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Each of the DSA in field utility installation trucks is equipped with an impact moling tool to enable the easy completion of any short bores eg; pathways, driveways and laneways.
Impact moling is a trenchless installation method for placement of small diameter pipes, ducts and cables, in which percussion or hammering action of a pneumatic piercing tool is used to create the bore by compacting and displacing the soil rather than removing it. The method typically is non-steerable, although steerable systems have reached the market in recent years.
Feasibility of the method is restricted by its generic limitations (limited boring diameter and length) and by local ground conditions that can greatly affect performance. Adverse ground conditions may include cobbles, dense dry clays, and other non-compactable soils. Such soils may drastically reduce penetration rates; contribute toward surface upheaval and/or deviation from the desired straight-line path.
Impact moling provides another excellent solution to the installation of underground utilities without the need for open cut excavation and the associated disruptions and reinstatement.
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