Reverse Circulation Drilling (RCD)
RCD is one type of bored pile machine suitable for limited working space and required large pile size. Small size of machine generates lightweight operation which is considerable on platform having low bearing capacity or temporary platform especially on bridge-over-river construction. Reverse circulation method is best for sandy soil and suitable for various type of soil formation. RCD machine is capable to drill bored pile size from 900mm diameter to 3200mm diameter with depth going to maximum 120m.
