Pipelines subject to slow landslide movements: Structural modeling vs field measurement

Book · Sun Dec 01 04:00:00 EST 1996

OSTI ID:400932

Bruschi, R; Glavina, S; Spinazze, M; Tomassini, D ^[1]; Bonanni, S; Cuscuna, S ^[2]

---

1. Snamprogetti S.p.A., Fano (Italy)
2. Snam S.p.A., Milan (Italy)

In recent years finite element techniques have been increasingly used to investigate the behavior of buried pipelines subject to soil movements. The use of these tools provides a rational basis for the definition of minimum wall thickness requirements in landslide crossings. Furthermore the design of mitigation measures or monitoring systems which control the development of undesirable strains in the pipe wall over time, requires a detailed structural modeling. The scope of this paper is to discuss the use of dedicated structural modeling with relevant calibration to field measurements. The strain measurements used were regularly gathered from pipe sections, in two different sites over a period of time long enough to record changes of axial strain due to soil movement. Detailed structural modeling of pipeline layout in both sites and for operating conditions, is applied. Numerical simulations show the influence of the distribution of soil movement acting on the pipeline with regards to the state of strain which can be developed in certain locations. The role of soil nature and direction of relative movements in the definition of loads transferred to the pipeline, is also discussed.

• OSTI ID: 400932
• Report Number(s): CONF-9606279--; ISBN 0-7918-1494-7
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
EXPERIMENTAL DATA
GROUND MOTION
ITALY
LANDSLIDES
MATHEMATICAL MODELS
PIPELINES
SOIL MECHANICS
SOIL-STRUCTURE INTERACTIONS
STRAIN GAGES
STRESS ANALYSIS
STRUCTURAL MODELS