| Titre | A simplified approach for rockfall ground penetration and impact stress calculations |
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| Auteur | Wang, B; Cavers, D S |
| Source | Landslides vol. 5, no. 2, 2008, 6p., https://doi.org/10.1007/s10346-008-0123-6 |
| Image |  |
| Année | 2008 |
| Séries alt. | Secteur des sciences de la Terre, Contribution externe 20070334 |
| Éditeur | Springer Nature |
| Document | publication en série |
| Lang. | anglais |
| DOI | https://doi.org/10.1007/s10346-008-0123-6 |
| Media | papier; en ligne; numérique |
| Formats | pdf |
| Sujets | détermination des contraintes; pipelines; méthodes analytiques; érosion; géomathématique; géologie de l'ingénieur |
| Illustrations | analyses |
| Programme | Réduction des risques dus aux aléas naturels |
| Diffusé | 2008 04 25 |
| Résumé | (disponible en anglais seulement)
This paper presents a simple procedure for calculating rockfall penetration and ground impact stress for design of pipeline burial depth. Rockfall may damage
pipelines by penetrating through cover soils and damaging the pipeline by puncture or excessive impact stress. Design engineers may face a challenging question regarding what burial depth is required for adequate pipe protection. Greater burial depth
may provide better protection; however, there are usually site and economic constraints. This paper discusses a simple procedure for calculating the maximum rock penetration and ground impact stress due to rockfall. The procedure may be used to
estimate the minimum burial depth required to protect pipelines from rockfall damage. A case study involving a large boulder that fell down a slope and landed on a buried high-pressure gas pipeline is presented to demonstrate and verify the
procedure. A calculation was performed before the removal of the boulder to evaluate whether any damage was made to the pipeline. The calculated results agreed well with the actual conditions observed after the boulder was removed. |
| GEOSCAN ID | 224373 |
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