With the new GRUNDOSTEER, NODIG full-range supplier TRACTO is adding a guided rod pusher to its product range, which combines proven methods of trenchless pipe installation in an easy-to-operate, robust and compact machine. The special feature of the GRUNDOSTEER is the possibility of directional corrections during the static process for establishing house connections and installing product or protective pipes over in the most simple and safe way.
Locatable guiding head guarantees targeting accuracy
In terms of installation method, guided rod pushing with GRUNDOSTEER is located between non-steerable soil displacement with impact hammers and steerable horizontal directional drilling with mini fluid-assisted drilling rigs. As with the soil displacement hammer, the target is aimed at by means of an aiming frame and the soil is displaced during driving, in this case by hydraulic jacking. As with the HDD method, the GRUNDOSTEER is first used to create a pilot drive along the planned path. In the process, the locatable guiding head is tracked above ground with a locating device, indicating any deviations from the intended path. If directional corrections are necessary, the position of the guiding head can be easily read off a time scale on the rods’ position connector and changed by rotation in the desired direction. Upon arrival in the target pit, the head is replaced by an expander enlarging the path to the diameter of the pipe attached as it is pulled back. Unlike the HDD method, no drilling fluid is required when applying the guided rod pusher.
Low-priced entry to correctable pipe installation technology
Getting started with the correctable trenchless rod pushing method is easy in many respects. Thanks to the simple, but very reliable, steering principle and the easy directional correction, even less experienced operators can accurately establish house connections or short undercrossings using this method and easily gain first experiences with correctable methods. Additionally, the necessary capital expenditure for the GRUNDOSTEER is relatively low. For example, users who already own soil displacement hammers can use their GRUNDOSCOPE aiming frames to align the GRUNDOSTEER. A customary hydraulic power unit, which is usually already part of the machinery, is sufficient to drive the guided rod pusher. The fact there is no need for costly drilling fluid with rod pushing and only a simple locating device is required for checking the direction, have a further positive impact in terms of costs.
Advanced design in TRACTO quality
The advanced design of the GRUNDOSTEER in proven TRACTO quality also pays off quickly. The guided rod pusher "Made in Germany" is designed for maximum durability with high operating comfort. For example, the specially designed SIMCON® rods are not elaborately screwed together, but firmly connected via a simple bolt connection. The control panel can be flexibly mounted at various positions on the machine frame and also be optimally adapted to the height of the machine operator, enabling him to work comfortably while standing. The thrust speed is regulated by a smooth-running hand lever. Further advantages of the GRUNDOSTEER are a base frame, which can be dismantled into individual parts and a special adapter for securely bracing the unit in the excavation pit.
Optimal for short undercrossings and house connections
The GRUNDOSTEER is ideal for short undercrossings in dense infrastructures without much effort and for quickly and easily establishing house connections of any kind. At just 1 m in length and 80 cm in width, the very compact rig can work from out of a pit towards the building or from the building through a core bore in the house wall. A total of 130 kN is available for rod pushing and pulling in the pipes, giving the guided rod pusher its type designation PS130.
First tasks successfully completed
The first successful applications of the 'PS130' at home and abroad speak for themselves. For example, during an operation of the GRUNDOSTEER for the utility company Veolia near Paris, a DN 25 PEHD drinking water pipeline was safely laid through a dense network of pipes under the entrance hall of a building. The client, who supplies 4.6 million people in the Paris area with drinking water, was completely satisfied.
In Berlin-Pankow, three PE pipes OD 50 mm were laid in a bundle for the civil engineering company F+E Tiefbau using the GRUNDOSTEER PS130 in the course of the broadband expansion underneath a busy road. As a double-track tramway ran along the centre of 'Breite Straße', the open cut method was not an option. The use of a soil displacement hammer was also not approved due to the low cover of approx. 1.0 m for the road undercrossing. Although interference from the tram overhead lines made locating difficult, the pilot bore was on-target and the pipe bundle pulled in without any problems with an expander OD 125 mm.
Users can test the GRUNDOSTEER
Civil engineering companies who would like to test the GRUNDOSTEER on one of their projects are welcome to contact the TRACTO sales staff or their local representative.
