26/30553626 DC

This standard 26/30553626 DC BS EN 14731 Execution of special geotechnical works. Ground treatment by deep vibration is classified in these ICS categories:

• 93.020 Earthworks. Excavations. Foundation construction. Underground works

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.