Numerical analysis of MSE wall considering wall friction and reinforcement stiffness

S, Sasanka Mouli and B, Umashankar (2015) Numerical analysis of MSE wall considering wall friction and reinforcement stiffness. In: 14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014, 22-25, September 2014, Kyoto, Japan. (In Press)

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Abstract

The existing methods widely used for the design of Mechanically Stabilized Earth walls (MSE) do not consider the effects of reinforcement stiffness andwall-soil interface friction angle on the mobilized lateral earth pressures. For example, FHWA code provides the variation of the coefficient of lateral earth pressure, K, based on the type of reinforcement (extensible or inextensible reinforcement). The code recommends higher K values for MSE wall with inextensible reinforcement than that with extensible reinforcement. However, the reinforcement stiffness values corresponding to inextensible or extensible reinforcements are not defined in the code. In addition, the variation of K with depth is not available for intermediate values of reinforcement stiffness. Wall-soil interface friction angle is another important parameter that affects the mobilized lateral earth pressures. In the present study, Finite Difference Program (Fast Lagrangian Analysis of Continua FLAC) is used to study the effects of reinforcement stiffness and wall-soil interface friction angle on the lateral earth pressures for an active condition.

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IITH Creators:
IITH CreatorsORCiD
B, UmashankarUNSPECIFIED
Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Codes (symbols); Friction; Geomechanics; Pressure distribution; Retaining walls; Soils; Stiffness; Tribology Active conditions; Fast Lagrangian analysis of continuum; Interface friction angle; K-values; Lateral earth pressure; Mechanically stabilized earth wall; Reinforcement stiffness; Wall friction
Subjects: Civil Engineering > Soil Structure Interaction
Divisions: Department of Civil Engineering
Depositing User: Mr. Siva Shankar K
Date Deposited: 07 Oct 2014 05:00
Last Modified: 01 Sep 2017 06:33
URI: http://raiith.iith.ac.in/id/eprint/166
Publisher URL:
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