Numerical Analysis of Soil Slope Stabilization by Soil Nailing Technique

Mangnejo, Dildar Ali; Oad, S. J.; Kalhoro, S. A.; Ahmed, Shoaib; H., Laghari, F.; Siyal, Z. A

doi:10.48084/etasr.2859

Cited by 16 publications

(9 citation statements)

References 10 publications

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“…Elastic perfectly plastic (t-z) relation for sandy soils, suggested by the American Petroleum Institute [9], is used to represent the nonlinearity of soil springs. An elastic-perfectly plastic model has been used to simulate the pile shaft resistance, [2,[9][10][11][12]. It has been also used to model the grout-soil interface in grouted ground anchors [6,[13][14][15].…”

Section: A Soil-grout Interface Modelingmentioning

confidence: 99%

“…The properties of tested anchors with the number of elements used for each anchor model are listed in Table II. The modulus of elasticity for the strand is (E s =200×10 3 MPa), while the modulus of elasticity of the grout is calculated according to (25) [33], which is equal to Figures (11)- (13) show the total displacement of the anchor head vs the applied load for the measured model and the finite element. The displacement consists of the following components:…”

Section: ) Field Tests Modeling Of the Tension Anchorsmentioning

confidence: 99%

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One-Dimension Finite Element Modeling of Grouted Ground Anchor

Al-Baghdadi

Ahmed²,

Aljorany³

2022

Eng. Technol. Appl. Sci. Res.

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In the present research work, a one-dimension finite element model has been developed to simulate both compression and tension types of grouted ground anchors. The steel tendon-grout interface has been modeled by using the local bond-slip model, while the soil-grout interface has been modeled with a series of perfectly elastic plastic springs. The verification of the proposed one-dimension finite element model has been made by comparison of the model results with a three-dimension finite element model developed by commercial finite element software PLAXIS, and with the results of field tests of tension-type grouted ground anchor. A parametric study has been made to study the load-transfer mechanism for both types of anchors, compression, and tension. The compression-type anchor exhibits less displacement than the tension one under the same applied load. The developed strain in the grouted body of the compression-type anchor is much smaller than the tension-type one, regardless of the type of strain.

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Section: A Soil-grout Interface Modelingmentioning

confidence: 99%

Section: ) Field Tests Modeling Of the Tension Anchorsmentioning

confidence: 99%

One-Dimension Finite Element Modeling of Grouted Ground Anchor

Al-Baghdadi

Ahmed²,

Aljorany³

2022

Eng. Technol. Appl. Sci. Res.

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“…Numerical modelling was performed using FLAC-2D software with and without soil nails in the slope and estimated that the FOS gets increases as the slope angle increases and the installation angle of the nail rises [32]. FOS got reduced as the length of the nail increases, and as the nail inclination decreases, the FOS increases [33], [34].…”

Section: Effect Of Soil Nail Inclination On the Stability Of A Slopementioning

confidence: 99%

Performance of Soil Nailing for Slope Stabilization-A Review

Bathini

Krishna

2022

IOP Conf. Ser.: Earth Environ. Sci.

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A landslide is a geological event involving a wide range of ground motions that leads to the collapse of soil slope. The stabilization of these soil slopes is done by constructing retaining walls to withstand lateral soil pressure. These retaining walls are costly as well as it is difficult to construct as they require wide excavation for the base or bottom slab. One of the many new solutions to slope stabilization is the soil nailing built by strengthening the steep slope by driving reinforcement into the soil. In this study, a review of the origin and mechanism of soil nailing, the construction process of soil nailed retaining walls were discussed. The failure pattern of soil nails is an important factor to be noticed which influence the stability of soil slope was discussed. Numerical studies were given, which are used to determine the adverse effect of orientation and inclination of nails on the stability of soil nailed walls. A couple of case studies were discussed to evaluate the significance of soil nailing on the stability of the slope and to retain the vertical cut. A Laboratory study was considered to estimate the effect of nail inclination and different nail arrangements on settlement of soil slope. A sequential literature review investigates the application, advantages and disadvantages of soil nailing. This study shall help in understanding the various applications of soil nailing in the civil engineering sector.

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“…Our approach is indeed to perform a backward calculation with a minimum SF of 1,10. This overall factor is defined as the ratio of the maximum shear stress (Tmax) to the mobilized shear stress (Tm) along the failure surface [24]. Generally, Tmax is related to destabilizing actions such as water and surcharges.…”

Section: B Analysis Of the Stability Of The Existing Slopementioning

confidence: 99%

Application of the Nailing Technique to Stabilize a Slope in a Section of the Twinning of Road and Rail Infrastructure

Ouakkass¹,

Ouadif²,

Akhssas³

2022

International Journal on Advanced Science, Engineering and Information Technology

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Nailing is one of the most widely used stabilization techniques because of its technical and economic advantages. It is a practical and effective solution for the reinforcement of in-place slopes. It consists of placing in the soil high resistance nails to increase the cohesion of the soil and its resistance to traction and shear, which allows having a new material of great capacity. In this paper, we present the slope stability study in a section twinning of the road and railroad infrastructures between the kilometer points (KP) 105+938 and 106+263 of the line connecting Casablanca to Marrakech. The railroad track's topographic constraints and geometric requirements made the nailing method appeal to the realization of the new railroad in this area. The objective of this work is, on the one hand, to present the stability analysis of the slope before the earthwork and the implementation of the new railroad and, on the other hand, to evaluate the performance and stability of the nailed walls. The stability analysis of the soils in this section was verified in terms of safety coefficient using the calculation software TALREN. In the end, it can be concluded that the stability calculation results are conclusive and allow for highlighting the effectiveness of the innovative solution of nailing. This technique can be considered a good alternative to improve the safety and performance of excavation walls.

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Numerical Analysis of Soil Slope Stabilization by Soil Nailing Technique

Cited by 16 publications

References 10 publications

One-Dimension Finite Element Modeling of Grouted Ground Anchor

One-Dimension Finite Element Modeling of Grouted Ground Anchor

Performance of Soil Nailing for Slope Stabilization-A Review

Application of the Nailing Technique to Stabilize a Slope in a Section of the Twinning of Road and Rail Infrastructure

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