Laserfiche WebLink
7 of 34 <br /> PROJECT NO. SHEET NO. <br /> S210203-1 XR <br /> PROJECT 2006 Oakes Ave, Everett, WA 98201 <br /> LONGITUDE SUBJECT Foundation Stabilization/Jacking <br /> ONE TWENTY ZT 5/10/2021 <br /> ENGINEERING&DESIGN BY DATE <br /> IdealFourdatton Systems 2-7/8"O Helical Pile(0.203-inch wall thickness)-Soil Capacity per ESR-3750 <br /> DIGGA 10K Drive Torque, Torque Correlation Factor, Ultimate Axial Compressive Capacity, Allowable Axial Compressive Capacity, <br /> Head Pressure T ft,(Compression) P.=Kest P.=0.5*P, <br /> (ft(Psi) *lbs) (ft't) (kips) (kips) <br /> 500 1740 9 15.7 7.8 <br /> 600 2088 9 18.8 9.4 <br /> 700 2;436 9 21.9 11.0 <br /> 800 2,784 9 25.1 12.5 <br /> 900 3,132; 9 282 14.1 <br /> 1000 3,480 9 31,3 15.7 <br /> 1100 3,8288' 9 34.5 17.2 <br /> 1200 4,176 9 37.6 18,8 <br /> 1300 4,524, 9 40.7 20.4 <br /> 1400 4,872 9 43.8 21.9 <br /> 1500 5,220 9 47.0 23.5 <br /> 1600 5,568 9 50.1 25.1 <br /> 1700 5,916 9 53.2 26.6 <br /> 1800 6,264 9 56.4 28.2 <br /> 1900 6,612 9 59.5 29.8 "See Note vet <br /> 2000 6,960 9 62,6 31.3 <br /> 2100 7,308 9 65.8 32.9 <br /> 2200 7,656 9 68.9 34.5 <br /> 2300 8,004 9 72.0 36.0 <br /> 238S 8,300 9 74.7 37.3 *See Note ii. <br /> i.)DIGGA 10K Drive Head;differential pressure display to torque output has been pulled from the attached conversion charts provided by DIGGA. <br /> ii.)Per Table 5A of 65R-3750 and Ideal Manufacturing Inc.,the maximum installation torque rating of a 2-7/8"fb helical pile(0<.203-inch wall thickness)is 8,300 <br /> ft*ibs.Final installation torque shall not exceed this value, <br /> 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 <br /> package,but shall not exceed the maximum allowable capacity for any part of the pile assembly. <br /> iv.)Refer to ESR-3750 and ideal Manufacturing,Inc.documents for additional information and requirements_ <br /> v.)Definitions per-ESR-3750: <br /> T=Final Installation torque in ft*lbs;the last torque reading taken during pile installation,using,for example,the torque reading <br /> instruments connected to the installation equipment. <br /> K,=Torque correlation lactor per E5R-3750 <br /> P„_.Ultimate axial compressive capacity(in kips)of helical pile <br /> P.=Allowable axial compressive capacity(in kips)of helical pile <br /> vi.)For torque readings between those listed,use the following equation to determine the allowable capacity:P.={T"KJ/2 <br /> vi.)1 kip=1,000 lbs <br /> viii.)Per Note 3 of Ideal Group Dvag No:27&TFG dated 4/23)20,the ultimate structural capacity for then 7/8"TRU-FORCE Underpinning Bracket is limited to <br /> 60 kips. <br /> L120 ENGINEERING&DESIGN <br />