A Guide for the Design of Water Transmission Pipelines

Mielke, Richard

doi:10.1061/40745(146)54

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To assure the indefinite life of the pipeline, designers should consider engineering pipelines for working and surge pressures higher than those initially expected to account for corrosion among other issues. In a previous paper it was recommended that all transmission lines be designed for no less than 150 psi working pressure with appropriate addition for surge so no "weak links" will exist and the system will have the ability to handle higher pressures for future demand (Mielke, 2004). Surge has a significant impact on MMTP longevity and especially for concrete pressure pipes where under-design or corrosion of reinforcement wire can result in cracking of the cement-mortar coating and/or over stressed reinforcing wire.…”

Section: Structural Design For Internal Pressures and External Loadsmentioning

confidence: 99%

How to Provide Indefinite Life for Municipal Metallic Transmission Pipelines

Mielke¹

2007

Pipelines 2007

Self Cite

View full text Add to dashboard Cite

Three current corrosion strategies used for Municipal Metallic Transmission Pipelines (MMTP) (defined as concrete pressure pipe, ductile iron pipe, or steel pipe 24" diameter and larger) as part of a comprehensive Asset Management Program are: 1. Run to Failure 2. Run to Failure and Repair as Required 3. Operate and Maintain to Provide an Indefinite Life (repair-free service life >100 years) The paper will discuss the short-and long-term impacts of each strategy and detail why the strategy of "Operating and Maintaining to Indefinite Life" provides the most reliable Municipal Metallic Transmission Pipelines with the fewest repairs at the lowest total cost of operation to the owner. It will be shown that the strategies of "Run to Failure" and "Run to Failure and Repair as Required" are overall more costly since both strategies accept corrosion, unscheduled repairs, planned failure of the pipeline and the resulting high replacement costs of the MMTP. The paper will focus on methods of design, corrosion protection, maintenance and installation which allow all MMTP materials to be equally operated and maintained for an indefinite life.

show abstract

Section: Structural Design For Internal Pressures and External Loadsmentioning

confidence: 99%