NA-21 - Trenchless Construction: Introduction

Today, the installation of gas, water, and wastewater pipelines is still predominantly carried out using the open trench installation. In view of the numerous disadvantages associated with this method, it is imperative that in the future trenchless pipeline construction be considered much more strongly as an alternative in the planning and construction of sewers and pipelines. For a better understanding of the complexity of the inner-city subsoil, this module provides a brief introduction to infrastructures in the urban subsoil.

After completing this module, you will have knowledge regarding:

• prerequisites for a functioning infrastructure;
• options for new pipeline construction;
• procedures for trenchless pipeline construction; and
• advantages over the open cut method.