipe jacking
• Sealing of gaps within ERSS system (eg: utility gaps, non-interlocking sheetpiles, etc)

Set-up for Jet Grouting

• Capable of drilling up to 30m deep
• Grout pile coverage of up to 1.2m diameter
• Suitable for site with space constraint

Cement Grout Pile

Cement Grouting is the injections under pressure of cement or grout to fill fractures or voids in concrete structure, rock unit or soil.

Pressure Grouting (Chemical Grouting)

Chemical Grouting helps to stabilise soils for tunnelling, control water seepage and also to provide excavation support. It is the process of transforming granular soils into sandstone-like masses by filling the voids with low viscosity, non-particulate grout. It involves a sleeve port pie that is grouted into a pre-drilled hole followed by injection of the chemical grout under pressure through the ports.