2118 JEFFERSON PL 2024-10-25 - Laserfiche WebLink

- -- w 6 of 31 PROJECT NO. SHEET NO. -- 4,,� S230503-2XR �i 2118 Jefferson PI Everett WA 2 PROJECT 98 03 LONGITUDE SUBJECT Foundation Stabilization/Jacking ONE TWENTY° ENGINEERING&DESIGN BY JT DATE 08/29/2023 Ideal Foundation Systems 2-71 8"0 Helical Rile(0.203-inch wall thickness)-Soil Capacity per ESR-3750 DIGGA 10K Drive Torque, Torque Correlation Factor, Ultimate Axial Compressive Capacity, Allowable Axial Compressive Capacity, Head Pressure T Kt(Compression) P•=((t•T p,=o,5•p, (psi) (ft•lbs) (ft's) (kips) (kips) 500 1,740 9 15.7 7.8 600 2,088 9 18.8 9,4 700 2,436 9 21.9 11.0 800 2,784 9 25.1 12.5 900 3,132 9 28.2 14.1 1000 3,480 9 31.3 15.7 1100 3,828 9 34.5 17.2 1200 4,176 9 37.6 18.8 1300 4,524 9 40.7 20.4 1400 4,872 9 43.8 21.9 1500 5,220 9 47.0 23.5 1600 5,568 9 50.1 25.1 1700 5,916 9 53.2 26.6 1800 6,264 9 56.4 28.2 1900 6,612 9 59.5 29.8 •See Note viii. 2000 6,960 9 62.6 31.3 2100 7,308 9 65.8 32.9 2200 7,656 9 68.9 34.5 2300 8,004 9 72.0 36.0 2385 8,300 9 74.7 37.3 •See Note ii. i.)DIGGA 10K Drive Head differential pressure display to torque output has been pulled from the attached conversion charts provided by DIGGA. ii.)Per Table SA of ESR-3750 and Ideal Manufacturing Inc.,the maximum installation torque rating of a 2-7/8"0 helical pile(0.203-inch wall thickness)is 8,300 ft"lbs.Final installation torque shall not exceed this value. hi.)Piles shall reach a torque that correlates with an allowable capacity that meets or exceeds the maximum allowable load demand as listed in the structural package,but shall not exceed the maximum allowable capacity for any part of the pile assembly. iv.)Refer to ESR-3750 and Ideal Manufacturing,Inc.documents for additional information and requirements. v.)Definitions per ESR-3750: T=Final Installation torque in ft"lbs;the last torque reading taken during pile installation,using,for example,the torque reading instruments connected to the installation equipment. Kt=Torque correlation factor per ESR-3750 P.=Ultimate axial compressive capacity(in kips)of helical pile P.=Allowable axial compressive capacity(in kips)of helical pile vi.)For torque readings between those listed,use the following equation to determine the allowable capacity:P,=(T'9(J/2 vii.)1 kip=1,000 lin viii.)Per Note 3 of Ideal Group Dwg No.:278TFG dated 4/23/20,the ultimate structural capacity for the2 7/8"TRU-FORCE Underpinning Bracket is limited to 60 kips. L120 ENGINEERING&DESIGN