The historical development of pipe jacking called for controlled processes for both large and smaller diameters. Precisely in response to this growing demand, Braumann established itself in the so-called full-face technology.
Today, the full-face technology is available for both non-walk-in and walk-in nominal cross-sections. It is the ideal solution for environmentally friendly jackings in groundwater without expensive additional measures.
Braumann has been taking advantage of full-face technology for many years. Thanks to our ever-growing know-how, we can permanently expand the limits of this technology with the help of our technical team as well as the specialized Braumann workshop.
Based on geological preliminary information, we adjust the cutting wheel and the tool placement to the respective construction project. During the jacking, the construction management and technical support monitor all jacking parameters and continuously compare them with the specific project requirements.
Due to the rotational movement of the drill head and the contact pressure of the press cylinders, the soil is dismantled at the working face. In the crushing chamber, the soil is crushed and the conveying medium is enriched with the degraded material.
Via conveyor lines the degraded material reaches the separating plant, where the solids are filtered out. The conveying medium is fed back to the crusher room via the feed line.
When the jacking machine has entered the target shaft, all machine parts are recovered via the target shaft and the pipe string can be pushed into position.
After completion of the jacking, the technically necessary overlap is pressed by means of insulation suspensions. In the case of very long sections, the cylinders of all intermediate press stations are removed. After closing the lubrication openings, removing all supply- and disposal lines, the final cleaning and final measurement, the section can be handed over to the customer.
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