Improvement by injections

Soil improvement using injections is classified by injection method:

– When soil structure is disrupted

– When soil structure is undisrupted


Normally soil structure is disrupted when high pressure injections ( could be up to 10 MPa) take place or mixing/injecting methods are applied.

These methods are mainly selected if a bearing resistance under present footings is needed (construction by nearby building). Considerable amount of improvement by injections is used for water retainment from excavations or buildings.


In practice it’s a common experience to use injection methods for:


– Injected anchors

– Deep soil mixing

– Low pressure injections

– High pressure injections

– Chemical injections

– Diaphragm walls



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