Active thrust on retaining walls of narrow backfill width

Greco, Venanzio Raffaele

doi:10.1016/j.compgeo.2012.12.007

Cited by 63 publications

(25 citation statements)

References 19 publications

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“…It is well worth pointing out that, in theoretical analyses, a reasonable assumption for the slip surface is fundamental to the study of active earth pressure. In this regard, many types of the planar slip surface have been proposed so far, such as lines (Coulomb and Rankine theory), segment lines [5,19], circles [20], catenary lines [21], and curves composed of a line and a logarithmic spiral [22,23]. Nevertheless, little attention in previous researches has been paid to the change of the slip surface, with which the narrow soil behind a retaining wall varies with the width of the backfill.…”

Section: Advances In Civil Engineeringmentioning

confidence: 99%

“…ese studies found that the reason for the reduction of the lateral earth pressure acting on a retaining wall with narrow backfills is mostly due to soil arching effects. Additionally, taking the advantage of simplicity of the formulation, analytical solutions also have been derived for retaining walls with narrow backfills under the assumption that failure surfaces are planar and segmental [5,19]. All these methods are useful for assessing the earth pressure for retaining walls with narrow backfills though with various degrees of approximation.…”

Section: Introductionmentioning

confidence: 99%

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Simplified Method for Calculating the Active Earth Pressure on Retaining Walls of Narrow Backfill Width Based on DEM Analysis

Yang

Deng

2019

Advances in Civil Engineering

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Spaces for backfills are often constrained and narrowed when retaining walls must be built close to existing stable walls in urban areas or near rock faces in mountainous areas. e discrete element method (DEM), using Particle Flow Code (PFC-2D) software, was employed to simulate the behavior of cohesionless soil with narrow width behind a rigid retaining wall when the wall translation moved away from the soils. e simulations focused on the failure model of the soil when the movement of the wall reaches the value where active earth pressure occurs, and the shape of the sliding surface was captured. en, based on the limit equilibrium method with the obtained slip surfaces in PFC-2D, a simplified analytical method is presented to obtain a solution of the active earth pressure acting on rigid retaining with narrow backfill width. e point of application of the active earth pressure is also obtained. e calculated values agree well with those from physical tests in the previous literature. Furthermore, the effects of the width of the backfill, internal friction angle of soil, and wall-soil friction angle on the distribution of active earth pressure are discussed.

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Section: Advances In Civil Engineeringmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simplified Method for Calculating the Active Earth Pressure on Retaining Walls of Narrow Backfill Width Based on DEM Analysis

Yang

Deng

2019

Advances in Civil Engineering

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“…Beside widely known theories like Rankine (1857) and Coulomb (1776) there are various study considering different methods for lateral earth pressure distribution. Some of which are limit equilibrium method (Greco, 2013;Leśniewska & Mróz, 2000;Morisson & Ebeling, 1995), limit analysis method (Chen & Liu, 1990;Shiau, Augarde, Lyamin, & Sloan, 2009;Yang, 2007), numerical methods (Chugh & Labuz, 2011;Lee, Chae, Kim, Jo, & Park, 2015) and experimental methods (Chevalier, Combe, & Villard, n.d.;Tsagareli, 1965). Contrary to the Coulomb's and Rankine's methods, in many studies it is stated that active earth pressure distribution is nonlinear due to the arching effect (Ertuğrul, 2013;Handy, 1985;Nadukuru & Michalowski, 2012).…”

