NO20020934L - Brick block and retaining wall formed by such blocks - Google Patents

Abstract

A retaining wall consists of wall blocks (1) forming tiers on top of one another, so that the blocks in each tier are displaced laterally relative to the blocks in over-lying and under-lying tiers a distance comprising half the length of a wall block, said wall blocks comprising a front surface (4) and a rear surface (5), a top surface (2) and a bottom surface (3) spaced apart from one another a distance which determines the thickness of the block (1), first and second end surfaces (6, 7), at least one recess (16, 17) provided in the block (1), said recess extending upwards into the block from the bottom surface (3). The recess has a rear wall (16a, 17a), a recess ceiling (17e), an outer side wall (16b, 17b), and an inner side wall (16c, 17c). At least one pin aperture (39, 39', 43, 43') extends into at least all the blocks beneath the top tier of blocks at right angle to the top surface of the blocks, said pin apertures being located such that its centre line (C) extends through the region of a rear outer corner (29, 19) of said recess or through a point at a distance from said corner in a direction towards the rear side of the block, which distance is not greater than the extension of the pin aperture in the said direction, and that in all the tiers of wall blocks, except of the blocks in the top tier a pin is inserted in said pin aperture, a portion of the pin extending beyond the top surface (2) of the wall block, said projecting pin portion lying flush against the rear wall of a wall block of an over-lying tier of wall blocks.