This research deals with the laboratory study of the reinforcement system of sand columns using the new method of spiked micropiles. Sand columns are used as a method to improve different types of soil, especially weak soils. In general, sand columns increase the bearing capacity and reaction modulus of the bed, reduce settlement, and improve soil resistance against liquefaction. Despite this, sand columns, except for the RAP and GAP methods, are not suitable for bearing the breaking forces on the foundation of the building caused by the lateral forces of earthquakes or strong winds. Disadvantages such as the lack of stability of the pit wall, limitations in the placement of components and general rupture in some types of soil in the above two methods have led to the invention and use of a new method of rein forcing sand columns with barbed micro micropiles. During the process of tensile strengthening of sand columns, after hammering the spiked micro-pillar into the sand column and injecting cement slurry and connecting the foundation to the upper metal plate of the micro-pillar, it is possible to strengthen the cemented sand columns against the breaking forces. During this research, with laboratory modeling of cement sand columns reinforced with barbed micropiles, the effect of barbed shape and size parameters on the elongation capacity, tensile modulus and adhesion strength (αbond) of plain and barbed micropiles were studied. On this basis, the number of 8 laboratory samples of reinforced cemented sand column with a diameter of 30 cm and a height of 75 cm with two spikes installed in the middle of different types of belts, shields, spoons and cans and 4 different sizes of shields grade 60, 50, 40, 30 were made and subjected to the loading test of pulling out a micro-candle from inside the cemented sand column. Also, in order to compare the spiked micropiles with the normal micropiles, an experiment was also performed on the normal micro-candles. The strain-control