The invention relates to a technique of research of soil properties and can be used in the construction of the foundations of buildings, pylons, support of contact network, cell phone towers, poles temporary bridges, pipelines, jetties, sound barriers and other structures. The apparatus consists of an element for the introduction into the soil provided in the form of a screw piles, equipped with arms for screwing. One of the levers is connected with a device for measuring torque, which may be a limit force control unit. To study the soil at a great depth screw pile is equipped with additional segments. limit force control unit may consist of an outer and inner shells are connected by a spring, two rings mounted on opposite walls of the outer and inner shells and the mark on the inner housing, the appearance of which indicates reaching the limit force. To investigate the properties of dense soil levers for screwing screw piles may be made from reinforced and contain two rigidly interconnected and positioned at an angle relative to each other, strips of different lengths, connected by additional bar-jib, 5 ZP f-ly; 5 yl.
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