A detailed description of the PS130 guided rod pusher with technical data is available online at:
https://tracto.com/en/Products/GRUNDOSTEER-GUIDED-ROD-PUSHER
Locatable guiding head guarantees targeting accuracy
In terms of installation method, guided rod pushing with GRUNDOSTEER is located between non-steerable soil displacement with impact hammers and steerable horizontal directional drilling with mini fluid-assisted drilling rigs. As with the soil displacement hammer, the target is aimed at by means of an aiming frame and the soil is displaced during driving, in this case by hydraulic jacking. As with the HDD method, the GRUNDOSTEER is first used to create a pilot drive along the planned path. In the process, the locatable guiding head is tracked above ground with a locating device, indicating any deviations from the intended path. If directional corrections are necessary, the position of the guiding head can be easily read off a time scale on the rods’ position connector and changed by rotation in the desired direction. Upon arrival in the target pit, the head is replaced by an expander enlarging the path to the diameter of the pipe attached as it is pulled back. Unlike the HDD method, no drilling fluid is required when applying the guided rod pusher.
Low-priced entry to correctable pipe installation technology
Getting started with the correctable trenchless rod pushing method is easy in many respects. Thanks to the simple, but very reliable, steering principle and the easy directional correction, even less experienced operators can accurately establish house connections or short undercrossings using this method and easily gain first experiences with correctable methods. Additionally, the necessary capital expenditure for the GRUNDOSTEER is relatively low. For example, users who already own soil displacement hammers can use their GRUNDOSCOPE aiming frames to align the GRUNDOSTEER. A customary hydraulic power unit, which is usually already part of the machinery, is sufficient to drive the guided rod pusher. The fact there is no need for costly drilling fluid with rod pushing and only a simple locating device is required for checking the direction, have a further positive impact in terms of costs.
Advanced design in TRACTO quality
The advanced design of the GRUNDOSTEER in proven TRACTO quality also pays off quickly. The guided rod pusher "Made in Germany" is designed for maximum durability with high operating comfort. For example, the specially designed SIMCON® rods are not elaborately screwed together, but firmly connected via a simple bolt connection. The control panel can be flexibly mounted at various positions on the machine frame and also be optimally adapted to the height of the machine operator, enabling him to work comfortably while standing. The thrust speed is regulated by a smooth-running hand lever. Further advantages of the GRUNDOSTEER are a base frame, which can be dismantled into individual parts and a special adapter for securely bracing the unit in the excavation pit.
Optimal for short undercrossings and house connections
The GRUNDOSTEER is ideal for short undercrossings in dense infrastructures without much effort and for quickly and easily establishing house connections of any kind. At just 1 m in length and 80 cm in width, the very compact rig can work from out of a pit towards the building or from the building through a core bore in the house wall. A total of 130 kN is available for rod pushing and pulling in the pipes, giving the guided rod pusher its type designation PS130.
First tasks successfully completed
The first successful applications of the 'PS130' at home and abroad speak for themselves. For example, during an operation of the GRUNDOSTEER for the utility company Veolia near Paris, a DN 25 PEHD drinking water pipeline was safely laid through a dense network of pipes under the entrance hall of a building. The client, who supplies 4.6 million people in the Paris area with drinking water, was completely satisfied.
In Berlin-Pankow, three PE pipes OD 50 mm were laid in a bundle for the civil engineering company F+E Tiefbau using the GRUNDOSTEER PS130 in the course of the broadband expansion underneath a busy road. As a double-track tramway ran along the centre of 'Breite Straße', the open cut method was not an option. The use of a soil displacement hammer was also not approved due to the low cover of approx. 1.0 m for the road undercrossing. Although interference from the tram overhead lines made locating difficult, the pilot bore was on-target and the pipe bundle pulled in without any problems with an expander OD 125 mm.
Users can test the GRUNDOSTEER
Civil engineering companies who would like to test the GRUNDOSTEER on one of their projects are welcome to contact the TRACTO sales staff or their local representative.
A detailed description of the PS130 guided rod pusher with technical data is available online at:
https://tracto.com/en/Products/GRUNDOSTEER-GUIDED-ROD-PUSHER
