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HomeMy WebLinkAboutConnections Credit Union Geotechnical Engineering Report 3 .F. 1 "..Iii\115...iiPECT.11011 Liv.,:.L.,,,.......] „,..-, C.E(yi ECtiNICAL Gi,'..NLIAI, Not ES r ' ;;7,7'''''''?'7"' . - ':17","•'''M , ..., rained Soils SP1 Wow Counts(.N) Fine-Grained Soils SPT Blow Counts (N) I -- Vers I.,,mse: :, 4 Ver.) Sot;: . - _ • i muse: 4-10 Sof.: 2-4 Medium 1.)ense. 10-30 Medium Still: 4-8 . Dense: 30-50 Stiff: 8-13 I , Very D,..-ats;;: -,50 'Very Stift: 5-301 .„, , . . flard: >30 ii' _„--_-_-.....--_---- , ...-.......—___ ---- - ----.-r,......--- 1 Description Field Test Description Field Test II ---- Crumbles or breaks with handling or 11 Dr y Absence of moisture dusty,thy to touch , Weakly slight finger pressure Crumbles or beaks with considerable Moist Damp but not visible moisture lii Moderately finoer__Eessnre i. 1 Visible free water. usually soil is below Will not crumble or break with Imiget. 1 ill Wet Strongly water table jpressure Boulders: >12 in. t:oarse-Grained Sand, 5 to 0.6 mm Silts: 0.075 to 0.005 mm I Cobbles: 12 to 3 in. Medium-Grained Sand. 0.6 to 0,7 min Clays. --0.005 min Gravel: 3 in.to 5 mm Fine-Grained Sand: 0.2 to 0.075 mm ........._ 4 Gravel& Gravelly GW Welt-graded gravels., gravel/sand mixtures with little or no lines Soils GP Poorly-graded gravels;,gravelsand mixtures with little or no fines <50", Coarse-Grathed . GM Silts gravels: poorly-graded gravel/sand/silt mixtures ccarse It-action -' - - Soils passes No.4 sieve GC Clayey gravels;poorly-graded gravel/sand/clay mixtures passes No.200 Sand& Sandy SW Well-graded sands: gravelly sands with little or no fines sieve Soils SP Poorly-graded sands; gravelly sands with little or no tines .-....50Qii -- coarse traction SM Silty sands:,poorly-graded sand/gravelsilt mixtures sieveSC 1 Clayey sands; poorly-graded sand/gravel/clay mixtures MI Inorganic silts;sandy,gravelly or clayey silts Sibs& Clays ' . • CI LCan clays; inonzanic. oravelly,sandy or silly, low to nietiitim plasticliv(loss 1 inc (a LL ,' 50 '' „. 1„, -.....;00,,o 01. Organic, low-plasticity clays and silts ..... .1,..........9..na..10,..,,,,. ............ PI-hscs N0,2011 Ml I Inorganic,elastic silts; sandy gravelly or clayey eliislic silk de‘e Silts& 1:lays i II I 1 hat clays' lugh plasticity inorganic clays ' t Al cniganic,medium to high-plasticity clays and silts _ . Itishl:‘, Orlianic Soil; 0'1 , Peat,hunius, hydric soils o ith high organic eonvot j...!.111 S.7 i4 lt li,'h, I,: 0 0'2..^.. . _ LiNSPEC fiON h,,,,,L3, GTOTFCIINICM, INVESTiGA rioN 1 ST Pu trio Icsi Pit I..og .i'i:. 