Installing a Raw Water Line by Microtunnelingby Alex E. Novak,
Abstract: Construction began in 1991 on a new water treatment plan for the Towns of Cary and Apex, with B. Everett Jordan Lake as a water source. Installation of two 1,400 mm raw water lines approximately 180 and 210 meters in length were required, with a maximum burial depth of 15 meters onshore and with the offshore portion in 1.2 meters of soil cover in 4 meters of water. Microtunneling was selected as the method for installation. Use of microtunneling allowed the lines to be installed with reduced environmental impacts and reduced disruption to recreational users of Jordan Lake. This paper will discuss pipe materials, corrosion protection and construction techniques, including retrieval of equipment in a submerged condition.
Subject Headings: Microtunneling | Water management | Construction equipment | Construction materials | Water treatment | Lakes | Developing countries | Pipelines | Water meters | Jordan | Middle East
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