Pipe bursting technique in Bad Hall
Sureline pipes for a main water line
Year of installation: 2014
Material: Sureline with protective layer (PE-100-RC + PP-R)
Dimension: DA 110 mm SDR11
Medium: potable water
Temperature: 10 °C
To ensure a good quality of water, the existing pipes were replaced with a polyethylene (PE) pipe. Pipes made of PE are physiologically safe, flexible and the forming of deposits in the pipe is highly unlikely.
For the installation of the new pipeline the pipe bursting (berstlining) technique was selected. During the process of pipe bursting the existing pipe gets burst and replaced with a new pipeline. Depending on the soil type, an enlargement of the cross-section of about 30 % is possible.
Single steps of a pipe bursting technique.
Cutting the pipe – bursting the pipe – pulling the new line.
Before the installation, the single pipe sections are joined using the butt welding method. Afterwards a system of rods gets pulled through the existing pipeline and a bursting head with the attached new pipeline is connected to the rods. In the next step the rods are pulled back by a hydraulic power unit in the exit pit. During the process the old pipeline is cut (steel pipes) or burst (ceramic or asbestos cement pipes). For better gliding properties during the installation the new pipeline is coated with a lubricant.
By using this method a 100% tight and long-lasting pipeline is installed without any massive traffic disruption.