Page 157 - Reliability and Maintainability of In service Pipelines

References (2004) 276 EPB (1965) BS78-2 (1965) BS78-2 (2004) al. et Sadiq (2004) al. et Sadiq (2005) C600, AWWA (1965) BS78-2 (2004) al. et Sadiq (2004) al. et Sadiq (2004) al. et Sadiq (2004) al. et Sadiq (2005) C600 AWWA (2004) al. et Sadiq (2001) Marshall (2001) Marshall (200

Max 0.7 260 100,000

Dev. 18.85 3 10 27
St. 0.1 14.28 0.7 0.04 0.20 125 15,000 0.0216 0.375 0.024 20,000 200 0.18 0.5 0.08 0.06

Mean 0.45 254 16 0.235 1.32 625 105,000 0.108 1.5 0.12 412,000 6500 18.85 3 10 26 0.92 2.54 0.4 0.32

Study Min 0.35 240 30,000

Case
the Units MPa MPa N/mm 3
in mm mm mm N mm
Used

Variables corrosion Internal corrosion External corrosion Internal corrosion External

Random coefficient pipe of

Basic Pressure moment coefficient ditch elasticity coefficient coefficient length weight constant constant

of diameter thickness of of factor load load effective
Values Variable Internal Inner Wall Bending Calculation Width Modulus Defection Impact Surface Wheel Pipe Unit Soil Multiplying Exponential

5.6
TABLE Symbol P D d K m C d B d E P K d I c C t F A γ k n