Skip to main content

Advertisement

Log in

Determining optimal designs for geosynthetic-reinforced soil bridge abutments

  • Methodologies and Application
  • Published:
Soft Computing Aims and scope Submit manuscript

Abstract

The article presents a parametric study of optimal designs for geosynthetic-reinforced soil (GRS) bridge abutments. A mixed integer design optimization model GRS-BA was developed, which is comprised of an accurate objective function of the construction costs. The cost objective function was constrained by a set of geotechnical and design conditions that were in accordance with current practice rules and recommendations. The optimal design recommendation for GRS bridge abutments was developed. A typical example of such an abutment is presented in order to compare design solutions derived from conventional design methods with solutions obtained from the proposed optimal design procedure.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Subscribe and save

Springer+ Basic
$34.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or eBook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4

Similar content being viewed by others

Explore related subjects

Discover the latest articles, news and stories from top researchers in related subjects.

Abbreviations

B :

Width of the abutment

C :

Reinforcement effective unit parameter

D :

Effective width of the applied load at depth z

c exc :

Unit price of ground excavation

c sta :

Unit price of the fill soil stabilization

c geo,1 :

Coefficient for the cost calculation of various strengths of geotextiles

c geo,2 :

Coefficient for the cost calculation of various strengths of geotextiles

c fill,re :

Unit price of the reinforced fill soil

c fill,ret :

Unit price of the retained fill soil

c found :

Unit price of the concrete for the foundation at the base

c sill :

Unit price of the reinforced concrete for the sill

c batter :

Unit price of the front batter

DL:

Vertical dead load

d :

Clear distance

FSsliding,sill,min :

Minimum safety factor for the sliding failure of the sill

FSsliding,min :

Minimum safety factor for the sliding failure of the reinforced volume

FSpullout,min :

Minimum safety factor against reinforcement pullout

F 2 :

Horizontal load of the bridge

F* :

Pullout resistance factor

H 1 :

Height of the front wall

H 2 :

Height of the back wall

L :

Length of the geosynthetic reinforcement

L′ :

Effective length of the geosynthetic reinforcement

L e :

Length of embedment in the resistant zone behind the failure surface at depth z

L found :

Width of the foundation at the base

L i :

Length of embedment within the influence area inside the resistant zone

L sill :

Width of the sill foundation

L sill,ef :

Effective width of the sill foundation

LL:

Vertical live load

n prov,H2 :

Number of reinforcement layers in the back wall

n exc,back :

Excavation slope of the retained soil

n exc,face :

Inclination of the terrain slope

q :

Traffic surcharge

P r :

Pullout resistance

R c :

Coverage ratio

RFsill :

Reduction factor for the isolated sill

T :

Strength of the geosynthetic reinforcement

T max :

Maximum tensile force in the reinforcement at depth z

T ε=1% :

Minimum required reinforcement stiffness

t bridge :

Thickness of the bridge’s concrete slab

t wall :

Thickness of the wall

t found :

Thickness of the foundation at the base

t sill :

Thickness of the sill

α :

Scale effect correction factor

γ bridge :

Unit weight of the reinforced concrete

γ conc :

Unit weight of the concrete

γ re :

Unit weight of the retained earth

γ rf :

Unit weight of the fill soil

φ fs :

Friction angle of the foundation soil

φ re :

Friction angle of retained earth

φ rf :

Friction angle of the fill soil

Δh :

Spacing between the geosynthetic reinforcement layers

Δσh :

Supplemental horizontal pressure at depth z

Δσv :

Distributed vertical pressure from the sill

Δσvs :

Vertical soil pressure at depth z

References

Download references

Acknowledgements

The authors acknowledge financial support from the Slovenian Research Agency; research core Funding No. P2-0268.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Primož Jelušič.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Additional information

Communicated by V. Loia.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Jelušič, P., Žlender, B. Determining optimal designs for geosynthetic-reinforced soil bridge abutments. Soft Comput 24, 3601–3614 (2020). https://doi.org/10.1007/s00500-019-04127-8

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00500-019-04127-8

Keywords