Should Grouted Anchors Have Short Tendon Bond Length?

Barley, A D; Hossain, Delwar; Liao, Hung‐Jiun; Hsu, Shih-Tsung

doi:10.1061/(asce)1090-0241(1999)125:9(808)

Cited by 3 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The main contents of the design of the pile anchor support system are the strength and stiffness of the support pile, the depth of the pile body, the position of the anchor, the prestress of the anchor, and the tensile force. Barley and Barley Anthony and Windsor [33,34] studied the relationship between the anchorage length of the anchor and its bearing capacity, creep rate, load distribution, and the bond stress distribution of the anchor through model tests. Fattah et al [35][36][37] studied the change of bearing capacity and displacement of single pile and pile group foundation under load through indoor model test.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Deep Foundation Pit Pile-Anchor Supporting System Based on FLAC3D

Sun

2022

Geofluids

View full text Add to dashboard Cite

Relying on a deep foundation pit project in Beijing, using FLAC3D three-dimensional finite-difference software simulation combined with displacement monitoring data verification method, the deep foundation pit excavation and three-pile and two-anchor rod support system in anhydrous sand pebble stratum are systematically analyzed, and summed up the variation law of formation stress, internal force of soil nail, axial force of bolt, stress and displacement of pile in the process of excavation and support of deep foundation pit. The results show that during the excavation of the foundation pit, the maximum horizontal displacement of the sidewall is not at the top of the pile and the top of the slope but at a certain distance below the top of the pile. The axial force of the anchor rod is unevenly distributed along the length direction, the axial force of the free section is equal, the axial force of the anchoring section decreases in turn, and the prestress of the anchor rod spreads to the anchoring section after tensioning and locking. The soil-nailed wall is a passive force-bearing system, the force is small during the excavation and support process, and the axial force distribution along the length direction is large in the middle and small at the two ends. By analyzing the variation law of stress and deformation, the timeliness of the data in the construction process is improved, and an effective and reasonable case reference is provided for the informatization construction of simulated relevant working conditions.

show abstract

Section: Introductionmentioning

confidence: 99%

Analysis of Deep Foundation Pit Pile-Anchor Supporting System Based on FLAC3D

Sun

2022

Geofluids

View full text Add to dashboard Cite

show abstract

Semi-empirical Model for Predicting the Bearing Capacity of Reinjectable and Prestressed Anchors

Fernandes,

Pitanga,

Ferraz

et al. 2024

Geotech Geol Eng

View full text Add to dashboard Cite

Upper-Bound Limit Analysis of Ultimate Pullout Capacity of Expanded Anchor Cable

et al. 2023

View full text Add to dashboard Cite

Expanded anchor cables have been widely used in the rapid development of underground engineering. However, there are still some deficiencies in the computation of the ultimate bearing capacity of expanded anchor cables. Based on the upper-bound theorem of limit analysis, the upper-bound solution of the ultimate bearing capacity of an expanded anchor cable was derived. For this calculation, the instability mechanism of the soil at the front surface of the anchorage segment of the expanded anchor cable was assumed to satisfy the logarithmic spiral failure model, its 3D velocity discontinuity surface was generated using the spatial discretization technique, and the optimal solution was determined through the particle swarm optimization (PSO) algorithm. The breakage mechanism of the anchorage side surface was assumed to appear at the interface between the anchorage body and the soil, and its velocity field satisfied the requirements of the associated flow rule. The accuracy of the proposed analytical solution was well-verified through a comparison with three-dimensional numerical simulations, and its superiority was also well-demonstrated in comparison to the existing theoretical calculation method. Subsequently, the influence of the key parameters of the anchor cable on the ultimate lateral resistance, end resistance, and total pullout capacity was discussed. The results showed that: the anchorage segment diameter, anchorage segment length, and buried depth of the expanded anchor cable had a great influence on the ultimate lateral resistance, ultimate end resistance, and total ultimate pullout capacity; however, the anchorage segment length had little influence on the ultimate end resistance, and the inclination angle of the anchor cable had relatively little influence on the resistance.

show abstract

Should Grouted Anchors Have Short Tendon Bond Length?

Cited by 3 publications

References 5 publications

Analysis of Deep Foundation Pit Pile-Anchor Supporting System Based on FLAC3D

Analysis of Deep Foundation Pit Pile-Anchor Supporting System Based on FLAC3D

Semi-empirical Model for Predicting the Bearing Capacity of Reinjectable and Prestressed Anchors

Upper-Bound Limit Analysis of Ultimate Pullout Capacity of Expanded Anchor Cable

Contact Info

Product

Resources

About