1`1}-1 tkite Advanced: 22 Apr 2014 Logged hy: Kt:yin L. Schtticdu-, P ,111i Exouvaied by: Struckinan's Backhoe Service Location: See Site Map Plates Depth to Watcr'lahle: 10.1 Feet hgs -total Derah: 12.7 Feet hgs Depth Field Description and Sample Sample Depth Lab QP (Feet logs) LSCS Soil and Sediment Classification Type (Feet bgs) Test ID Silty Gravelly Sand Fill (SP-FILL): Brown, moist, loose to medium dense —Somewhat varied Fills 0.0-0.5 --With in/nor construction debris ab Tes,1 lu—firganic materials' have been .rtrii)ped through the central portion of the site, hut remain along the street side perimeters Sandy Lean Clay (CL): Dark brown to brown, 0.5-2.7 slightly moist, very,stiff to hard CIS 3 0-4.5-I A --With tinc-,,vivincd sotto' Sandy Silt (NIL): Tan to red brown, slightly moist to dry, hard 2.7-4.1 --Withtine grained sands 4 ..II-, --With weak to moderate calcic cementation _ Evhibits strong bedding Plaay Silty Sand (SM): Red brown to brown, dry to 4.1- sliohtly moist, medium densc to very(tense 9.1 e, --With moderate to strong ettleic cementation from 6.6 to 9.1,feel bgs Poorly Sand to Poorly Graded Gravel (SP/GP): Tan, moist to saturated, medium dense to 9.1-12.7 dense ---14,1/ipredomitunely medium grained sand 1 and 2-Inch-minus, imbricated, alluvial gravels _ LL Ail4 M LL Pt 18. _ 42 - is 18 , 1-4 100 1110 1144) Analys1144) j----iiiiilt) -- 100 97 i fi,iiiii _ ._. _ S.S.7 -a .0 rONSPECTION. hi (.;Cal-EttiNK7AE INVESTIGATION TEST PEI Lui: Pit 1 op Th TP-2 Date ;Vnce& 22 Apr 2911 1.egged1-0,,-. Kevin I. Selivueder, P.d.1, 1:-,,cavaio.1 by- Struekman's Racithoe Service Locaton: See Site Map Plate, Depth t Water 'table: 9.9 Feet bgs 'total Depth: 10.1 Feet Ims Depth Field Description and Sample Sample Depth 09 Lab (F'o(..toi_ib..gis) tan,11:0CiSstSloolol asentil)SneLiintalemoctlei.:115.aessification __. Silly Gravelly Sand Fill (SP-FILL): Brown to --Somewhat varied Fills San& Lean Clay (CL): Dark brown to brown, Type (Feet bgs) 1 Test ID 1.1-2.6 s..//1.4?-71ty'With /Joe.- ois.s;it.vii,noe;);1.,ssi11,:0tio hard GS 3,0-4.5-1 A ..._ Sandy Silt (M1.): fan, .rlightly moist to tfry, 6-1hard .2 4.5t- --IVith fine grained sands --With weak 10 moderate calcic cementation Silty Sand (SM): Red brown to brown, dry to 4slightly moist. medium dense-. to very dease .2-9.2 rV,. . ,- -- un moderate caicic cementation throughout Poorly Graded Gravel (GP): Tan to brown, 9.2- 0,1 moist to saturated, medium dense to dense I --111117 predominately medium grained sand and 2-inch-minus, imbricated, alluvial gravels 1 , l$ k\i Pt-L:::CTTICONtri ... „ _ AASHTO PAVIA11:1N'l I iiii kN1S Di<isur,4 PRO( CI) RLS rctl.tiii e PeSign 1 10.