Abstract
In this study, a three-dimensional (3D) response of anchored sheet pile walls was investigated on double-anchored sheet pile system during soils excavation and tunnel construction sequence. This construction procedure is executed in areas front and adjacent the sheet pile walls. This paper focused on both areas of construction effects on the sheet piles. This numerical study aimed at the evaluation of the variation of bottom wall bending moment, top wall lateral and vertical displacements and anchor reactions forces exerted in the sheet piles. This paper also described the variation of the total anchor's reactions forces from the upper and lower anchors rows. A parametric effect such as upper and lower anchors rows distance was also performed to evaluate the variation of the wall bending moment, displacement and anchors total forces. The analysis results indicated that the reactions forces developed in the lower anchor rods are always higher than those developed in the upper anchor rods. The higher the distance between the upper and the bottom anchors the lower the displacement of the top wall in any stage of the construction. The minimum bottom walls bending moment is developed in the case where the distance between the anchor's rows divided by the wall height is 0.51. Positioning the upper anchors at 0.15 and the lower at 0.39 the wall height from the top wall will induce minimum top wall vertical displacement during soil excavation. This paper presents the results and findings of the parametric study performed.
Highlights
Retaining walls can be used to support back soil during excavation and construction sequence
A numerical parametric study on both systems double-anchored sheet piles subjected to excavation, tunnel part construction, soil backfill was conducted to evaluate the variation of top wall horizontal displacement and bottom wall bending moment in the three-dimensional analysis
The influence of the adjacent part construction decreases with its distance to the wall increase
Summary
Retaining walls can be used to support back soil during excavation and construction sequence. Retaining walls can be cantilever or Anchored sheet piles. In case of the wall, height is between 3 - 5 m cantilever sheet pile walls can be used [2, 3, 4, 5, 6, 7, 8]. In case of the wall, height exceeds 5 m or when the design consideration induces the limitation of the lateral wall deflection anchored sheet pile walls can be used [9]. Sheet pile wall can be used to support the soil from pouring after excavation (Fig. 1) shows the sheet pile walls position and the tunnel construction zone delimited in this project. The tunnel water collecting wells are respectively arranged at the intersection of the closed section and the open section of each entrance
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
