00712985

Component

http://onlinepubs.trb.org...trr/1995/1474/1474-002.pdf

https://scholar.google.co...rett&publication_year=1995

Analysis, design, and testing of independent reinforced concrete facing panels for mechanically stabilized earth (MSE) walls are reported. Panels are intended for use as full-height facing for a variety of mechanical reinforcements for fills, including geotextiles, polymer geogrids, and steel mesh. Panels provide a forming surface and permanent facing for MSE walls, but are independent of the reinforced fill. Panels are attached to stable MSE constructions with flexible anchors and that limit the earth pressures that can act on panels. Loads on panels are minimal, and panel size and appearance may be tailored to the requirements of individual projects and sites, offering options in construction and in appearance of the finished wall not previously available. Independent facing was tested in a prototype MSE wall using Ottawa sand fill reinforced by a nonwoven geotextile. In the test, flexible anchors performed as expected; earth pressures on panels were bounded by anchor yield loads; and, beyond an initial loading determined by anchor strength, earth pressures on panels did not increase with added surcharge. The basis for design of independent facing systems, methods for stress analysis of independent facing panels, an outline of construction procedures for MSE walls with independent facing, options for anchors and panels in independent facings, and a test of a prototype independent facing panel are presented.

This paper appears in Transportation Research Record No. 1474, Mechanically Stabilized Backfill and Properties of Geosynthetics and Geocomposites. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01399792

English

p. 13-22

1995

Transportation Research Record

0309061105

Figures (9) ; References (11) ; Tables (3)

Construction management; Design; Earth pressure; Earth walls; Mechanically stabilized earth; Panels; Prototype tests; Reinforced concrete; Stabilized materials; Structural analysis; Testing

Anchors; Concrete panels

Bridges and other structures; Construction; Design; Geotechnology; Highways; I24: Design of Bridges and Retaining Walls; I42: Soil Mechanics

TRIS, TRB

Oct 12 1995 12:00AM

• BIOTECHNICAL STABILIZATION OF STEEPENED SLOPES
• CONTRACTING FOR MECHANICALLY STABILIZED BACKFILL WALLS
• EXPERIENCES WITH MECHANICALLY STABILIZED STRUCTURES AND NATIVE SOIL BACKFILL
• INFLUENCE OF GEOSYNTHETIC REINFORCEMENT ON GRANULAR SOILS
• LIMIT CONDITION FOR FIBER-REINFORCED GRANULAR SOILS
• ONE-DIMENSIONAL COMPRESSION CHARACTERISTICS OF ARTIFICIAL SOILS COMPOSED OF MULTIORIENTED GEOSYNTHETIC ELEMENTS
• PULLOUT MECHANISM OF GEOGRIDS UNDER CONFINEMENT BY SANDY AND CLAYEY SOILS
• REINFORCEMENT OF FISSURED CLAYS BY SHORT STEEL FIBERS
• RETAINING STRUCTURE SELECTION AT PROJECT LEVEL
• STRESS-STRAIN AND STRENGTH BEHAVIOR OF STAPLE FIBER AND CONTINUOUS FILAMENT-REINFORCED SAND
• SURVIVABILITY AND DURABILITY OF GEOTEXTILES BURIED IN GLENWOOD CANYON WALL
• TEXSOL: MATERIAL PROPERTIES AND ENGINEERING PERFORMANCE