AT – Drainage System

Installation length: 12 - 30 m
System: Coupled, cased drilling system
Application field: Far-ranging drainage, profound water drainage ahead of excavation

The AT – Drainage System provides deep-reaching dewatering for tunneling and civil engineering, using a steel tube encased in a PVC filter pipe to lower groundwater and stabilize the surrounding ground.

Fast, efficient installation

Installed using rotary-percussive drilling with simultaneous drilling and casing, the system ensures quick setup with internal flushing and back-flushing—even in flowing or ravelling ground.

Fast, efficient installation

Installed using rotary-percussive drilling with simultaneous drilling and casing, the system ensures quick setup with internal flushing and back-flushing—even in flowing or ravelling ground.

Installed using rotary-percussive drilling with simultaneous drilling and casing, the system ensures quick setup with internal flushing and back-flushing—even in flowing or ravelling ground.
Flexible for site conditions

Adaptable tube lengths allow use in confined spaces, with dewatering starting immediately after installation and optional vacuum pump connection for enhanced performance.

Flexible for site conditions

Adaptable tube lengths allow use in confined spaces, with dewatering starting immediately after installation and optional vacuum pump connection for enhanced performance.

Adaptable tube lengths allow use in confined spaces, with dewatering starting immediately after installation and optional vacuum pump connection for enhanced performance.
Installation with standard equipment

Compatible with conventional drilling machines and suitable for use even in flowing or ravelling ground conditions.

Installation with standard equipment

Compatible with conventional drilling machines and suitable for use even in flowing or ravelling ground conditions.

Compatible with conventional drilling machines and suitable for use even in flowing or ravelling ground conditions.

System components

AT - Drainage unit and tube

AT – Drainage Starter Unit, with drill bit
AT – Drainage Extension Tube, consists of an inner steel tube which is encased with a PVC filter pipe
AT – Drainage End Tube

Adapter

Drill bit adapter
Coupling adapter and drill rods

Other

End cap with ball valve, to close the drainage tube and control or stop the water flow

Product specifications

Installation length: 12 - 30 m ^*
System: Coupled, cased drilling system
Application field: Far-ranging drainage, profound water drainage ahead of excavation

^* longer drainage drills are possible

Ready-for-use AT – Drainage System, AT – 76/DR Starter Unit with Extension Tube

Need some help?

Talk to our experts about how we can help you today

Get in touch