Numerical simulation of ground anchors

Kim, Nak-Kyung; Park, Jongsik; Kim, Sung Kyu

doi:10.1016/j.compgeo.2006.09.002

Cited by 67 publications

(16 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to model the normal behavior, a hard contact was defined so that the contact elements would not interpenetrate. Furthermore, the stress limit has been used to simulate the adhesive behavior in tangential direction (Kim et al 2007;Theinat 2015). In this regard, the internal D r a f t 18 friction angle must be considered a great number so as to completely replicate the adhesive behavior in ABAQUS environment.…”

Section: Micropile Performance In Groupmentioning

confidence: 99%

Investigating performance of micropiled raft in foundation of power transmission line towers in cohesive soil: experimental and numerical study

et al. 2018

View full text Add to dashboard Cite

This paper captures the behavior of micropiled rafts in power transmission line tower foundations in cohesive soil, concentrating on their uplift performance whether due to the tower position along the line or under wind loading conditions. In this regard, first a number of micropiles were driven into the ground of a project site at the ParehSar power plant, Gilan, Iran. Compression and uplift loading tests were conducted according to relevant standards. On the basis of the field data, a three-dimensional finite element model was developed and subsequently calibrated and verified. The behavior of micropiled rafts subjected to uplift, which is a typical type of loading in foundations of 230 kV four-circuit lattice towers, was then studied by means of this model in terms of a wide-ranging parametric study. In the sensitivity analyses, the impacts of various parameters, such as micropile spacing-to-diameter (s/d) and length-to-diameter (l/d) ratios along with undrained shear strength of the soil, on the uplift capacity of an individual micropile within and out of the group were investigated. Furthermore, interaction factors were computed based on diverse values for undrained shear strength of the soil, s/d ratio, l/d ratio, and grout–soil adhesion. From design and analysis perspectives, the finite element method (FEM) outputs revealed that the efficiency coefficient of micropiled rafts during uplift can be considered equal to one. Moreover, it was found that not only does the behavior of micropiles affect the neighboring micropiles immediately adjacent to the loaded one, but it also influences those in further rows, the result of which would be considering their significance as well.

show abstract

Section: Micropile Performance In Groupmentioning

confidence: 99%

Investigating performance of micropiled raft in foundation of power transmission line towers in cohesive soil: experimental and numerical study

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Therefore, modeling of the interactions is the primary task of this paper. In the current literatures, three common approaches for modeling behaviors of rock/rock bolt interaction have been adopted, the Coulomb friction model, spring slider model and no slip [29]. The Coulomb friction model relates the shear stress across the interface to the contact pressure between the rock bolt and the rock [30].…”

Section: Interaction Between Bar and Cement-mortar Materialsmentioning

confidence: 99%

Dynamic behavior of cement-mortar cavern reinforced by bars

Wang

Tang

et al. 2015

Engineering Failure Analysis

View full text Add to dashboard Cite

“…, Beer , and Griffiths , are available, and recently, an important advance using fine FE grid to simulate soil/grout and grout/strand wire interfaces has been achieved (Kim et al . ). However, in engineering practice, a large amount of cable anchors are ordinarily installed for a reinforced structure.…”

Section: Introductionmentioning

confidence: 97%

Composite element model for the bonded anchorage head of stranded wire cable in tension

Chen

Zhang

Shahrour

2015

Int. J. Numer. Anal. Meth. Geomech.

View full text Add to dashboard Cite

SUMMARYAn elasto-viscoplastic model is formulated using composite element technique for the bonded anchorage head of stranded wire cable in rock mass. This composite element contains sub-elements corresponding to the rock material, the grout material, the stranded wire material, the rock/grout interface, and the grout/stranded wire interface, respectively. The displacement in each aforementioned sub-element is interpolated from the corresponding nodal displacements of the composite element. In this manner, the mesh generation taking into account of tension cable anchors may be highly facilitated. By the application of the virtual work principle, the governing equation for solving the nodal displacements of the composite element is established. The proposed model has been incorporated into the conventional finite element algorithm and implemented in the program CORE3, in which the anchorage head is embedded within the composite elements. The comparative study concerning the pull-out test has been carried out for the validation of the proposed model and algorithm.

show abstract

Numerical simulation of ground anchors

Cited by 67 publications

References 18 publications

Investigating performance of micropiled raft in foundation of power transmission line towers in cohesive soil: experimental and numerical study

Investigating performance of micropiled raft in foundation of power transmission line towers in cohesive soil: experimental and numerical study

Dynamic behavior of cement-mortar cavern reinforced by bars

Composite element model for the bonded anchorage head of stranded wire cable in tension

Contact Info

Product

Resources

About