Norman Howell

1 UKSTT PRESENTATION AN INTRODUCTION TO TRENCHLESS TECHNOLOGY AUTHOR: N ORMAN HOWELL UKSTT Council Member & SPECIAL PROJ ECTS MA NAGER SUBTERRA SYNOPSIS This paper provides an introduction to the benefits of using trenchless technology as a sustaina ble pipeline construction tool. Details of the advantages of the systems are given together with usage of the technology both in the UK and Internationally. An overview of the techniques currently available for the trenchless installation and rehabilitation of pipelines, ducts and cables is also included. INTRODUCTION Streetworks have become an everyday occurrence and can take the form of highway works involving either carriageway reconstruction or resurfacing or utility works involving either the installation of new networks or the repair of existing services. In both cases these are essential works, which are being undertaken for the benefit of the general public, but some level of delay and disruption is unavoidable during the construction phase. This of course leads to a cost in terms of lost time and the use of extra resources, which is difficult to quantify and is not usually taken into consideration in the overall cost of the works. The Transport Research Laboratory (TRL) estimate this indirect cost of trenching is about twice the installation cost of all utility installation works each year – so some new initiative is at best overdue. By careful planning of the works disruption can be kept to a minimum but for highway works there is no magic formula since the works must involve a certain degree of carriageway occupancy. Their effects can be reduced by optimising the sequence of the works and undertaken them out of peak hours but the general public will still be inconvenienced . With utility works there are a number of construction options available many of which utilise trenchless technology however there successful application relies on the works being planned.

Norman Howell

Documents

Transcript of Norman Howell