| 摘要 |
An apparatus for forming a drainage assembly within and along an elongate trench is disclosed. The apparatus includes a conduit guide means adapted to dispose a length portion of the elongate conduit within the trench, and an aggregate material delivery means adapted to distribute aggregate material within the trench such that the length portion of the elongate conduit within the trench is substantially surrounded by the aggregate material. Movement of the apparatus along the trench in use disposes subsequent length portions of the elongate conduit and further aggregate material within and along the trench to form the drainage assembly. |
