Improvement of bearing capacity for shallow foundation supporting inclined load using Geomesh reinforcement

摘要

© 2020 Alpha Publishers. All rights reserved.Tests were performed on several models of footing of a square shape on sandy soil sand to illustrate the load-settlement relations of soil reinforced with geomesh materials. The parameters studied in this research are: the depth of single geomesh layer as a ratio to the footing width (u/B), distance of vertical between two layers of geomesh materials as a ratio to the width footing (z/B). Also, the geo-mesh thickness material is in relation to the type of geo-mesh footing underneath. The results Optimum ratio of depth (u/B) decreases with inclination decrease angle of load of application and optimum value of ratio of the depth is u/B =0.25, giving the higher capacity of bearing value. The increases in the value of inclination angle affects the increases in the value of the optimum ratio of depth of single layer of geomesh and the rate of bearing improvement capacity declined along changing the depth value of ratio from optimum value. For a ratio depth (u/B=1.0), no improvement can be noticed in all tests of model. Rate of capacity improvement bearing can be estimated depending on the optimum ratio of depth by simple equations. The optimum spacing of vertical among layers is (z/B= 0.5), which gives the maximum capacity of bearing for all test models and the rate of bearing improvement capacity percentage enhances along inclination increasing of the angle value. Moreover, when the vertical spacing is (z/B= 1.5), improvement in the footing capacity of bearing was not noticed for different load inclination angles. In general, geo-mesh thickness increase of layer results in increase the footing capacity bearing. Enhancement was not noticed at thickness of geomesh reinforcement (t = 0.5 mm).