1434 GRAND AVE 2023-06-22 - Laserfiche WebLink

, 7 of 31 PROJECT NO. SHEET NO. S210630-4XR PROJECT 1434 GRAND AVE, EVERETT, WA 98201 LONGITUDE SUBJECT Foundation Stabilization/Jacking ONE TWENTY FY 07/21/2021 ENGINEERING&DESIGN BY DATE Ideal Foundation Systems 2-7/a`'0 Helical Pile(0.203-inch wall thickness)-Soil Capacity per ESR-3750 DIGGA 101 Drive Torque Corretanbn Factor, K, Uhimate Axial Compressive Allowable Pool Compress m Head Torque, T Compression Capecay, P.=K,•T Capacity, P.=0.5*P Pressure rfr`ibs) (Psi) (n`) kips' tool 500 1,740 9 15.7 7;9 600 2,088; 9 18:8 9.4 700 2,436 9 21.9 11_0 800 2,784 9 25.1 125 900 3,132 9 28.2 14.3 1000 3.480 9 31.3 15.7 1100 3.828 9 34 5 17.2 1200 4,176 76 9 37.E 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 50.1 251 3700 5,915 9 53.2 26:6 1800 5,264 9 56.4 28.2 MAX 1900 6.612 9 59.5 29.11 'See Note vill 2000 6,960 9 62.6 31.3 2300 7,308 9 65.8 32.9 2200 7,556 9 68_9 34.5 2300 8,000 9 72-,0 360 *See Note It 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 5A 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"ibs.Final installation torque shall not exceed this value. iii.)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. K,=Torque correlation factor per ESR-3750 P„=Ultimate axial compressive capacity(in kips)of helical pile Po=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'K,)f2 vii.)1 kip=1,000 lbs viii.)Per Note 3 of ideal Group Dwg No.:278TFG dated 4/23/20,the ultimate structural capacity for the 2 7/8"TRU-FORCE Underpinning Bracket is limited to 60 kips. L120 ENGINEERING&DESIGN