Brief Introduction Large diameter bored piles are used to support heavy loads of tall buildings or highway structures such as viaducts, with diameter generally exceeding 0.75m. We are capable of installing bored piles with diameters from 1.5m to 3.3m and with a maximum length of about 100m. The bored piling works undertaken by us are mainly with diameters ranging from 2.5m to 3.3m, with a maximum length of up to 100m.