Construction on Expansive Soils in Sudan

Charlie, Wayne A.; Osman, Mohamed Adil; Ali, Elfatih M.

doi:10.1061/(asce)0733-9364(1984)110:3(359)

Cited by 30 publications

(12 citation statements)

References 3 publications

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“…Unfortunately, Strip footing is suitable when the expansive soil produces slight swelling pressure. Severe cracking and damage to lightweight structures have been reported in these areas , particularly in agricultural areas, due to heave caused by expansive soils [3], [4], [7]. Figure 2 shows the typical crack and damage frequently occurred in the load bearing structure in Wad Madani city.…”

Section: Expansive Soil In Wad Medani Citymentioning

confidence: 99%

“…The expansive clay soil considered around the GPA was modelled using Mohr-Coulomb material model with undrained conditions. The soil layers properties were obtained from previous studies done in Wad Medani City [3], [7], [10]. The GPA properties have been derived from several previous researches.…”

Section: Numerical Modellingmentioning

confidence: 99%

“…Expansive soils are frequently detected across Sudan and cause a wide variety of foundation problems. Expansive soil areas cover almost all agricultural schemes and most infrastructure projects and occupy about 40 % of the total area of Sudan [3]. Extended of expansive soil challenges are generally very apparent in central and eastern Sudan.…”

Section: Introductionmentioning

confidence: 99%

“…Most heavily populated areas and infrastructure investments in Sudan have concentrated in this area. The swelling pressure causes significant discomfort and damage to lightweight structures due to the inadequate foundation system [3]- [5]. This soil behavior raises the annual maintenance, and in some cases, the costs of repairing or reconstructing damaged structures exceeded the initial cost of the construction [3].…”

Section: Introductionmentioning

confidence: 99%

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A Numerical Study of Strip Footing with Granular Pile Anchor Build on Expansive Soils, Wad Medani City – Sudan

Abas¹

2020

IRJIET

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Expansive soils in Sudan contributed to the failure of lightweight structures, resulting in increased annual maintenance costs. The purpose of this paper is to examine the effectiveness of the granular pile anchor (GPA) used with strip footing to increase resistance against swelling pressure caused by expansive soils in Wad Medan City, Sudan. The numerical study of various parameters of strip footing with GPA was achieved to come out with an effective and efficient solution for uplift damages due to expansive soils. Results indicate that the use of GPA with a strip foundation enhances the resistance capacity against swelling pressure.

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Section: Expansive Soil In Wad Medani Citymentioning

confidence: 99%

Section: Numerical Modellingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Numerical Study of Strip Footing with Granular Pile Anchor Build on Expansive Soils, Wad Medani City – Sudan

Abas¹

2020

IRJIET

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“…Jones and Jefferson [3] claimed that shrink-swell related soil movements cost the British economy ₤3 billion over the previous 10 years. Charlie et al [4] estimated damage due to expansive soils in Sudan at over $6 billion annually.…”

Section: Introductionmentioning

confidence: 99%

Effect of external hydraulic head on swelling of unsaturated clay

2020

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Laboratory testing of the one-dimensional swell of soil (usually unsaturated clay) is generally performed according to ASTM standard D4546. The standard procedure requires that “the specimen is inundated with test water and the one-dimensional wetting-induced swell or collapse strain is measured”. This procedure undoubtedly provides an upper limit to the swell which may be expected under field conditions, and may be relevant to cases in which low lying areas are expected to be inundated as a result of a wetting episode. However, in other cases, wetting of the soil may result from less extreme conditions - for example absorption of water from underlying, wetted layers, or soaking of the lower portion of a swelling layer and resultant upward wetting due to suction forces. The present paper describes a laboratory investigation of the effect of external hydraulic head on swell. The results demonstrate the importance of applying test conditions consistent with those expected in the field situation.

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