Behavior Study of Cemented Specimen by Biological Technique after Disturbance

With the population growth and consequently the requirement for development of civil constructions, it is necessary to design appropriate foundations for resisting structural loads. Soil weakness in bearing capacity of geotechnical elements has forced the researchers to continuously follow a solution to compensate for this deficiency. Within the past two decades, many studies have been carried out regarding the performance of this technique in optimization of the soil. One technique which is nowadays highly considered due to compatibility with the environment, high efficiency and low cost, is Biological Optimization Technique. One of the characteristics of this type of optimization is its ability for recovering after disturbance. In this research it has been tried to analyze the behavior of cemented specimens after disturbance and reconstruction. For this purpose, after construction of cubic specimens with dimensions of ۲*۶*۶ cm and applying the disturbance and reconstruction, their shear strength under different vertical stresses has been evaluated by direct shear test.

Keywords:

Disturbance , Biological cementation , Calcit , Cohesion , Friction angle