b'inches to 16 inches diameter and are 3/8 or 1/2 attachmenttotheleadorotherextensionsinchthickdependingupontheapplication. allowingtheTorqueAnchorassemblytoTypicallyplatediametersincreasefromthe reachthedesireddepth.Helicalplatesmaybottom of the shaft upward.Helical plates are alsobeinstalledontheextensionswherethespaced a distance of three times the diameter of lengthoftheleadisnotsufficientlylongtheplatedirectlybelowunlessspecified enough to allow for the proper interval betweenotherwisebytheengineer.Thestandard helicalplates.Thenumberoftheplatesperthickness for all helical plate diameters is 3/8 TorqueAnchorislimitedonlybytheshaftinch,exceptforthe16inchdiameterhelical capacitytotransmitthetorqueneededtoplatewhich ismanufacturedonlyin1/2inch advance the Torque Anchor into the soil.thickness.In high capacity applications or in TorqueAnchorsmayterminatewithapileobstruction laden soils, a helical plate thickness capthatembedsintoanewconcreteof 1/2 inch may be ordered for all plate sizes. foundation.InotherapplicationssuchasThe standard pitch of all helical plates is three tieback anchors, a transition is made from theinches, which means that the anchor advances anchor shaft to a continuously threaded rod forinto the soil a distance of three inches during attachment to the wall or other object.Variousone revolution of the shaft. beams, wall plates, etc. can be attached to theThestandardleadshaftlengthsofmost threaded bar for wall support, for restorations,productsare10inches,5feet,7feetand10 or to simply stabilize walls or other structurefeet, however, other lengths may be specially from overturning forces.When the applicationfabricatedforlargequantityspecialized requiresexistingfoundationrestorationorapplications.BecauseTorqueAnchorsare stabilization, foundation brackets are availableconsidered deep foundation elements; they are thatattachbetweentheTorqueAnchorandusually installed into the soil to a depth greater thefoundationbeam,footingorslab.Thethan just the length of the typical lead section. purpose of the foundation bracket is to transferExtensions of various lengths are available and theloadfromthefoundationelementtotheare supplied with couplings and hardware for Torque Anchor.Product Benefits Quickly InstalledCan Be Loaded Immediately After Installation Low Installed CostInstalls Below The Unstable And Sinking Soil Installs With Little Or No Vibration To Firm Bearing Installs In Areas With Limited AccessSmall Shaft Size Limits Down Drag From Little Or No Disturbance To The Site Shallow Consolidating Soils Soil Removal From Site UnnecessaryAll Weather Installation Installed Torque Correlates To CapacityICC-ES Evaluation ESR 3559 applies to many Easily Load Tested To Verify Capacity TA-150, TA-175, TA-288 and TA-350products identified in this chapterProduct LimitationsTorque Anchorsare not suitable in locations sufficientlateralforceonthenarrowshafttowhere subsurface material may damage the shaft prevent theshaftfrom buckling. Whenorthehelices.Soilscontainingcobbles,large extremely soft soils are present, generally havingamounts of gravel, boulders, construction debris, a Standard Penetration TestN 5 blows perand/orlandfillmaterialsareusuallyunsuitable foot, one must take into consideration the axialfor helical product installations. stiffness of the anchor shaft in the design.Becausetheseproductshaveslendershafts, The slender shafts also render the typical Torquebucklingmayoccurwhenpassingthrough Anchor ineffective against large lateral loads orextremely weak soil.The soft soil may not exert overturning moments.ECP Helical Torque Anchors Technical Service Manual2021 Earth Contact Products, L.L.C.2021-09 Chapter 1 - Page 4 All rights reserved'