The simultaneous use of piles and prestressed anchors in foundation design

Danziger, Fernando Artur Brasil; Danziger, Bernadete Ragoni; Pacheco, Marcus

doi:10.1016/j.enggeo.2006.06.003

Cited by 19 publications

(6 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many types of rock slope reinforcement problems arise from the development and construction of such projects. The anchor cable reinforcement system is now recognized as one of the most effective and convenient reinforcement measures for rock slopes and foundations (Danziger et al 2006;Sun et al 2010). The current study relates to anchored slopes and focuses on stability of the rock slope, mechanical calculation of anchor cables and optimization of anchor cable design.…”

Section: Introductionmentioning

confidence: 99%

Layout and length optimization of anchor cables for reinforcing rock wedges

Wang

et al. 2015

Bull Eng Geol Environ

View full text Add to dashboard Cite

This paper presents an optimization study on the layout and length of anchor cables for stabilizing rock wedges from the perspective of their three-dimensional geological characteristics. On the basis of the generalized geometry model for rock wedges, the expression of driving force of slope at the arbitrary longitudinal section can be deduced by employing the hyperbolic model between driving force and scale factor of rock wedges. Due to the remarkable parabolic characteristics of the driving force expression of rock wedges, a corresponding non-uniform layout principle of anchor cables was proposed, with closer layout in the central part and sparse layout near the side boundaries. The rational length of anchor cables was quantified on the basis of specification and the three-dimensional spatial characteristics of rock wedges. Furthermore, the upper limit spacing of anchor cables was determined by the spacing threshold caused by the parabolic distributed driving force. The spacing distribution of the optimized anchor cables was verified as a parabolic distribution according to a case study on the Shuige rock wedge in Lishui City, China. Compared with the conventional uniform spacing and length design scheme, the adjusted optimal non-uniform scheme can reduce the anchor cables by 16.9 % and 18.9 % in number and in total length, respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Layout and length optimization of anchor cables for reinforcing rock wedges

Wang

et al. 2015

Bull Eng Geol Environ

View full text Add to dashboard Cite

show abstract

“…Researchers from all around the globe have made significant progress in the study of deep foundation pit excavation defamation law in recent years [3][4][5][6][7], including deep horizontal displacement, bottom uplift, surface settlement, and building settlement throughout the process.…”

Section: Introductionmentioning

confidence: 99%

Study on the Influence Law of Deep Displacement on Anchor Cable Internal Force Under Pile and Anchor Support System of Deep Foundation Pit

Zhang,

Gu,

Wang

et al. 2023

Advances in Frontier Research on Engineering Structures

View full text Add to dashboard Cite

Numerous advances in the understanding of the deformation law of deep foundation pit excavation have been accomplished recently. However, there hasn’t been much investigation into how deep displacement laws affect the internal pressures of anchor cables. In order to better understand how deep displacement impacts the internal force of the anchor cable beneath the pile anchoring system of the deep foundation pit, this essay will look into that issue. Using finite element analysis software and the findings of a study of a deep foundation pit project in Jinan City, a two-dimensional model of the deep foundation pit project was produced. In order to replicate the internal force of the anchor cable and the deep soil movement during foundation pit excavation. The findings indicate that there is high agreement between measured values and the numerical simulation results for internal forces and deep soil displacement. In normal situations, the deep displacement of soil caused by excavation causes the internal force of the anchor cable to increase at the start of construction but decrease as work progresses. With the gradual increase of the soil’s deep displacement, the anchor cable’s internal force also increases, and its variation trend is approximately in line with the linear law, which provides theoretical support for the actual engineering construction.

show abstract

“…As an active reinforcement technology, applying prestressed anchor cables is an important technological method used to reinforce a slope [1][2][3][4][5][6]. On the one hand, prestressed anchor cables induce rock and soil masses on the surface of slopes to be under triaxial compression, thus increasing their strength.…”

Section: Introductionmentioning

confidence: 99%

Reinforcement Mechanism and Optimisation of Reinforcement Approach of a High and Steep Slope Using Prestressed Anchor Cables

Chen

et al. 2019

Applied Sciences

View full text Add to dashboard Cite

Using prestressed anchor cables is one of the most common approaches for reinforcing slopes. By establishing a calculation model for a high and steep slope, the changes of displacement of slope foot and increment of force on the cables under different prestresses were calculated. Furthermore, the influence of prestress on the changes of displacement of slope foot and force on the cables was analysed. By analysing the changes in force on cables in different parts of the slope, the reinforcement mechanism of a prestressed anchor cable on the slope was attained. The result showed that the reinforcement effect of prestressed anchor cable on the slope was mainly attributed to it effectively restricting the displacement of sliding mass in the slope, while the effect of cables in the lower part of the slope was more significant than that of those in the upper part of the slope. Therefore, to reduce the number of cables, decrease the construction difficulty of cables and save money, it is feasible to remove cables in the range of the upper-third of the slope. Afterwards, by improving the cable prestress in the range of the lower-third and reducing the cable prestress in the middle, the safety factor of the slope can satisfy design requirements, thus reinforcing the slope.

show abstract

The simultaneous use of piles and prestressed anchors in foundation design

Cited by 19 publications

References 32 publications

Layout and length optimization of anchor cables for reinforcing rock wedges

Layout and length optimization of anchor cables for reinforcing rock wedges

Study on the Influence Law of Deep Displacement on Anchor Cable Internal Force Under Pile and Anchor Support System of Deep Foundation Pit

Reinforcement Mechanism and Optimisation of Reinforcement Approach of a High and Steep Slope Using Prestressed Anchor Cables

Contact Info

Product

Resources

About