Fatemeh Shamsi Sadr - MS Student in geotechnics in Rouzbahan nonprofit institute in Sari, Iran
Siavash Salamatpoor - Ph.D. Candidate in Geotechnics, Najafabad Branch, Islamic Azad University, Najafabad, Iran
Hossein Motaghedi - Ph. D. in Geotechnics, Dep. of Civil Engineering, Qaemshahr Branch, Islamic Azad University, Qaemshahr

Due to spreading the range of problematic soils and the necessity of implementing the development and civil projects in these location, the geotechnical investigation of these Kinds of Soils is quite necessary, because the lack of paying attention to these Soils cause extensive damages in the developmental and structures. Problematic Soil is a type of soils that in large construction projects cause a lot of engineering and technical problems such as cracking building, asymmetric settling of building, and vising the levels of underground waters which in low points and because of swelling the site can create main problems for the building foundations..One of the most important factors for having a stable and resistance building is the recognition and identification of the subsoilwhich the building is performe upon it. In this regard, recognizing and identifying the problematic soils seems important. In this paper, it has been tried to recognize and identify the problematic soils and then evaluation of problematic soil of the site of constructing Welfare Office of Poldokhtar City which is a represcntation of the lack of paying attention to the geotechnical considerations during construction.

problematic soils, Poldokhtar City, Asymmetric settling, Geotechnical investigation