Podrobnosti návrhu
| Název | Execution of special geotechnical works - Ground treatment by deep vibration |
|---|---|
| Číslo | prEN 14731 |
| Zdroj | CEN |
| Komise | CEN/TC 288 (Execution of special geotechnical works) |
| Zkontrolujte datum zahájení | |
| K připomínkám do | |
| Oblast zaměření |
Akce
Anotace
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.
Instrukce
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