b'PPB-166 Slab Jack InstallationThe following nine steps illustrate the typical installation procedure for the ECP PPB-166 Slab JackBracket.Figure 6showstheconfigurationusedtoinstallthepierpipeandtheinstallationtoolsmounting configuration.Please contact ECP engineering department for ECP Typical Specificationsthat provide the specific and detailed product installation requirements and procedures.1.Site survey: Pier placements aredetermined and locationsofall undergroundutilities verified.2. Core Drill/Excavation:Coredrillaneightinchdiameterholethroughtheslab. HYDRAULICDRIVE CYLINDERExcavate soil below hole to a depth of 14 to 16 ASSEMBLYinches.3. PPB-166 Bracket Placement: The UNIVERSALBearing Plate shall be temporarily placed on DRIVE STANDthe soil at the bottom of the hole and alignedwiththecenter of the holeintheconcrete.The drive stand and hydraulic cylinder areDRIVEconnected to the bracket using3/4inch CYLINDERdiameter B7 all-thread rods. ADAPTERCONCRETE4. Pier Pipe Installation: Each 36 inch 8" DIA. ACCESS HOLE SLABor42inchlong section of pier pipe isadvanced into the soil using a portable high-pressure hydraulic pump. Overhead clearanceis usually not a problem when using short piersections.The pier pipe is advanced into the PPB-166-EPSB PIER SECTIONS:1-1/4" DIA. SCH 40 PIPE x 3\'-0"soiluntilrockorsuitablebearingis (PPB-300-EPS 2-7/8" DIA. - 0.165" HYDRAULIC SLABWALL TUBING x 3\'-0" LONG BEARING PLATEencounteredbelowthefailingunstablesoil ALTERNATE PIER PIPE) (1" x 6" x 16")directly under the slab.5. Proof Load Test:Every pier is load testedtoinsurethatrockorotherfirmbearing isverified to be substantial enough to withstand FRICTIONROCK ORaloadgreaterthanrequiredtorestoreand REDUCTION SUITABLEsupporttheslab. Someslabscanprovide COLLAR BEARINGsufficient reaction force for installationandtesting,butsupplementweightsaroundtheaccessholearesometimenecessaryto Figure 6. PPB-166 Slab Jack installation configurationdevelop addition reaction force and to reduceslabstresscracks.Teststypicallyapplyno specified elevation. The nuts at the pier caps aremore than 75% of the ultimate capacity. secured at each placement, and then the lifting6. Preparations for Restoration: Once equipment is removed.pier pipe has been installed, load tested, and the 8. Filling the Voids: Structural polyurethanedata recorded for all placements; the all of the or lean concrete (2-1/2 sack mix) mud slurrybearingplates, liftinghead assemblies and must always be pumped under low pressurehydraulics are installed on the piers. tofillallvoidscreated wheretheslabwasHydraulic rams are connected toone or more lifted.manifolds and hydraulic hand pumps. 9.Clean U p : The soil that was excavated7. Restoration: Under careful supervision, the fromeachpierplacementshallberemovedandload is transferred from the failing soil under the disposed of in a safe and legal manner.The coreslab to the steel pier system. The slab is gently drilled holes shall be filled with structural concreteand evenly lifted to as close to the original and finished to match the existing floor.The siteelevation as the construction will allow or to the shall be left clean and neat.ECP Steel Piers - Technical Design Manual2021 Earth Contact Products, L.L.C.2021-09 Chapter 6 - Page 130 All rights reserved'