Geoss Good Practice For Installation Of Jacked Foundation Piles In Singapore -

If termination criteria are met but the pile is significantly shorter than the design depth, the designer must assess if the shallower depth is acceptable. 4. Quality Control and Safety

Stringent safety and quality measures are required by the Ministry of Manpower (MOM) and Building and Construction Authority (BCA) .

Jacking continues until practical refusal is reached. The load is then released and reapplied to measure the "set". If termination criteria are met but the pile

Pile testing must be conducted under the direct supervision of a designated person .

A pile is generally considered "set" if the downward movement does not exceed 10 mm (some guidelines specify 5 mm ) during a holding time of at least 30 seconds . Jacking continues until practical refusal is reached

Once design parameters are verified via ULT, the Qualified Person (QP) must obtain written concurrence and submit interpretation reports to the BCA before commencing working pile installation.

Typical allowable pile head settlements are 15 mm at 1.5 times the working load and 25 mm at 2.0 times the working load. A pile is generally considered "set" if the

GeoSS recommends achieving two consistent sets before termination.