Numerical Modelling of Lateral Deformation of the Cantilever Retaining Wall in Expansive Clays

Sharma, Santosh Kumar; Prabhu, Nagendra; Naveen, Y.; Bhuvaneshwari, S.

doi:10.1007/978-981-15-3662-5_19

Cited by 2 publications

(2 citation statements)

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“…The loading F I G U R E 1 Typical failure mechanisms of anchored structures include anchor failures (center, E. 1997-1, 2004, figure 9.5) as a consequence of, for example, corroded anchor strands (left) and loss of overall stability (right, E. 1997-1, 2004, figure 9.6) F I G U R E 2 Concept for large-scale deformation monitoring of retaining walls: fast data acquisition with mobile mapping (left), producing high dense point clouds (right) for efficient and automatic data processing behavior of the underground is at least equally important for a precise estimate. The strata, the constitutive model, and its soil parameters are influencing factors in this context (Sharma, Prabhu, Naveen, & Bhuvaneshwari, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Processing of mobile laser scanning data for large‐scale deformation monitoring of anchored retaining structures along highways

Kalenjuk

Lienhart

Rebhan

2021

Computer aided Civil Eng

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In times of steadily increasing traffic loads and extreme weather phenomena, the safe maintenance of infrastructure poses a difficult challenge to operators, especially when a vast number of aged structures exists and fundamental data is missing. This paper addresses the demand for cost-efficient deformation monitoring of anchored retaining structures along public roads. The principal idea is to process laser scans of a motor-vehicle-based mobile mapping system with a high degree of automation. Starting with scene interpretation, our processing pipeline extracts the retaining wall from the rest of the point cloud, segments the anchored elements, and computes their deformations. This method requires, however, correcting for positioning errors to obtain accurate results. We exploit the high data redundancy of road patches and line markings for alignment. Due to the high degree of automation, computations scale to large numbers of point clouds and run in a repeatable manner. Even when traveling along highways with up to 100 km/h, we achieve repeatable accuracies for tilting and lateral displacements that compare to traditional, labor-intense surveying methods.This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Section: Introductionmentioning

confidence: 99%

“…The loading behavior of the underground is at least equally important for a precise estimate. The strata, the constitutive model, and its soil parameters are influencing factors in this context (Sharma, Prabhu, Naveen, & Bhuvaneshwari, 2020).…”

Section: Introductionmentioning

confidence: 99%

Processing of mobile laser scanning data for large‐scale deformation monitoring of anchored retaining structures along highways

Kalenjuk

Lienhart

Rebhan

2021

Computer aided Civil Eng

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Experimental research of a flexible retaining wall model in laboratory conditions

Bryksin

2024

jour

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Introduction. The Russian standards determine the lateral earth pressure at the failure surface stage, which corresponds to the Coulomb’s theory. In this case, the limit values of earth pressure on the flexible wall remain independent from the nature and intensity of deformation of the retaining structure. Therefore, computational methods for retaining walls are to be improved considering the above-mentioned factors.Aim. To obtain experimental data in order to develop a computational method for determination of the active earth pressure on retaining structures depending on their deformations.Materials and methods. Experimental tests were carried out by physical simulation for various models of flexible retaining walls using a purpose-designed laboratory test bench. Medium sand was used as a model backfill soil; its physical properties were determined under laboratory conditions in accordance with State Standard 5180-2015.Results. The tests provided data on the character of backfill soil deformations within the wedge of failure for different kinematic conditions of the retaining wall model and, accordingly, justified the application of inclined block phenomenological model, used to develop a computational method for determining the active earth pressure on retaining walls.Conclusions. Experimental tests indicate the correlation between deformation nature of the backfill soil and accepted conditions of soil operation during the development of engineering method for determining the lateral earth pressure. The obtained experimental data can be used in adoption and verification of the suggested computational method that enables shoring of excavations to be designed more reasonably in mutual conformity with the actual earth pressure diagrams.

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Numerical Modelling of Lateral Deformation of the Cantilever Retaining Wall in Expansive Clays

Cited by 2 publications

References 4 publications

Processing of mobile laser scanning data for large‐scale deformation monitoring of anchored retaining structures along highways

Processing of mobile laser scanning data for large‐scale deformation monitoring of anchored retaining structures along highways

Experimental research of a flexible retaining wall model in laboratory conditions

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