Earthquake Response of Connected and Unconnected Back-to-Back Geosynthetic-Reinforced Soil Walls

被引：12

作者：

Dram, Abdelkader ^{[1
]}

Balunaini, Umashankar ^{[2
]}

Benmebarek, Sadok ^{[1
]}

Sravanam, Sasanka Mouli ^{[3
]}

Madhav, Madhira R. ^{[2
]}

机构：

[1] Biskra Univ, Dept Civil Engn & Hydraul, NMISSI Lab, BP 145, Biskra 07000, Algeria

[2] Indian Inst Technol Hyderabad, Dept Civil Engn, Kandi 502285, Telangana, India

[3] Vallurupalli Nageswara Rao Vignana Jyothi Inst En, Dept Civil Engn, Hyderabad 500090, Telangana, India

来源：

INTERNATIONAL JOURNAL OF GEOMECHANICS | 2021年 / 21卷 / 11期

关键词：

Seismic earth pressure; Reinforced soil; Geogrid; Back-to-back walls; Finite-element analysis; SEISMIC RESPONSE; SHAKING TABLE; RETAINING WALLS; PERFORMANCE; BEHAVIOR; MODEL; DEFORMATION; FREQUENCY;

D O I：

10.1061/(ASCE)GM.1943-5622.0002206

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

A two-dimensional finite-element analysis based on PLAXIS 2D was used to study the behavior of connected and unconnected back-to-back mechanically stabilized earth walls under earthquake loading. The numerical model was first validated with the results from the full-scale dynamic centrifuge tests on reinforced soil-retaining walls. The behavior of connected and closely spaced unconnected back-to-back mechanically stabilized earth walls (BBMSE) was compared in terms of tensile forces mobilized in geogrids, and the lateral earth pressures and maximum displacements of the wall. The total seismic earth thrusts at the end of the reinforced zone and at the facing of BBMSE walls and their points of application were presented. These results were compared with the widely used Mononobe-Okabe method. The connected walls were found to significantly reduce the dynamic loads on the walls compared with those on unconnected walls.

引用

页数：13

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