Patent ID: 7585134

Claim:
A method of construction of a reinforced-concrete column in a soil pit, the method comprising: manufacturing of the column reinforcing cage with inserts, and concreting in a non-removable casing in a project position in a single- or multi-slit pit with the column reinforcing cage made monolithic, wherein: the column reinforcing cage has an upper bearing part and a lower foundation part; the soil pit is made with sizes along axis Y taken with a proviso that A B i>A K i+ 2(ε γ+ α γ+ β γ ) and along axis X taken with a proviso that B B i>B K i+ 2(ε χ+ α χ+ β χ ), where Y—axis passing through a geometric center of a cross-section of the lower foundation part of the column reinforcing cage; X—axis passing through the geometric center of the cross-section of the lower foundation part of the column reinforcing cage perpendicular to the axis Y; A K i—basic sizes of branches of the lower foundation part of the column reinforcing cage along the axis Y; B K i—basic sizes of the branches of the lower foundation part of the column reinforcing cage along the axis X; A B i—basic sizes of corresponding pit slits along the axis Y; B B i—basic sizes of pit slits along the axis X; K —index of a size related to the column reinforcing cage; B —index of a size related to the pit slits; i—size index; ε γ and ε χ —components of eccentricity along the axes Y and X, respectively, of projection of a geometric center of the column reinforcing cage with respect to projection of center of masses of the column reinforcing cage in a top plane of the column reinforcing cage; α γ and α χ —maximum deviations of the soil pit from a vertical along the axes Y and X, respectively; β γ and β χ —deviations of geometric center of a cross-section of the soil pit in a plane along the axes Y and X, respectively, in the top plane of the column reinforcing cage, and wherein: the column reinforcing cage is placed vertically into the soil pit with a gap from a bottom of the soil pit, the upper bearing part is vertically centered with compensation for eccentricity and fixed from horizontal displacements, the lower foundation part of the column reinforcing cage is made monolithic from bottom to top with concrete, and an inner part of the non-removable casing with a closed-type contour is made monolithic with the concrete in the upper bearing part of the column reinforcing cage.