JUSTIFICATION OF GEOMETRIC PARAMETERS OF A BOREHOLE INKLINOMETER PROBE
In order to improve the efficiency and to expand the range of use of the inclinometric method for controlling the filling mass vertical displacements, the parameters of the borehole probe are justified when it is worked on. Taking into account the diameter of the casing pipe and the curvature of its elastic deflection, the geometric dimensions of the probe structural elements are estimated. The structural elements provide the probe free passage along the axis of the cased sub horizontal borehole. The height and width of the probe are determined as well as the height of the slide bearings in the probe base and the permissible free movement of the upper springs for its hold-down against the walls of the casing pipes are. The probe base (0.5 m) is selected for the predicted curvature of the casing pipe caused by the deflection of the filling mass. They provide the maximum accuracy and amount of detail of the determination of the filling mass settlement along the 40-100 m long borehole depth.