3003 W CASINO RD BLDG 40-56 Geotech Report 2018-01-02 MF Import

Passive lateral earth pressures may be calculated with an equivalent fluid weight of 350 pef. We recommend that the coefficient of friction between the base of the concrete and underlying soils be taken as 0.4 for new structural fill and 0.3 for existing fill. An allowable bearing comity of 2,500 psf can be used in the design of the retaining wall footings. This value is intended to apply to all dead plus live bads, exclusive of the weight of the footings and any backfill, and may be increased by one-third to account for wind or seismic forces. A minimum footing width of 18 inches should be observed to avoid punching failure. The footings shoul4 also be embedded at [east 18 inches below exterior grade. The footings may bees on existing fill. Soft soils may be encountered at footing subgrade. The soft soil should be overexavated and the area backfdled with structural fill. The material and placement criteria of the fill can be found in the section titled'SITE PREPARATION.' The footings should be inspected by Dames R Moore engineering pereoa wl prior to the placement of concrete and reinforcement. The inspection is critical due to the random nature of the existing fill. 5.7 PAVEMENTS For the paving areas, the site should be prepared by stripping of the existing pavement and base course. The subgrade should be proof -roiled and any detected soft zones overexaveted and backfilled with structural fill (see the section titled 'SITE PREPARATION' for material and placement criteria). Loose soil zones may be rer.ompacted. Other potentially troublesome situations should be evaluated by the on -site geotechnical engineer. it is recomme,ided that the pavement be underlain by a compacted granular base course. The material should be placed in loose lifts of 6 to 8 inches and compacted to at but 95%of maximum dry density based on ASIM-1557 test procedure. •-005.00695. 016\na0700.so 00695•509.016 19