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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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Journal ArticleDOI
TL;DR: In this article, a log-spiral failure mechanism was developed by deriving a first-order differential equation and subsequently solved using a numerical approach, accounting for varying soil strengths, interface friction and wall batters.
Abstract: The distribution of active earth pressures behind retaining structures is typically inferred from simplified Rankine or Coulomb analyses, both of which are triangular in shape and assume a planar slip surface. However, various experiments and numerical models have demonstrated an earth pressure distribution that is non-linear in shape, typically attributed to a phenomenon called ‘soil arching’. Existing analytical solutions have typically evaluated arching with planar slip surfaces; however, slip surfaces that form behind retaining structures are often curvilinear, tending to follow a log-spiral shape, particularly when considering wall batter or interface friction between the backfill and wall. In this letter, the arching effect is considered using a log-spiral failure mechanism that has been developed by deriving a first-order differential equation and subsequently solved using a numerical approach. A series of charts are presented accounting for varying soil strengths, interface friction and wall batters.

34 citations

Patent
25 May 2005
TL;DR: In this paper, a large shield driving simulation test platform is presented, which includes the components of drawbar, soil box, rear back, main top device, several bags set in the soil box and pore pressure sensors which are connected with monitoring system, hydraulic system, control system and sealing device, etc.
Abstract: The present invention relates to a large shield driving simulation test platform. Its simulation shield driving machine adopts phi 1800 mm. Said shield driving simulation test platform also includes the components of drawbar, soil box, rear back, main top device, several bags set in the soil box, soil pressure sensors and pore pressure sensors which are set in the soil box and connected with monitoring system, hydraulic system, control system and sealing device, etc.

34 citations

Journal ArticleDOI
TL;DR: In this article, a new pseudo-static method was developed to evaluate the seismic stability of retaining walls situated on slope, and the results showed that the stability of the wall against bearing capacity failure may be greatly overestimated when the inertia of soil mass is not taken into account.
Abstract: Many soil retaining walls, which were used to stabilize highway embankments constructed on hillside, were severely damaged during the major earthquake (Chi-Chi earthquake, M\dL = 7.3) on September 21, 1999 in Taiwan. We investigated two typical cases of soil retaining wall damage using survey, soil borings and soil tests. To this end we developed a new pseudo-static method to evaluate the seismic stability of retaining walls situated on slope. Sliding failure along the wall base and bearing capacity failure in the foundation slope were considered in the new pseudo-static method. Results of the analysis showed that seismic stability of the wall against bearing capacity failure may be greatly overestimated when the inertia of soil mass is not taken into account. The analytical results also showed that sliding failure along the wall base occurs prior to the bearing capacity failure of the wall situated on a gentle slope at Site 1. The opposite is true for the wall situated on a steep slope at Site 2. For soil retaining walls constructed on slope, sliding failure of the wall may occur under small input horizontal ground acceleration when the passive resistance in front of the wall is not effectively mobilized. This highlights the importance of improving the strength of backfilled soils in the passive zone when constructing soil retaining walls on slope. The results obtained in the present study also suggest a modification of the current design considerations for soil retaining walls situated on slope.

34 citations

Journal ArticleDOI
TL;DR: In this paper, a small scale centrifuge physical model tests were conducted to investigate soil interaction (SCI) considering the height and density of soil above the culvert and the geometry of the box culvert.

34 citations

Journal ArticleDOI
TL;DR: In this article, an analytical solution has also been proposed for the arbitrary mode of wall movement, and the soil mass behind the wall can be homogeneous or layered The mobilized internal friction angle of the soil and the interface friction angle change with the movement of the wall; this has been widely accepted However, the development is not simultaneous.
Abstract: The slip line method has been extended to consider the tangential stress and arbitrary magnitude of wall movement An analytical solution has also been proposed for the arbitrary mode of wall movement, and the soil mass behind the wall can be homogeneous or layered The mobilized internal friction angle of the soil and the soil-wall interface friction angle change with the movement of the wall; this has been widely accepted However, the development of them is not simultaneous The mobilized friction angles are used in the slip line method and the simplified slip line method to yield the nonlimit lateral earth pressure Results indicate that earth pressure decreases exponentially with increasing wall movement Comparisons of the calculated results with measured data and FEM results show that the present analytical method can provide good prediction of the lateral earth pressures and the limit wall movement equal to 03%H is appropriate in the calculation (where H is the excavation depth)

34 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023166
2022303
2021268
2020254
2019238
2018288