-A600: I'D/10SC. CO1WC0' inion, No'Inlet. Aete:...t, DaiLi Traffic l'ount: 168 All Lanes A.' Both DiKetairs Design 1,iIc: 20 Years Pertent of Traffic in Design Lane: .2101.1/0 Seitiecahillity index(Pt): 2.5 Level of Reliability: 95 Stihgrade CRR Value: Stihgrade Ntr: 4.500 Calculation of Design 18 kip ISALs Daily (root h Load .Design Iraffie Rate Factors ESALs Passenger Cats:: 70 3.0% 0,0008 -197 Buses: 0 0.h80( 0 Panel& Pickup Trucks: 10 2.0% 0.0122 1.082 2-A‘le.6-lite-hocks. 3 2.0% 0.1890 5,028 Concrete Lru:ks: 1.0 2.0% 1.4810 39.731 111trua F ricks: 2.0% 3,6300 0 1 raetor Sethi raler 1 ru.:ks: 1 2.09k 2.371,4 Double Trailer]rucks 0 2.0% 2.3187 Leai, IL:actor Trailer Cortilpir I racks: 2.0% 2.9760 i1vcrage Daily 11-,11 1 ic in 1)esign 1.aue: 84 Total Dciin Life 18-hip FSAI,s: $10.338 1etu all og iFSAI,$): 4.066 Trial S\: .1>81 Trial 1 og IFS,‘1,$): 4.705 PAU!111C n Section De SN: 2.81 Design Depth Structural Drainage Inches Coefficient Coefficient Asphaltic Concrete: 2,50 0.12 rata ,ksphalt-Treated Base: 0,00 0.25 Cernent-Treated Base: 0.00 0.1 aha Crushed Aggic gate Base: 4,00 0.11 1.0 Pit 1Zun trgg,regate Subgraile: 12.00 0.10 1.0 Special Aggregate Sabgraile: 0.00 0.09 0.4 111 Et rciorA ;_16, . . „ .A„A,Sfiri'110 P/10,115.N11.111N I Ti ICKN ESS DESIGN PROEDURLS • - 91015,6.42.9..054.19.622111.0.61%, - . ))sign oratian1 Proposed cm-on:0.4m,crud-o11100ruck .46/c rage IMily'Traffic fount: I 7 All Lanes& 001111)ire2rionE Design Life: 20 Years l'erecnt<if'Traffic 1 Design 1.2tac: 5011', terminal SeviceabiliD, Index(PO: 2.s 1.,evel of Reliability: 1)3 Stibgrade C BR'Cattle: 2; S a hgraile Mr: 4.560 Calculation of I) sign-IR kip FSAI.s Dail) cin151.11 Load Desigis liraffir Rate Foci nrs 11SAls Passenger Cars: 50 2.0% ('.0008 355 [lases: 7 2.061, 0.6806 42.251 PnIk Pickup Trucks: 15 11.05n 6.0122 1.023 2 Ask,A Tire Trucks: 10 0.1890 16.762 Cimerete I lucks: 2.0 2.0% :44800 /0.102 Dump'Trucks: 2 3.6300 64.386 Tractor Semi 11railm-1 rocks: 0 2.0% 2.3719 0 Double Trailer Trucks 0 2.0% 2.3 187 0 I kdv:. 1 rae),, Irarler C011)1)(11 nicks: 0 2.0% 2.9760 0 Daily Tirffic us Design I anz. 86 Total Design life 18-hip LS.kl.s: 204.838 Actual Lag(ESALs): 5.311 Trial SN: 3.50 "Dial Log(14.1il.$): s.342 I Iis :rusli)er.n.ist he e.11.101 to or greater Ihan the Act tiol 1 og i'mucatent Section Design SN: 3 50 This ruatier 11 s1 be c..1011to or preatei than the Iv:al SN Desig,n Dept h Structural oral nage Inches Coefficient e rit .S.sithaltic Concrete: 3.00 (1.42 111 .ksplialt-Treateil Bose: 0.00 1).25 m1.1 Cement-Treated Base: 0.00 0.17 air ( rushed kggregate Base: 6.00 0.14 1.0 P11 Run Aggregate Subgrade: 14.00 0.0) 1.0 Special.‘ggregatc 0.01) 0.09 0.9 p•mmu 1 o 0 _ - ,,-' fl . • ^r •••••,•••.'''',,,, '"....:2.:„:".."-'4(,..,•' T...--..,,,..-z---,-- '74 q.,1 „ Id S ri) m• .',, vd k-- 1,,,,J ,,, en'`,.-.1 4,•.li ',0'' -..,; C•9 t_r, ',;',) El:?' :2 ''''C;'; •:t. 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