Abstract:

One of the biggest problems in road construction projects as well as infrastructure projects is their sustainability in the face of clay deposits or loose soils. In many cases, because of the problems that occur in the area of ​​the project, an efficient and cost-effective solution is justifiable. There are several solutions when the geotechnical conditions of the project site are weak and difficult. It is also important to know the types of problematic soils and their problems in choosing the appropriate method for improvement. Different methods enhance the geotechnical properties of problematic soil, such as fine grains, which are divided into two general groups of alternatives and mechanical-chemical recovery. The studied projects are two commercial-residential complexes in Ramsar and Clarabad, respectively, called the first and second projects, respectively. In Mazandaran province. In both projects, the dominant layers of subsurface layers consist of sandy soils with numbers less than 25. Loose sand soil is not responsive to loads loaded by structures and construction of structures on it leads to failure of load capacity. Also, considering the proximity of projects to the sea, the groundwater level is high and prone to liquefaction. Therefore, it is necessary to implement a method to strengthen the bed and reduce the liquefaction potential .