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15:28 Dec 7, 2010 |
English to French translations [PRO] Tech/Engineering - Transport / Transportation / Shipping / voies ferrées | |||||||
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| Selected response from: FX Fraipont (X) Belgium Local time: 07:11 | ||||||
Grading comment
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Summary of answers provided | ||||
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4 +1 | des poches dans le ballast soumises à une déformation plastique excessive |
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4 | Excessive plastic deformation: ballast pockets... |
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Discussion entries: 5 | |
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plastic deformation ballast pockets ?? des poches dans le ballast soumises à une déformation plastique excessive Explanation: ça veut dire de ces poches - ces creux/vides dans ce qui devrait être un ballast uniformément compacté, sont soumises à des déformations plastiques (elles changent de forme) au passage des trains. |
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Excessive plastic deformation: ballast pockets... Explanation: "Excessive Plastic Deformation" is the title of the paragraph : 'Excessive Plastic Deformation Ballast pockets also develop from permanent cumulative strain of soft, fine-grained subgrade soil as it consolidates or compacts when subjected to repeated loading (Chrismer, 1998). Vertical displacements occur as the soil compresses and addition of ballast is required to maintain track grade. Water becomes trapped in the ballast pocket reducing the shear strength of the surrounding soil." Use of Trench Drains to Improve Chronic Embankment Stability Problems - |
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