Soil improvement is a pack of solutions to help the soil to tolerate the applied loads and conditions in a safe and determined manner. Solutions like compaction and RIC and stone columns, soil replacement, drainage, grouting, soil mixing and so on, are mainly used in this regard.

Caissons are huge semi deep concrete foundation which provide enough balance and stability for its superstructure and usually is embedded on a previously improved ground. It is also applicable to use replaced granular soil to act as in minor concentrated loose sands.

Sheet pile walls are usually installed to support temporarily or permanently the excavations in unstable soils. In large depth the sheet piles are usually supported from lateral movements by anchorage or reciprocal supports.

This method is highly innovative for building Earth walls. It creates masterpiece engineering walls which are totally compatible with the nature and green texture of urban areas.