6600 MERRILL CREEK PKY BLDG B SHELL 2016-01-01 MF Import

• JNI 25 '99 15:45 i0-6213213 FflCM-PU3ET SOUHC PROPEfti!ES T•081 P.06iJd F-19. . � , . • � 1'he Quadront CorporaGon JN 95292 September 28, 1995 p�5 The values given above are to be used to design permanent toundation and retair�jng walls only. The passive pressure given is appropriate for tha depth of level, structural filt placec'in tront of a retaining or foundation watl only. We recommend a safety tactor of at leest 1.5 for ovartuming and sliding,when ueirg the above recommendecl values[o aesign the wails, The design va!ues given al�ove do not indude tha eflacts of any hydrostatic pressures behind the walls and assume that no surchargo elopac or loadc, such ae vehieka, will be placed behind the watls,, 11 these conditions exist, those pressures should be added to the above lateral soil pressuras. Aiso, if sloping backflll is desired behind the walls,we will naed to be given the wall dimensions and the siope of the backfill in order to provida tho appropriate design earth pressures. The surcharge due to tra�c loads behind a wall can typically ba e000unted for by addi�g a untfam prcuure equal to 2 feet muitfp�led by the above active iluid density. ' Heavy consfruction equipment should not be operated behind retaining and foundatfon walls whhin a dlstance equal to the helght o( a wall, uniess the wells are designed for the addition�t laterel prsswres resuR►ng ltom tha equlpment. The compaction of bacWil( near the walls should be accompl(shed wRh hend�operated equipment to prevent the wal�s from being ove�loaded by the higher sal forces that occur during compaction. Retaining Wall BacMi11 Bacictlll placed behind retainin9 or tound4da walls should ba eoarsa, iroo-draining, strvctural flll containing no organics. This backfilt shouid contain no more than 5 paroent ailt or ctay pnrticlea and have no gravet greater than 4 Inches in diametCr. The percentage of particles �assing the No. 4 sieve should be between 25 and 70 percent. � The purpose of these baucfili requirements is to ensure that the design crfteria tor a cecaining wall are not e�cceeded because o1 a buiid•up of hydrostatic pressure behind the well. The top 12 to 18 inches ol lhe becMill should consist of a rolativoly impormeable soil or topsoil, c, the su�face should be paved. 7he sub-section en[itlod Gonnrd arthwor�Q2��turel Fill co�la(�S recommendatlons regarding the placement and compeefion of structurai fill b�hind retaining and foundet(on wails. 7he above recommendatiw�s are not intended to waterproof the below-grade walls. It mofst conditions a some seopegc through the walic are not a.:eptable, damp•proofing or�vaterproofing shou�d be provided. This could include limiting cold•joints and wall penetmtions, and possibly using bentonite paneis or membranes on the ouuide of the watis. Applyinp a thin coat o1 asphalt emulsien ic not considered watorproofing, but it will help to pravent moisture, generated from water v,5por or capillary action, lrom seeping ihrou5h the eoncrete. r;r,rrn:cu c��nwcrnrci�.tnc -