An Evaluation of Trenchless Point Repair Solutions for Pipes of Varying Inner Diameter and Offset Joints

摘要

There are numerous point repair solutions in the pipeline industry. These can be broadly grouped into internal joint seals, mechanical sleeves, CIPP short liners and other. The pros and cons of available methods are not always clearly understood by the owners, engineers and installers. Some widely known brand name manufacturers of joint seals and mechanical sleeves are: WEKO-SEAL®, In-Weg seal, Quick Lock, Link-Pipe, LMK, HydraTite, Amex 10, and other. These products can be used for storm, potable water, wastewater and industrial pipes, conduits and drainage culverts. Materials for these types of repairs are specified based on anticipated exposure conditions after installation. When owners are in need of an economical solution for the maintenance of pipelines, the point repair solutions present an attractive alternative to more extensive repair or replace options. Quick Lock that meets ASTM F3110 is new in North America although it has been used for over 20 years in other countries. This paper introduces its features that no other point repair solutions offer. In addition, given that the suitability of the technology for a particular application shall always be jointly decided by the owner, the engineer and the installer, this paper provides an evaluation of available methods during this decision making process.