00965620

Component

https://doi.org/10.3141/1849-21

http://scholar.google.com...ster&publication_year=2003

U.S. Army Corps of Engineers design procedure was reviewed to validate the existing criteria for geotextile-reinforced unpaved roads and to modify the criteria for the addition of stiff biaxial geogrids. Geogrid stiffness here refers to products demonstrating good torsional rigidity and aperture stability. The theoretical basis for the existing design procedure was reviewed to ensure that appropriate assumptions were used to derive the current design method. Historical test section results were used to validate the empirical bearing-capacity factors, Nc, used for unreinforced and geotextile-reinforced base materials. In addition, an empirical bearing-capacity factor for geogrid reinforcement was derived to modify the existing design procedure for both geotextile and geogrid use. The relevant theory used in the development of the existing design method to establish the basis for the analyses is described. Previously unpublished test section results are presented and used to calculate experimental bearing-capacity factors, and the calculated factors are compared with the theoretical values used in the existing procedure. The results of the analyses support the use of the existing design procedure's bearing-capacity factor for unreinforced sections; the existing bearing-capacity factor for geotextile-reinforced unpaved roads appears to be unconservative for the conditions of the full-scale test section presented. Finally, a bearing-capacity factor for the use of a geogrid and geotextile combination is recommended for modification of the existing Corps of Engineers design procedure.

This paper appears in Transportation Research Record No. 1849, Soil Mechanics 2003.

English

p. 193-201

2003

Transportation Research Record

0309085845

Figures (5) ; References (8) ; Tables (5)

Bearing capacity; Design methods; Geogrids; Geosynthetics; Geotextiles; Material reinforcement; Test sections; Unpaved roads

U.S. Army Corps of Engineers

Design; Geotechnology; Highways; I42: Soil Mechanics

TRIS, TRB, ATRI

Nov 21 2003 12:00AM

• ANALYSIS OF DEEPLY BURIED FLEXIBLE PIPES
• AXIAL AND LATERAL LOAD PERFORMANCE OF TWO COMPOSITE PILES AND ONE PRESTRESSED CONCRETE PILE
• BURIED CORRUGATED THERMOPLASTIC PIPE: SIMULATION AND DESIGN
• CHARACTERIZATION OF TRANSVERSE CRACKING SPATIAL VARIABILITY: USE OF LONG-TERM PAVEMENT PERFORMANCE DATA FOR CONTINUOUSLY REINFORCED CONCRETE PAVEMENT DESIGN
• CONSTRUCTION-RELATED VARIABILITY IN PAVEMENT MAT DENSITY DUE TO TEMPERATURE DIFFERENTIALS
• DESIGN OF FIBER-REINFORCED POLYMER COMPOSITE PILES UNDER VERTICAL AND LATERAL LOADS
• DYNAMIC FINITE ELEMENT ANALYSIS OF VESSEL-PIER-SOIL INTERACTION DURING BARGE IMPACT EVENTS
• EFFECT OF BRIDGE-SOIL INTERACTION ON BEHAVIOR OF PILES SUPPORTING INTEGRAL BRIDGES
• EIGHT-YEAR FIELD PERFORMANCE OF SECONDARY ROAD INCORPORATING GEOSYNTHETICS AT SUBGRADE-BASE INTERFACE
• ENGINEERING PROPERTIES OF RECYCLED PLASTIC PINS FOR SLOPE STABILIZATION
• ESTIMATION OF PAVEMENT LAYER THICKNESS VARIABILITY FOR RELIABILITY-BASED DESIGN
• EVALUATION AND QUALITY CONTROL OF DRY-JET-MIXED CLAY SOIL-CEMENT COLUMNS BY STANDARD PENETRATION TEST
• FIELD PERFORMANCE OF EMBANKMENTS STABILIZED WITH RECYCLED PLASTIC REINFORCEMENT
• GEOSYNTHETIC-REINFORCED SOIL WALLS
• LABORATORY EVALUATION OF GEOGAUGE FOR COMPACTION CONTROL
• LOAD AND RESISTANCE FACTOR DESIGN, COST, AND RISK: DESIGNING A DRILLED-SHAFT LOAD TEST PROGRAM IN FLORIDA LIMESTONE
• RELATIONSHIP BETWEEN BACKCALCULATED AND LABORATORY-MEASURED RESILIENT MODULI OF UNBOUND MATERIALS
• RELATIONSHIP BETWEEN SOIL STIFFNESS GAUGE MODULUS AND OTHER TEST MODULI FOR GRANULAR SOILS
• SIMULATION OF FRACTURE INITIATION IN HOT-MIX ASPHALT MIXTURES
• SOIL ARCHING OVER DEEPLY BURIED THERMOPLASTIC PIPE (WITH DISCUSSION AND CLOSURE)
• STRENGTH PROPERTIES OF FLEXIBLE GEOGRIDS UNDER INDOOR AND OUTDOOR ULTRAVIOLET EXPOSURE
• USE OF STIFFNESS FOR EVALUATING COMPACTNESS OF COHESIVE PAVEMENT GEOMATERIALS
• USING PSEUDOSTRAIN DAMAGE THEORY TO CHARACTERIZE REINFORCING BENEFITS OF GEOSYNTHETIC MATERIALS IN ASPHALT CONCRETE OVERLAYS