Section: Introductionmentioning

confidence: 99%

Farklı İstinat Duvar Tiplerinde Aktif Toprak Basınçlarının Sayısal Analizi

Kamiloğlu

Şadoğlu

Yılmaz

2019

Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Lateral earth pressure distribution is crucial in retaining structure design. In most studies, active earth pressure distribution acting on the retaining structure is supposed as nonlinear. Despite there are many studies about earth pressure distribution, there are limited number of studies considering effect of wall geometry on lateral earth pressure distribution. In this study, it is aimed to examine effect of wall geometry on active failure surfaces and lateral earth pressure distribution. Thus, active failure surface and active lateral earth pressure distribution of various types of retaining wall were examined numerically. Within scope of the analysis a gravity retaining wall with various inclinations, inverted T type cantilever retaining wall and gravity wall with various heel lengths were considered. The effect of wall inclination and heel length on failure mechanism and lateral earth pressure distribution was studied. As a result of the study it is shown that lateral earth pressure distribution varies based on wall type. Additionally, short heel and long heel cases are effective on earth pressure distribution. ÖzDayanma yapılarının tasarımında yatay toprak basıncı dağılımı önem arz etmektedir. Birçok çalışmada, dayanma yapısına etkiyen aktif toprak basınç dağılımı nonlineer olarak kabul edilir. Toprak basınç dağılışı ile ilgili çok sayıda çalışma olmasına karşın, Duvar boyutlarının yatay toprak basıncı dağılışı üzerine etkilerini irdeleyen az sayıda çalışma bulunmaktadır. Bu çalışmada, duvar şeklinin aktif yanal toprak basınç dağılımı ve aktif kırılma yüzeyleri üzerine etkisi incelenmiştir. Bu nedenle çeşitli tip dayanma duvarlarına gelen yanal toprak basınç dağılışları ve oluşturdukları kırılma yüzeyleri numerik olarak irdelenmiştir. Yapılan çalışma kapsamında, çeşitli eğimlerdeki ağırlık tipi dayanma duvarları, farklı topuk uzunlukları ve eğime sahip ters T biçimli dayanma duvarları göz önüne alınmıştır. Yapılan çalışma sonucunda yanal toprak basınç dağılışının duvar tipine göre değiştiği belirlenmiştir. Buna ek olarak duvar eğimi ve topuk uzunluğunun kırılma yüzeyleri ve yanal toprak basınç dağılışı üzerinde etkili olduğu görülmüştür.Anahtar Kelimeler: kırılma yüzeyi yatay toprak basınç dağılışı, uzun topuk, kısa topuk

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“…Fan and Fang present a numerical study on the behaviour of active earth pressures behind a rigid retaining wall with limited backfill space of various geometries [8]. On the basis of the limit equilibrium method with planar slip surfaces, Greco presents an analytical method to obtain a solution for the active thrust exerted by backfill of narrow width on gravity retaining walls [9]. Greco presents a limit equilibrium method, for calculating the active thrust on fascia retaining walls, where common methods cannot be used owing to the narrowness of the backfill [10].…”

Section: Introductionmentioning

confidence: 99%

A Computational Method of Active Earth Pressure from Finite Soil Body

Tang

Chen

2018

Mathematical Problems in Engineering

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Nowadays, Coulomb and Rankine earth pressure theories have been widely applied to solve the earth pressure on a retaining structure. However, both of the theories established on the basis of the semi-infinite space assumption are not suitable for calculating the earth pressure from finite soil body. Therefore, this paper focuses on a theoretical study about the active earth pressure from finite soil body. Firstly, a common calculation model of finite soil body is established according to the results of previous studies. And then, based on Coulomb’s theory and the wedge element method, an analytical solution of the unit active earth pressure from finite soil body is deduced without an assumption of its linear distribution in advance. Meanwhile, formulas of the active earth pressure strength coefficient and the application point of the resultant force are also deduced. Finally, the influence of parameters such as the frictional angle between the retaining wall back and backfill, slope angle of backfill, dip angle of the retaining wall back, the frictional angle between backfill and rock slope, and uniformly applied load on the backfill surface on the distribution of the unit active earth pressure and the application point of the resultant force is analyzed in detail.

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Active thrust on retaining walls of narrow backfill width

Cited by 63 publications

References 19 publications

Simplified Method for Calculating the Active Earth Pressure on Retaining Walls of Narrow Backfill Width Based on DEM Analysis

Simplified Method for Calculating the Active Earth Pressure on Retaining Walls of Narrow Backfill Width Based on DEM Analysis

Farklı İstinat Duvar Tiplerinde Aktif Toprak Basınçlarının Sayısal Analizi

A Computational Method of Active Earth Pressure from Finite Soil Body

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