2730 W MARINE VIEW DR 2025-09-03

S" 0y I:TERRA WALL SYSTEM TENSION CALCULATIONS Tmax is the maximum tension in the reinforcing based on the earth pressure and surcharge loads applied. In the NCMA design method, earth pressures are calculated using the Coulomb Earth pressure equation. Infinite surcharge loads are applied as q x ka. In designs were there is a broken back slope, or the surcharge is not uniform over the area, a tie-back wedge analysis method is used. FS= (Tal * FS tn)/Tmax TABLE OF RESULTS Elevation[ft] ka z sv Name[ft] Tult[ppf] Ta[ppf] Rc% Tmax[ppf] FS 26.00 0.238 1.50 3.00 SG350 5,000 1,700 100 120 21.18 24.00 0.238 4.00 2.00 SG350 5,000 1,700 100 214 11.92 22.00 0.238 6.00 2.00 SG350 5,000 1,700 100 321 7.94 20.00 0.229 8.00 2.00 SG350 5,000 1,700 100 430 5.93 18.00 0.234 10.00 2.00 SG350 5,000 1,700 100 558 4.57 16.00 0.236 12.00 2.00 SG350 5,000 1,700 100 679 3.76 14.00 0.236 14.00 2.00 SG350 5,000 1,700 100 795 3.21 12.00 0.237 16.00 2.00 SG350 5,000 1,700 100 911 2.80 10.00 0.237 18.00 2.00 SG350 5,000 1,700 100 1,024 2.49 8.00 0.237 20.00 ' 2.00 SG350 5,000 1,700 100 1,135 2.25 6.00 0.237 22.00 2.00 SG350 5,000 1,700 100 1,246 2.05 4.00 0.238 24.00 2.00 SG350 5,000 1,700 100 1,358 1.88 2.00 0.238 26.00 2.00 SG350 5,000 1,700 100 1,467 1.74 Note: Calculations and quantities are for PRELIMINARY ANALYTICAL USE ONLY and MUST NOT be used for final n or construction without the independent review, verification, and approval by a qualified professional engineer. UltraWall 5.0.19183 13