prEN 14731

Taikymo sritis

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.