PIPEJACKING UNDER A VITAL RAIL LINE AND ROAD LINK

摘要

The Brookfield freight line is the only rail freight network in the southern half of Western Australia and serves as a vital link for moving a range of commodities, including grain, iron ore, coal, alumina, bauxite and interstate freight. D. J. Mac Cormick was tasked with the challenge of installing a 1,940 mm concrete jacking pipe under the line, without disturbing trains or traffic on the nearby Southwest Highway. Significant pre-planning was instrumental to the success of the project, which required a high-level of communication between the stakeholders, which included Brookfield and Water Corporation. During the pre-planning stage, pipejacking was selected as the appropriate method to install the new pipeline. The client also stipulated that the 1,422 mm carrier pipe should be welded and installed inside the jacking pipe using spacers.