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Lateral earth pressure
About: Lateral earth pressure is a research topic. Over the lifetime, 5334 publications have been published within this topic receiving 62552 citations.
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16 Mar 2007
TL;DR: Chapter 1.
Abstract: Chapter 1. Properties of Soil. Chapter 2. Elasticity and Plasticity. Chapter 3. Stresses in Soil. Chapter 4. Consolidation. Chapter 5. Shear Strength of Soil. Chapter 6. Shallow Foundations. Chapter 7. Lateral Earth Pressure and Retaining Walls. Chapter 8. Piles and Pile Groups.
272 citations
TL;DR: In this article, the construction and surcharge loading response of four full-scale reinforced-soil segmental retaining walls is simulated using the program FLAC, and the numerical model implementation is described and constitutive models for the component materials (i.e., modular block facing units, backfill and four different reinforcement materials) are presented.
Abstract: The construction and surcharge loading response of four full-scale reinforced-soil segmental retaining walls is simulated using the program FLAC. The numerical model implementation is described and constitutive models for the component materials (i.e., modular block facing units, backfill, and four different reinforcement materials) are presented. The influence of backfill compaction and reinforcement type on end-of-construction and surcharge loading response is investigated. Predicted response features of each test wall are compared against measured boundary loads, wall displacements, and reinforcement strain values. Physical test measurements are unique in the literature because they include a careful estimate of the reliability of measured data. Predictions capture important qualitative features of each of the four walls and in many instances the quantitative predictions are within measurement accuracy. Where predictions are poor, explanations are provided. The comprehensive and high quality physical data reported in this paper and the lessons learned by the writers are of value to researchers engaged in the development of numerical models to extend the limited available database of physical data for reinforced soil wall response.
258 citations
TL;DR: For relatively shallow anchors in undisturbed dense and stiff soils, general shear along a convex, torical slip surface is observed as mentioned in this paper, which degenerates into a cylindrical surface for remolded, compressible and semiliquid soils.
Abstract: Soil resistance to withdrawal is found to be greatly affected by failure patterns. For relatively shallow anchors in undisturbed dense and stiff soils general shear along a convex, torical slip surface is observed. For remolded, compressible and semiliquid soils this pattern degenerates into a cylindrical surface. For deeply embedded objects punching shear failure is observed. In semiliquid soils this is accompanied by flow of soil into the vacuum created by withdrawal of the object. Theoretical analysis considering soil to be rigid-plastic near the surface and elastic-plastic at greater depth appears to give reasonable estimates in soft and loose soils; it underestimates the breakout resistance in stiff and dense soils. The least understood components of breakout force are those attributed to soil suction and adhesion between the object and surrounding soil. It appears that the problem of soil suction can be handled as a problem of pore-pressure difference on two sides of the pulled object.
246 citations
TL;DR: In this paper, a computer method is developed for failure analysis of plane problems in soil mechanics, assuming that the soil obeys the Mohr-Coulomb failure criterion and all stresses vary linearly within each element of a triangular mesh which spans the zone under investigation.
Abstract: A computer method is developed for failure analysis of plane problems in soil mechanics. It is assumed that the soil obeys the Mohr-Coulomb failure criterion and that all stresses vary linearly within each element of a triangular mesh which spans the zone under investigation. An optimal statically admissible stress field corresponding to a lower bound solution is isolated by the method of linear programming. The method has been applied to several bearing capacity and earth pressure problems.
245 citations
TL;DR: In this paper, the stability of tunnel walls and tunnels has been investigated and it has been shown that a cohesive soil flows through a vertical opening when the total overburden pressure exceeds about six times the undrained shear strength of the soil at the level of the opening.
Abstract: The stability of clay at vertical openings in walls and tunnels has been investigated. Laboratory experiments have shown that a cohesive soil flows through a vertical opening when the total overburden pressure exceeds about six times the undrained shear strength of the soil at the level of the opening. Field data collected from tunnels and pipes constructed in soft clays show that no difficulties have been encountered with soil flowing through openings in the tunnel lining or through the tunnel front when the net overburden pressure has been less than six times the undrained shear strength of the soil. Field data indicate, furthermore, that the force required to push a tunnel shield forward into a cohesive soil corresponds to approximately the sum of the overburden pressure and six times the undrained shear strength of the soil.
237 citations