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.

Diaphragm walls are continues adjacent concrete walls to reduce mainly the underground water seepage and apart of engineering load-bearing elements to stabilize deep excavations with a strong vertical facing.

Rapid Impact Compaction (RIC) is an ideal method for increasing soil compaction and bearing capacity and reducing the settlement and the risk of liquefaction in loose Sands. This method is fast and economical and is environmental friendly.

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.