Abstract: This paper describes part of an ongoing research project concerning high-density polyethylene (HDPE) liners used for pipeline rehabilitation. Tests were conducted in the laboratory, where a steel sleeve was welded on the ...

Abstract: A new formula is proposed to evaluate the efficiency of axially loaded pile groups. The derivation of the formula is based on the premise that the group effect can be taken into consideration only for the load component ...

Abstract: A lining system for pipeline rehabilitation uses the method of deforming then reforming a conventional polyethylene pipe to allow installation inside an existing pipe. The liner pipe can be structurally designed as a ...

Abstract: A new experimental apparatus was developed for determining the combined effects of mechanical stress and chemical exposure on the long-term durability of polymeric liners, which are widely used in civil and environmental ...

Abstract: Lining of underground pipeline networks with deformed/reformed high-density polyethylene (HDPE) liners is a trenchless technique frequently specified for rehabilitation. According to the current design practice, a liner ...

Abstract: This research examines the long-term performance of high-density polyethylene liners frequently used in rehabilitating pipeline networks. Buckling of two groups of samples—each consisting of 20 steel pipes lined with HDPE ...

Abstract: A large number of pile-supported bridge approach slabs in southeastern Louisiana were examined to identify the factors that affect their long-term performance. Design drawings and subsoil conditions at these sites as well ...