A Typical Design of Soil Nailing System for Stabilizing a Soil Slope: Case Study

Alsubal, Shamsan; Harahap, Indra Sati Hamonangan; Babangida, Nuraddeen Muhammad

doi:10.17485/ijst/2017/v10i4/110891

Cited by 12 publications

(3 citation statements)

References 5 publications

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“…Consequently, the bond resistance applied is 44.44 kN/m (100/1.5/1.5). The diameter of the grouted section in contact with the soil (bond diameter) is 0.318 m [4], [36], [37]. The optimization process in SLOPE/W begins by dividing the critical trial slip surface into several straight-line segments, as shown in Fig.…”

Section: Soil Nailmentioning

confidence: 99%

Effect of Soil Nailing on the Slope Stability of Road Embankments Under Traffic Load Using the Optimized Lem

Rashad

Mahmoud

Hasham

et al. 2023

Journal of Advanced Engineering Trends

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Road embankments may fail without warning, with devastating results. Thus, it is essential to understand the slope stability mechanism of road embankments under traffic load and optimize mathematical models of slope stability to enhance the computation of safety factors and the position and shape of the slip surface. This study's main aim is to examine the effect of soil nailing on the applicability of optimized mathematical models of the slope stability of road embankments under traffic load. Mathematical analysis was conducted using SLOPE/W software, which is based on the theories and principles of the limit equilibrium method (LEM) and enhances its results using an optimization function. The effect of Soil nailing on the applicability of optimized mathematical models of the slope stability was studied in terms of inclination, spacing, and length of the case study slope, located at Salmona village in Akhmim city, Sohag governorate for the head regulator of Nag Hamady canal. The results indicate that the optimized LEM enhanced the value of the safety coefficient in all cases considered by this study, and also modeled the slip surface's shape and position more realistically. Additionally, when the length of the soil nails and number of rows increased, the factor of safety (FOS) also increased: the proper inclination of the soil nails determined in this study was 10° to 20°.

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Section: Soil Nailmentioning

confidence: 99%

Effect of Soil Nailing on the Slope Stability of Road Embankments Under Traffic Load Using the Optimized Lem

Rashad

Mahmoud

Hasham

et al. 2023

Journal of Advanced Engineering Trends

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“…The inclination of soil nails and cable anchors significantly affects slope stability. Typical nail inclination should be 60°, 50°, and 40° to the horizontal, for slope with steepness of 30°, 45° and 60° respectively [21], [22]. Cable anchors are installed at an angle of 10°-45° with horizontal.…”

Section: Model Preparationmentioning

confidence: 99%

Analysis of Maximum Economic Length of Soil Nail for Slope Stability

Pathak

2023

JEMT

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Slope stability is of utmost importance in geotechnical engineering, necessitating effective reinforcement methods to mitigate failures. This study examined the advantages, limitations, and overall suitability of soil nails and cable anchors in stabilizing slopes. Numerical modeling and analysis were performed using the Rocscience Slide2 program. The study analyzed soil nails and cable anchors for slopes of 10 m to 60 m height, slope angle from 35° to 90°, and friction angle from 27° to 36°. The findings reveal that the maximum economic length of soil nails decreases as slip surface depth, slope height, and slope angle increase. Additionally, the friction angle of the soil has a negligible effect on the maximum economic length of the soil nail.

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“…López et al (2017) used a finite element method to estimate the earth pressures transferred to a pile, the moment and shear forces on the pile, and the anchor's stresses. Alsubal et al (2017) also reported that angles of anchor give different results in deep excavation stability.…”

Section: Introductionmentioning

confidence: 98%

Parametric Study of the Effect of Ground Anchor on Deep Excavation Stability

Pratama

Hardyatmo

Faris

2020

Journal of the Civil Engineering Forum

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Apartment construction is mostly carried out by including deep excavation works. However, excavation causes land instability; hence, the work needs to be done by a particular handler. In some cases, deep excavation is carried out on soft soil, which has a very high level of soil instability; therefore, a specific handling method such as ground anchor is required as an alternative. This study aims to conduct parametric research on the effect of using anchors on the stability of deep excavation. First, anchors of various slopes were modelled while varying the number of anchors up to four pieces. From the results of the study, the requirements representing the most efficient use of anchors were selected, and then various anchor bond lengths were modelled. Finally, the effect of applying various magnitudes of prestress forces to the anchor was determined. All of the models were examined to determine the influence on the stability of the deep excavation by observing the horizontal displacement and the forces that occur on the secant pile. From the analysis results, it can be concluded that the most effective slope angle is 0°. The displacement and forces occurred in the secant piles on the use of two, three, or four anchors has not a significant difference. The application of a higher prestress force on the anchor would yield better results as long as it is not exceeding 200 kN. However, in the case of an apartment building’s plans in Surabaya, the optimal anchor usage was found to be the use of two anchors with a 45° slope, 4.5 m for the first (A) and second (B) anchor bond lengths, 15 m free length anchor, 2.5 m vertical anchor distance, 1.2 m horizontal anchor distance, and the application of 200 kN prestress force.

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A Typical Design of Soil Nailing System for Stabilizing a Soil Slope: Case Study

Cited by 12 publications

References 5 publications

Effect of Soil Nailing on the Slope Stability of Road Embankments Under Traffic Load Using the Optimized Lem

Effect of Soil Nailing on the Slope Stability of Road Embankments Under Traffic Load Using the Optimized Lem

Analysis of Maximum Economic Length of Soil Nail for Slope Stability

Parametric Study of the Effect of Ground Anchor on Deep Excavation Stability

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