Construction Cost of Underground Infrastructure Renewal: A Comparison of Traditional Open-cut and Pipe Bursting Technology
Renewal of aging underground infrastructure is a major challenge that municipalities in North America face every day. Traditional replacement or renewal of these underground utilities uses open-cut excavation methods that can be disruptive to everyday life of citizens and expensive, particularly in built-up areas and in projects with difficult ground and site conditions. In contrast, trenchless technologies use innovative methods, materials, and equipment that require minimum surface excavation to renew and construct aging underground infrastructure. These new methods are considered to be more safe, cost-effective, efficient and productive than conventional open-cut projects. However, to select trenchless technologies in utility design, consulting engineers and utility owners need to compare their costs with open-cut methods.
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TRENCHLESS TECHNOLOGY AND PIPE BURSTING
OVERVIEW OF OPENCUT CONSTRUCTION
COST ANALYSIS OF OPENCUT AND PIPE BURSTING
CASE STUDY OF PIPE BURSTING VS OPENCUT
CONCLUSIONS AND RECOMMENDATIONS FOR FUTURE RESEARCH
Acrylonitrile Butadiene Styrene Actual Project Example Appendix Asbestos ASCE Pipe Bursting backfill bursting and open-cut bursting head City of Troy Clay Clayey cost and diameter cost comparison Cost Data Dallas Dallas Water Utilities Ductile Iron excavation existing pipe Figure Fit Analysis Fit trend line Five Mile Creek Ground Surface HDPE horizontal directional drilling hydraulic includes installation Length ft length of project linear logarithm of diameter logarithm of length manhole microtunneling Multiple Regression Nominal Diameter open-cut and pipe open-cut costs open-cut data open-cut method open-cut projects parameters per-inch-per-foot Pine Bluff Pipe Bursting Cost pipe bursting data Pipe Bursting Manual pipe bursting methods Pipe Bursting Project Pipe HDPE pipe material Pneumatic proc regression analysis regression line Reinforced Concrete Sanitary Sewer scattered plot specify storm sewer technique Total Cost traditional open-cut traffic disruptions trench wall Trench-at trenchless methods trenchless technology methods Trend Lines Comparison Troy Water U.S. sanitary underground infrastructure