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prEN 14731 Viešoji apklausa

Komentavimo iki data 2026-10-29

Specialiųjų geotechnikos darbų atlikimas. Grunto apdorojimas giluminiu vibravimu

This document establishes general principles for the execution of soil treatment by deep vibration. The following types of treatment are covered by this document: - deep vibratory compaction to densify the ground as mentioned in EN 1997 3:2025, Annex I, Table I.1; - vibrated columns formed by inserted granular material laterally/radially compacted against the surrounding ground to form a stiff composite column-soil structure (vibrated compacted granular columns) as mentioned in EN 1997 3:2025, Annex I, Table I.2; - vibrated columns formed by inserted material developing unconfined compressive strength comprising a composite of binder and granular material (rigid columns) as mentioned in EN 1997 3:2025, Annex I, Table I.2. The following treatment methods are covered by this document: - methods in which depth vibrators, containing oscillating weights which cause horizontal vibrations, are inserted into the ground; - methods in which compaction probes are inserted into the ground using a vibrator, which remains above ground surface, and which oscillates in a vertical mode. Treatment methods are outlined in Annexes A, B, C and D. The following treatment methods, among others, are not included in this document: - dynamic compaction, dynamic replacement and other methods in which some form of treatment is applied to the ground surface; - uncompacted granular columns primarily used as drains; - explosive compaction.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis

prEN 18374 Viešoji apklausa

Komentavimo iki data 2026-09-15

Žemės darbai. Geotechniniai laboratoriniai bandymai. Kalkėmis ir (arba) hidrauliniais rišikliais apdorotos medžiagos. Grunto tinkamumo apdorojimui nustatymo bandymas

This document specifies a test method to determine the suitability of a soil to be treated with lime and/or hydraulic binders, with regard to volumetric swelling and mechanical strength, within a period not exceeding two to three weeks. This test can be integrated into the general method of a study of treatment of materials with lime and/or a hydraulic binder, in compliance with standard EN 16907 4. It is applicable to soils and alternative (or anthropogenic) materials treated with lime and/or hydraulic binders for the construction of embankments and capping layers; in the areas of roads, railways and airports; industrial or commercial platforms; hydraulic works and road foundations. The results of this test: — are only valid for the configuration tested (soil, treatment product, dosage); — are in no case usable for dimensioning a structure including treated materials. The values currently accepted to define treatment suitability are indicated for information in Annex A.

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