Fairfield, Reid, Hounsome, Edwards, Sibbald
Posters - Additional Information # 2001 Munich
This paper provides estimates of the draw force needed to pull sub-ducts or cables through a series of typical ducted utility networks. Variables such as : coefficient of friction between the outside of the cable and inside of the duct, the main duct’s vertical diameter, the cable bundle or sub-duct’s external diameter, the length of cable or sub-duct being pulled and changes in the direction of drawing through various networks were examined. Simple spreadsheet based routines have been coded to enable engineers to calculate force versus distance drawn profiles for any complexity of network.