ABSTRACT
For software controlled tunnel lining installation mechanical connectors are necessary both to guide the segments during the installation process and to take over the pull out forces caused by gaskets. This paper describes a product which is able to provide all of that requirements. A special production method allows to produce a plastic material with high thickness, without any internal stress distribution and homogenous property. Based on this casting technology, called “POLO-RIM”, the requirements for a mechanical connector could be reached. Successfully applications on projects in Milan/Italy, and in Paris/ France, confirm the high quality.
