METHOD OF SCREW SOUND PROBING IN ARRAY IN THE PROCESS OF AUGER DRILLING AND DEVICE FOR ITS IMPLEMENTATION

摘要

1. The method of testing soils in the array, including determining the shear resistance by the value of the moment of rotation of the spiral probe embedded in the soil without its axial movement, characterized in that in order to improve the accuracy of research, simplify the test process and ensure the continuity of the information received within the entire studied interval, determination of shear resistance is carried out due to the continuous movement of the spiral probe, with a speed limited to the step size of the leader spiral beyond one revolution of the screw column, while the shear resistance value is determined by the value of the axial force created by the first intermediate section with the pitch of the blade greater than the pitch of the leader blade. 2. The test method in the array according to claim 1, characterized in that the friction force of the cut soil against the soil is measured when the cut soil is moved to its previous position by the second intermediate section with a pitch of the blade equal to the pitch of the leader blade. A device for testing soils in an array, comprising a spiral probe rigidly connected to a screw column, characterized in that the spiral probe is made of two parts along the length, the leader blade and the transporting screw column, and is also equipped with two additional intermediate sections mounted on the hollow a sleeve with the possibility of relative axial movement and rigidly connected with the force sensors, the signals from which are fed via cable to the information collection unit, while the spiral blade of the first intermediate internal section formed with an angle of inclination greater than the angle of inclination of the leader helical blade, and spiral lo