1505 INDUSTRY ST 2018-01-01 MF Import

r�i��:_i:�uo-; [�e:is soa2�a9a,� �aricrrorii �vww�r co Pu,e iz � _ GEOTECFiNICAL ENGINEERING STUDY Panattoni Devclopment Company, LLC E-10134-1 October 2, 2007 Pnge 7 Norizontal load^ can be resist�d by friction belween the base of [he toundatioi, and the supporting soil and 6y passive soil pressure acting on tha tace of iha buried portion of tha foundation. For the lattcr, the foundation must bo poured "neat" against the competeN native soils or backtilled with st�uctural filL For frir,tional capacity, a coefficient o( 0.40 can be used. For p25sive earth prossure, the available resistance cnn be computed usin� on �quivalent fluid pressuie of three Iwndred fi(ty (350) pounds per cubic foot (pe(1. These lateral resistance values are allowe6le valuas, a tactor-of- - snioty of L5 hos boon included. !1s movement oi the foundation element is required to mobilize full passivc resistance, the passive resistance should be neglectec: if ,uch movement is not acceptable. Footing excovations should bc obsorved by a representutive ef ECI, prior to placfng forms or rebar, to verify Ihat conditions aie as anticipated in this report. Slab-on-Groda Floors Slab-on-grade floors mey 6e suppertaA on competent native soil or on structural till used to modify site grades. Disturbt�d subgrade soil must either be recompacted or replaced wi:h strucWral fifl. The slo6 should bn providad with a minimum ot four inchc, of free-draininy snnd or ,ryrae el, In areas whcre slab moisture is undesirahle, a vnpor barrier such as a 6-mil plastir, membrone may be placed beneath the slab. Two inches of darnp sand may be p!aced over the mr.mbrone for protoction durinfl construction and to aid in curing of thc concrete. Permanent Retaining and Foundatlon Walls Retaining and foundation wulls should 6e desi�ned to resist laterol earth pressures fro�n ihc rr.toined soils, and any surohar�e loadin�. For �valls designad �o yietd e minimum ol 0.002 times the heipht ot lhe wall, lateral earth pressures can be cnlculated using an equivalent flcid with a unit wefpht ot thirty-five (35) pcf. For nanryielding Wells, the - equivalent tluid prr.ssuro sho�id be increased to fitty' (50) pcL The a6ove lateral earth pressure values assumc� (ree-dreininp, horizontal backfill wnditions. The above lateral corth pressures assume nu surr.harges duo to irattic, adjacent foundation, construction -- loads, or other loudinp. If surcharges arc lo apply, thcy should be added to the above dosipn lateral pressures. A iwo toot so9i sursharqe should be used ro occo�nt tor traf(ic surcharpes, where applicablc. [��„n c�.�.,�cu,:,:s.tr.:.