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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31 Oct 2005
TL;DR: In this paper, the authors examined earth pressure acting on an embedded footing and its effects on pile forces, based on both liquefaction and non-liquefaction tests using a large-scale laminar shear box.
Abstract: This paper examines earth pressure acting on an embedded footing and its effects on pile forces, based on both liquefaction and non-liquefaction tests using a large-scale laminar shear box. The following conclusions are drawn: (1) The total earth pressure defined by the difference in earth pressure between passive and active sides in the non-liquefaction tests varies significantly depending on its phase relative to the soil inertia around the embedded footing as well as on the relative displacement between soil and footing; (2) The total earth pressure in the liquefaction test, by contrast, depends mainly on the relative displacement because the soil inertia gets small in liquefied soil; (3) The total earth pressure in the non-liquefaction tests tends to be out of phase by 180 degrees with the superstructure inertia, reducing the shear force and bending moment at the pile head; and (4) The total earth pressure in the liquefaction tests tends to be in phase with the superstructure inertia, making the bending moment at the pile head large. A method for estimating the total earth pressure considering its phase relative to the superstructure inertia as well as the effects of soil inertia has been proposed. The proposed method gives a reasonable explanation of the difference in earth pressure between different tests.
22 citations
TL;DR: In this paper, the behavior of a single pile placed either at crest or at different distances from crest on slope is evaluated, where the static lateral load was applied in a direction towards the downward slope.
Abstract: Structures such as jetties, transmission towers, elevated highways and various industrial units are often supported by pile foundation on natural or man-made soil slope. The piles on slopes are subjected to lateral load from the super structure, earth pressure from the unstable soil, wave and current actions in case of marine structures, etc. The behaviour of a pile on sloping ground under lateral load is different from that on a horizontal ground. The aim of this paper is to experimentally and numerically evaluate the behaviour of a single pile in sloping clay layer subjected to lateral load. 1 g model tests are performed in laboratory test tank on instrumented pile embedded in clayey bed with varying slopes and shear strength. The behaviour of a single pile placed either at crest or at different distances from crest on slope is evaluated. Static lateral load was applied in a direction towards the downward slope. Numerical study comprise of 3-D finite element analysis using PLAXIS code. The input parameters used for the analysis were validated by comparing the PLAXIS results with the experimental result. A detailed parametric study was then carried out by varying the clay shear strength and the slope angle. Based on the analysis, non-dimensional design charts are prepared for lateral capacity in piles on sloping ground. A worked example is included demonstrating the use of the design charts for pile on clay slope subjected to lateral loading.
22 citations
TL;DR: In this article, the authors investigated the ultimate limit state (ULS) of continuous and discontinuous pile rows in a frictional soil slope by performing 2D and 3D numerical analyses, respectively.
22 citations
TL;DR: In this paper, the authors studied the face stability of EBP shield tunnels in dry granular soils considering the influence of the dynamic excavation process and found that the shield tunnel face stability was not affected by dynamic excavation.
Abstract: The aim of this paper is to study the face stability of earth pressure balance (EPB) shield tunnels in dry granular soils considering the influence of the dynamic excavation process. The an...
22 citations