Methods of Calculating the Basis Reinforced with Horizontal Elements

The destruction of the reinforced soil base by horizontal flexible elements can be represented in the form of three schemes: due to the soil displacement between the base of the foundation and the first layer of the reinforcing element, from the sliding of the reinforcing elements, and their rupture. Mohr’s circle will touch the envelope of limit states at a specific stress ratio if a two-dimensional sample of loose soil is subjected to comprehensive compression. If the reinforcement is introduced into the sample in the direction of tensile deformations and the pressure is gradually increased, then due to the friction of the soil on the surface of the reinforcement, further deformations of the sample in this direction will stop and will be absent until the frictional forces are exceeded and slippage does not occur. The studies carried out in this work show that, in the absence of slippage, for non-cohesive soils, the effective position of the reinforcement practically does not depend on its strength. The comparison of the obtained dependencies with the calculations of the stress-strain state of the samples leads to the conclusion that the maximum strength occurs when the direction of reinforcement insertion coincides with the direction of action of the main tensile deformations. This fact makes it possible to determine the optimal scheme of reinforcement of any structure based on the data of the stress-strain state calculation.