STORM-WATER INLET Russian patent published in 2000 - IPC

FIELD: construction engineering. SUBSTANCE: storm-water inlet has body, supporting frame, and water inlet grate. Supporting frame beyond body of pit rests on surrounding base ground and has recesses in its lower surface. Internal surface of recesses takes the form of truncated cone which is turned by its large base towards ground and its angle of incline with respect to lower base is equal to 25-65 deg. Recesses are arranged in plan discretely over concentric closed lines with their contour corresponding to external contour of lower surface of frame at distance l between axes of lines and at distance f between axes of adjacent recesses which are determined according to following relations: l = (1/10-1/5)r and f = (1/10-1/5)r, where r - minimal distance between external and internal contours of frame in plane of its lower surface. Height h of recesses is not larger than height of half of minimal height of supporting frame. Application of aforesaid embodiment of storm-water inlet allows for improvement of collaborative work of system "supporting frame - ground base". Also improved are stability and shear characteristics. EFFECT: higher efficiency. 1 cl, 4 dwg