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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