3003 W CASINO RD BLDG 40-56 SITE DEV 2018-01-02 MF Import

�AMES & MOORE � SSOE, Inc. July 27. t992 Page 2 i PILE DRIVING - Steel H-Piles A total of 446 steel H-piles (HP 14 x 102) with a design capacity of 100 tons were driven throughout the bullding area for support ot columns and machinery. Twenty one(21)of those plles were abandoned for InsuHiclent penetration, and were subsequently replaced. Slx (6) ot the plles were assigned reduced capacftles to compensate(or higher than desirable Incllnations(plumbness). Inclinatlons of up to 5 percent were acceptable, but reduced capacities were assigned (or ihose piles indfned at greater than 3 percent. The piles were driven in 60•(oot long sections that were butt•welded together where required. Reinforced pile tips were employed. The bearing soA was either a very dense glacial titl or a very dense glacial outwash sand. Two contractors used three hammers to Install the piles. Riedel Intemational used a Kobe 22 single acting diesel hammer wHh a rated energy ranging (rom 39,000 (oot•pounds to 45,000 foot-pounds, and a DELMAG D3032 single acting diesel hammer with a maximum reted energy af 73,660 foot•Ibs. Hurles Construction used a VULCAN 010 air hammer with a maxfmum rated energy ot 32,500 ft•Ibs to drlve 32 alternate equipment plling at the site. The drlving resistance was speclfied by Dames & Moore based on wave equation analyses. Our representetive was present during pile driving to record pertinent data Including driving resistance, driving time, driven lenpth and tip elevatfon, and hammer used. Location, plumbness and bituminous coatings were checked. A selected summary of the data for ali piles is presented on TaWe 2. Piles drNen within a zone of fill soll containing excessive amounts of organic matorlals were inftlally coated with bkumen in order to reduce the magnitude of future downdrag loads. In accordance with Dames & Moore recommendations, the piles were first coated with a primer (AASHTO M-1/6), fdlowed by at least 3/8 Inch oF bRumen (AASHTO M•190 Culvert Compourxl). Steel strips were welded to the pfie at the bottom of the coated portion in order to minimize damage to the coating during driving. Oriving dlHlculties were encountered for some piles along Lines 8 and 9 within the hlgh organic � content zone. Extremety high driving resistances (orced the abandonment of some piles. Replacement piles were driven In each case,as is re(lected In Table 2. Dames 8 Moore also drilled an addftlonal Borfng B•10-91 In order to conlirm the presence of obstructions within the fill in that area,and to conlirm that replacement piles were being driven to the underlyinc�natural bearfng sofls. The log of this additional borinc� is presented herein on Plates 2 to 4.