Problem 1 A 20 ft high MSE wall is to be designed using geogrid reinforcement to support a roadway segment by I- 10 EB i

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Problem 1 A 20 Ft High Mse Wall Is To Be Designed Using Geogrid Reinforcement To Support A Roadway Segment By I 10 Eb I 1 (110.76 KiB) Viewed 28 times

Problem 1 A 20 Ft High Mse Wall Is To Be Designed Using Geogrid Reinforcement To Support A Roadway Segment By I 10 Eb I 2 (56.16 KiB) Viewed 28 times

Problem 1 A 20 ft high MSE wall is to be designed using geogrid reinforcement to support a roadway segment by I- 10 EB in the east of San Antonio. Material properties: Backfill material: f=34", g=115 pcf Retained soil: f=30°, g=115 pcf Required minimum FOS: pullout=2.0, rupture=2.0, bearing capacity=2.0, sliding = 1.5, overturning=2.0 Additional information is provided herein: 1. UX1400 is selected as the reinforcement Tensar 2500 Northwinda Parkway, Suite 500 Alpha Georgia 30009-2247 Phone: 800-TENSAR 1 www..com Product Specification - Structural Geogrid UX1400MSE Tensar International Corporation reserves the rigte to change its product specifications at any time it is the responsibility of the specifier and purchaser to more that product specifications and for design and procurement purposes are current and consistent with the products used in each instance Product Type: Integrally Formed Structural Geogrid Polymer: High Density Polyethylene Load Transfer Mechanism: Positive Mechanical Interlock Recommended Applications: MESA System (Segmental Block Walls), ARES System (Panel Walls) SierraScape System (Welded Wire Walls) Product Properties Index Properties Units • Tensile Strength @59 Strain kN/m (b/ft) • Ultimate Tensile Strength kN/m (1/1) Junction Strength kN/m (b/TL) • Flexural Suffness mg-cm Durability • Resistance to Long Term Degradation % . Resistance to UV Degradation" % Load Capacity . Maximum Allowable Strength for 120-year Design Life" kN/m (bit) Recommended Allowable Strength Reduction Factors? . Minimum Reduction Factor for Installation Damage (RF) • Reduction Factor for Creep for 120-year Design Lite (RFCR) . Minimum Reduction Factor for Durability (RF) MD Values 31 (2.130) 70 (4.800) 68 (4,520) 730,000 100 95 25.6 (1.780) 1.05 2.60 1.00 2. The layout of the reinforcement is provided below.
14 ft I 18" 20 ft Please (a) check the FOS for pullout and rupture for the 8th layer of reinforcement. (the layer is counted from bottom to top.) (b) check the overturning and slide of Fos.