Design Theory and Method of Geo-Synthetic Reinforced Soil Retaining Wall Combined with a Gravity Retaining Wall or Full
- PDF / 1,245,590 Bytes
- 12 Pages / 547.087 x 737.008 pts Page_size
- 86 Downloads / 210 Views
(0123456789().,-volV) ( 01234567 89().,-volV)
ORIGINAL PAPER
Design Theory and Method of Geo-Synthetic Reinforced Soil Retaining Wall Combined with a Gravity Retaining Wall or Full Height Rigid Facing Xiequn Wang . Rajyaswori Shrestha
. Xinping Li . Abhay Kumar Mandal
Received: 25 June 2019 / Accepted: 15 October 2020 Springer Nature Switzerland AG 2020
Abstract Geo-synthetic reinforced soil retaining wall (GRS-RW) combined with a Gravity Retaining wall (GRW) facing or Full High Rigid (FHR) facing is a new type of retaining wall. This type of retaining wall is used to get full advantages of GRW and reinforced soil retaining wall (RS-RW) and to avoid their drawbacks. The design method based on the principle of working strain considers the backfill in the limit state but the reinforcement not in the limit state; while in traditional design method based on the tensile strength of reinforcement, consider both backfill and reinforcements in the limit state and it cannot reflect the influence of reinforcement stiffness. In this paper, numerical analyses were performed to evaluate the stress and strain of both reinforcement and backfill. From the analyses, deformation of the retaining wall,
X. Wang R. Shrestha (&) A. K. Mandal School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, Hubei, China e-mail: [email protected] X. Wang e-mail: [email protected]
the working performance of GRS-RW with GRW facing, and contribution of geo-grids to GRS-RW with a GRW facing, were evaluated. Analyses are performed for determining the force between GRS-RW with a GRW facing and reinforced soil. Analytical methods, for the calculation of soil pressure acting on the back of GRW, based on the principle of working stress are obtained by comparative analysis between the working performance characteristics of common GRS-RW and GRS-RW with GRW facing. A new analytical method for determining the force between GRS-RW with a GRW facing and reinforced soil ‘‘E’’ is proposed. By comparative study between theoretical and numerical analysis results, method 1 and method 2 are recommended for determining the ‘‘E’’. A method for determining the tension in the reinforcement of GRS-RW with a GRW facing based on the principle of working strain is also presented in this paper. Keywords Geo-synthetic reinforced soil retaining wall (GRS-RW) Geo-grid Reinforced soil Gravity retaining wall (GRW) facing Working strain Full height rigid facing (FHR)
A. K. Mandal e-mail: [email protected]
1 Introduction X. Li Hubei Key Laboratory of Roadway Bridge and Structural Engineering, Wuhan University of Technology, Wuhan 430070, Hubei, China e-mail: [email protected]
In the highway, railway, building, mining, port, water conservancy projects, and many other infrastructures,
123
Geotech Geol Eng
gravity retaining wall (GRW) has been widely used because of its high rigidity, simple structure, and convenient construction. Slope stability is a common problem to occur in sites of geotechnical engineering
Data Loading...
