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7 of 32 <br />LONGITUDE <br />ONE TWENTYO <br />ENGINEERING & DESIGN <br />PROJECT <br />PROJECT NO. SHEET NO. <br />1:1 ' <br />4230 Grand Ave, Everett, WA 98203 <br />SUBJECT Ideal Helical Pile Installation Chart <br />BY NJ DATE <br />9/13/22 <br />Ideal Foundation Systems 2-7/8"0 <br />' <br />Helical Pile (0.203-inch wall thickness) -Soil Capacity <br />per ESR-3750 <br />DIGGA lOK Drive <br />Head Pressure <br />(psi) <br />Torque, <br />T <br />(f[•Ibs) <br />Torque Correlation Factor, <br />Kc [Compression] <br />(ft-' ) <br />Ultimate Axial Compressive Capacity, <br />P. = K,*T <br />(kips) <br />Allowable Axial Compressive Capacity, <br />P. = 0.5*P„ <br />(kips) <br />500 <br />1,740 <br />9 <br />15.7 <br />7.8 <br />600 <br />2,088 <br />9 <br />18.8 <br />9.4 <br />700 <br />2,436 <br />9 <br />21.9 <br />11.0 <br />800 <br />2,784 <br />9 <br />25.1 <br />12.5 <br />900 <br />3,132 <br />9 <br />28.2 <br />14.1 <br />1000 <br />3,480 <br />9 <br />31.3 <br />15.7 <br />1100 <br />3,828 <br />9 <br />34.5 <br />17.2 <br />1200 <br />4,176 <br />9 <br />37.6 <br />18.8 <br />1300 <br />4,524 <br />9 <br />40.7 <br />20.4 <br />1400 <br />4,872 <br />9 <br />43.8 <br />21.9 <br />1500 <br />5,220 <br />9 <br />47.0 <br />23.5 <br />1600 <br />5,568 <br />9 <br />50.1 <br />25.1 <br />1700 <br />5,916 <br />9 <br />53.2 <br />26.6 <br />1800 <br />6,264 <br />9 <br />56.4 <br />28.2 <br />1900 <br />6,612 <br />9 <br />59.5 <br />29.8 <br />720 ENGINEERING &DESIGN <br />