Effect of nail’s orientation and length on soil-nailed retaining structures’ stability

Askari, Afsane; Gholami, Arash

doi:10.1080/19375247.2017.1416569

Cited by 5 publications

(2 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They observed that in addition to the geometry of the slope and the soil characteristics, other factors such as the angle of the cables, the characteristics of cables, their length, and also the spacing between the cables have a great impact on the stability of the nailed slopes. Askari and Gholami [14] studied the optimal layers of nailing numerically under different conditions. In their study, the nailed wall examination was done in three geometries and two surcharges in terms of safety factor and displacement of the slope tip.…”

Section: Introductionmentioning

confidence: 99%

Effect of installation angle on pull-out resistance of nails in soil slopes

et al. 2021

View full text Add to dashboard Cite

In this study, the effect of the nailing angle on the pull-out capacity of nails in soil slopes was investigated using the finite difference method with the help of FLAC3D software. Initially, the geometric model was created at three different angles of the excavation slope (45°, 63°, and 80°). Considering the Mohr–Coulomb behavioral model and applying the physical and geometric parameters of the model in order to model the nail in the nailing system, five rows of nails at different angles, relative to the horizon, which included 5°, 10°, 15°, 20°, 25°, 30°, and 35° were used to evaluate the effect of change in the angle of the nail and the different angles of the excavation slope on the pull-out capacity of the nails. The results showed that the magnitude of the nail pull-out force, at slopes of the same level, increases as the angle of the excavation slope increases. Also, the maximum force is generated at the level range of 0.7 of the height from the upper edge of the slope and the nails situated at an angle of about 30° relative to the horizon. Therefore, according to the soil conditions, the angle of nail, and the factor of safety, the optimal implementation angle of the nail on the slope can be calculated in different designs.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of installation angle on pull-out resistance of nails in soil slopes

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Joel and Pedley, Shiu and Chang, Wei and Cheng, Singh and Babu, and Hajialilu-Bonab and Razavi [3][4][5][6][7] showed that the bending stiffness of nail is insignificant, and Singh and Babu [6] showed that the bending stiffness of the nail has little effect on the horizontal displacement of the wall. Fan and Luo, Rotte and Viswa, and Askari and Gholami [8][9][10] reported that, for vertical excavations, the horizontal nail has the best performance. Shiu and Chang [5] also showed that the stability of the excavation decreases with increasing the nail angle to the horizon.…”

Section: Introductionmentioning

confidence: 99%

Prefailure Deformation of Nailed Deep Excavations under Surcharge by Centrifuge Model Test

Shoar

Heshmati

Salehzadeh

2021

Advances in Civil Engineering

View full text Add to dashboard Cite

To study prefailure deformations in nailed deep vertical excavations under various surcharges, four centrifuge tests were used to explain the lateral deformation of facing, the fracture mechanism of cement facing, and the settlement profile of the ground surface. The soil used in this research was Firoozkooh sand No. 161. Both surcharge applying and excavation were performed at 40 g acceleration. The depth of the excavation was 30 cm, the length of the nail varied from H/3 to 2H/3 (H: excavation depth), and the nails were installed horizontally. The nails were made of brass pipes and then sand coated. The results showed that the effect of surcharge on the lateral deformation of the facing as well as the fracture mechanism of facing is obvious. Also, it was seen that the ground settlement profile is two-line or three-line at the moment of facing fracture and is affected by surcharge.

show abstract

Investigation of Failure Behaviour of Soil Nailed Excavations under Surcharge by Centrifuge Model Test

Shoar

Salehzadeh

2022

KSCE J Civ Eng

View full text Add to dashboard Cite

Effect of nail’s orientation and length on soil-nailed retaining structures’ stability

Cited by 5 publications

References 10 publications

Effect of installation angle on pull-out resistance of nails in soil slopes

Effect of installation angle on pull-out resistance of nails in soil slopes

Prefailure Deformation of Nailed Deep Excavations under Surcharge by Centrifuge Model Test

Investigation of Failure Behaviour of Soil Nailed Excavations under Surcharge by Centrifuge Model Test

Contact Info

Product

Resources

About