Investigation of Induced Trench Method Using a Full Scale Test Embankment

Turan, Alper; Naggar, M. Hesham El; Dundas, Dave

doi:10.1007/s10706-012-9608-0

Cited by 22 publications

(7 citation statements)

References 15 publications

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“…The backfill soil, bedding soil and in-situ soil were modelled using the hyperbolic Duncan-Chang soil model (Duncan and Chang, 1970). This model was used because it is capable of simulating the behaviour of the soil around buried culverts with good accuracy, hence a more accurate representation to the problem could be achieved with this model (Dhar et al 2004;Kim and Yoo, 2005;Kang et al, 2007;Kang et al, 2008a, b;Kang et al, 2013a, b;Turan et al, 2013;Kang et al 2014;Katona, 2017). A linear elastic model was used to model the concrete pipe.…”

Section: Numerical Modelling Detailsmentioning

confidence: 99%

Economical design of buried concrete pipes subjected to UK standard traffic loading

Alzabeebee

Chapman

Faramarzi

2019

Proceedings of the Institution of Civil Engineers - Structures

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Section: Numerical Modelling Detailsmentioning

confidence: 99%

Economical design of buried concrete pipes subjected to UK standard traffic loading

Alzabeebee

Chapman

Faramarzi

2019

Proceedings of the Institution of Civil Engineers - Structures

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“…This model was used because it is capable of simulating the dependency of the soil stiffness on the stress level. Previous studies have shown that simulating the dependency of soil stiffness on the stress level produces more accurate results in soil-pipe interaction modelling [6,12,13,14]. A linear elastic model was used to model the pipe.…”

Section: Numerical Modelling Detailsmentioning

confidence: 99%

Numerical Investigation of the Bedding Factor of Concrete Pipes under Deep Soil Fill

Alzabeebee¹,

Chapman²,

Faramarzi³

2017

Proceedings of the 2nd World Congress on Civil, Structural, and Environmental Engineering

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The Indirect Design Method is often used to design buried concrete pipes. This method is based on linking the required strength of the buried concrete pipe to the laboratory strength of the pipe by using an empirical factor called the bedding factor. Hence, the bedding factor is key in the Indirect Design Method. However, a thorough review of the literature showed that the bedding factor has not received signification attention in previous studies. This study therefore reports the preliminary results of ongoing research investigating the bedding factors and the behaviour of concrete pipes under deep soil fill using validated numerical modelling. The results showed that the AASHTO bedding factors for type 2, type 3 and type 4 AASHTO installations are conservative, while the bedding factor is unsafe for pipes buried in type 1 installation with a backfill height of less than 2.4 m. Comparing the results of the present study with the British Standard bedding factors showed that these factors are overly conservative. Hence, both design standards should be updated to enhance the robustness of the design approaches and make the design of concrete pipes more economic.

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“…And his centrifuge test results of an induced trench culvert indicated that the base contact pressures were 25%-76% greater than the top pressure plus dead load because of shear stresses mobilized along the sidewalls (Mcguigan and Valsangkar, 2011) [22], and the induced trench culvert partially transferred the earth pressure from interior backfill prism to the lateral prisms, leading to increases of the earth pressure on the lateral walls and the foundation. An investigation was carried out by Turan et al (2013) [23] of induced trench method using a full-scale test embankment, and the results also showed that the loads on the crown of the induced trench installed culvert were 30% to 60% less than the overburden. Dong et al (2013) [24] performed a series of finite element analyses to study the variation law of pressure on crown under grid-shaped treatment.…”

Section: Introductionmentioning

confidence: 99%

Embankment Filling Loads on an Assembled Concrete Culvert beneath High Embankment

Huang

Xiao

et al. 2018

International Journal of Corrosion

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A culvert with prefabricated and assembled structural components is introduced to speed up the progress of highway construction in China. In order to clear the behavior of the prefabricated and assembled slab culvert, the center line section and the shoulder section of the embankment are selected for field tests. In the tests, the distribution and the growth of the earth pressures on the top slab and the lateral walls and the displacements and the deformations of the top slab and lateral walls are investigated, thereafter, the tested earth pressures are linearly fitted, and the formulas of fitting lines are obtained. The results show that the deflections of the lateral walls and of the cover slab are very small, and the variation of distribution and growth of the earth pressures presents significantly nonlinear characters, which is totally different from the linear earth pressure theory proposed by the current Chinese code. The vertical pressure is much smaller in the middle part of the top slab than that on both ends, and it is much larger than the linear theory results. The distribution curve of the lateral earth pressures on the lateral walls is approximately “3” in shape, and the maximum earth pressure locates at the junction of the cap and the lateral wall. The formula of the fitted line obtained from the primary stage pressure can be employed to estimate the earth pressure of embankment completion. The results of the field tests can provide references for the calculations of the components and the strength in the junctions of the assembled culverts.

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Investigation of Induced Trench Method Using a Full Scale Test Embankment

Cited by 22 publications

References 15 publications

Economical design of buried concrete pipes subjected to UK standard traffic loading

Economical design of buried concrete pipes subjected to UK standard traffic loading

Numerical Investigation of the Bedding Factor of Concrete Pipes under Deep Soil Fill

Embankment Filling Loads on an Assembled Concrete Culvert beneath High Embankment

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