SUPPORTING STRUCTURE, PREFABRICATED STRUCTURE AND METHOD FOR INSTALLATION OF PREFABRICATED STRUCTURE Russian patent published in 1995 - IPC

FIELD: industrial and civil engineering. SUBSTANCE: supporting structure, mainly, of building, structure, prefabricated airfield or roadway pavement is made with anchor member located on its base on the side of supporting surface. Anchor member has curved sections in plan which are formed with broken lines or curves of constant or varying curvature within one section of curvature and made trapezoidal in cross-section. Side surface of one of the pair of sections of anchor member located over longitudinal axis of base has inclination from nearest ends of base to center or centers of its curvature, to center or centers of curvature of section enveloping line, and of the other, to center or centers of its curvature or curvature of section enveloping line to nearest base ends. In so doing, adjacent side surfaces of two sections having reversed curvatures and located over base longitudinal axis are displaced along it relative to each other through value exceeding the length of base of trapezium of their cross-section to form open semicircles. Besides, sections of anchor member with their reversed curvatures or curvature of enveloping line may be located over base longitudinal axis, and smoothly conjugated with each other. Curvature of section or curvature of enveloping line of section with inclination of side surface from center or centers of its curvature exceeds the curvature of section or curvature of enveloping line of section whose side surface is inclined to center or centers of its curvature. Supporting structure may have two protrusions in form of teeth found on the side of supporting surface of base, at its side faces and curved in plan sections of anchor member protrude in their middle part beyond the contour of base to form sockets for receiving respective teeth of other supporting structures. EFFECT: increased bearing capacity and stability of structures on soft grounds, longer service life of structures with alternating working loads, reduced specific consumption of materials and cut down labor input, both, in making the structure and in their operation. 16 cl, 9 dwg