GRS — A New Era in Reinforced Soil Technology

Barrett, R K; Ruckman, A C

doi:10.1061/40909(228)15

Cited by 3 publications

(1 citation statement)

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“…It is expected that the geogrid-reinforced soil will be widely used in civil engineering as retaining or supporting structures because of its high strength, excellent ability against earthquake, suit for general earth foundation, easiness for construction and lower cost [1,2]. But the theoretical researches on the reinforcement mechanics need to be carried out essentially before the geogrid-reinforced soil is widely accepted to construct a baring structure [3].…”

Section: Introductionmentioning

confidence: 99%

Simulation of Unconfined Compression Tests of Geogrid-Reinforced Granular Soil

Cai

Liu³

et al. 2014

AMM

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In order to analysis of the mechanical properties of geogrid-reinforced granular soil, a simulation model of unconfined compression tests is proposed based on the laboratory tests conducted before by the author. This numerical method, after modified by the laboratory test data, is adopted to carry out a simulation of unconfined compression tests using large specimens of geogrid-reinforced granular soil. Each large specimen, with the diameter of 175cm and the height of 300cm, varies in reinforcement spacing of 30 cm, 37.5cm, 50 cm or 75 cm. For comparison, the same simulation test is also demonstrated for the granular soil without geogrid. A series of simulated compression stress-strain relationship curves are presented, on which a detail analysis is carried out. The following conclusions are obtained: (1) The geogrid-reinforced granular soil is a strain-hardening mass if the reinforcement spacing is less than about 50 cm. (2) While the reinforcement spacing is smaller enough, there is no sliding at the geogrid-soil interface and, therefore, the geogrid-reinforced granular soil may be taken as a composite material.

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Section: Introductionmentioning

confidence: 99%