Topic
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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TL;DR: In this article, a numerical investigation was carried out to evaluate the effect of wall movement modes on static active earth pressure, where the conventional linkage elements have been idealized suitably to avoid separation between the wall and the soil during the active movement of the wall.
59 citations
TL;DR: In this paper, a detailed numerical analysis is presented for the response of a caisson-type quay wall from Rokko Island during the 1995 Kobe earthquake using the Pastor-Zienkiewicz elastoplastic constitutive model.
Abstract: Motivated by the need to explain the large displacement and rotation that numerous caisson-type quay walls suffered in the port of Kobe during the devastating 1995 earthquake, a detailed numerical analysis is presented for the response of such a wall from Rokko Island. Utilising the Pastor–Zienkiewicz elastoplastic constitutive model, an effective stress dynamic analysis is performed using as input the accelerogram recorded 32 m below the ground surface in the nearby Port Island. The evolution during shaking of lateral displacements, plastic strains and pore water pressures sheds some light on the complex interplay of several simultaneously occurring phenomena: the development of oscillatory inertia forces on the wall, in phase or out of phase with the backfill soil and water pressures; the simple-shear seismic deformation of the soil and the ensuing initial development of positive excess pore water pressures in the backfill and the foundation soil; the extensional deformation developing in the ‘active we...
59 citations
TL;DR: In this paper, a laboratory soil nail pullout box with full instrumentation and a special pressure grouting was introduced to evaluate the interface shear strength between a soil nail and the surrounding soil, which is required in the design analysis and safety assessment of a soil nailed structure such as a slope, retaining wall or excavation.
Abstract: The interface shear strength between a soil nail and the surrounding soil is required in the design analysis and safety assessment of a soil nailed structure, such as a slope, retaining wall or excavation. It has been found that a number of factors may influence the interface shear strength, such as the normal stress, soil properties, soil nail surface roughness, degree of saturation and grouting pressure. Some initial results from field pullout tests on soil nails grouted under pressure have indicated that the grouting pressure contributes to the pullout resistance. Pressure grouting is a cost-effective method for increasing the soil nail pullout resistance, thus improving the performance of the nailed structure. Studies on the soil nail failure mechanisms and quantitative data from tests investigating how grouting pressure influences the pullout resistance are, however, very limited. First, this paper introduces a laboratory soil nail pullout box with full instrumentation and a special pressure grouting...
59 citations
TL;DR: In this article, the results of numerical simulation of three full-scale geosynthetic-reinforced soil walls that were seismically loaded by a shaking table were presented.
58 citations
TL;DR: In this paper, one-g shake table experiments were conducted to explore the response of single piles due to liquefaction-induced lateral soil flow, where piles were embedded in saturated Medium Relative Density (Dr) sand strata 1.7-5.0 m in thickness.
Abstract: One-g shake-table experiments are conducted to explore the response of single piles due to liquefaction-induced lateral soil flow. The piles are embedded in saturated Medium Relative Density (Dr) sand strata 1.7–5.0 m in thickness. Peak lateral pile displacements and bending moments are recorded and analyzed by uniform and triangular pressure distributions. On this basis, the observed levels of pile bending moment upon liquefaction suggest a hydrostatic lateral pressure approximately equal to that due to the total overburden stress. Using the experimental data, comparisons with current recommendations are made, and the Showa Bridge case history is briefly assessed.
58 citations