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<br /> Standard D 2487 -00
<br /> pfd Classification of Soils for Engineering Purpose
<br /> wrreerune,°aa (Unified Soil Classification System)
<br /> Criteria for Assigning Group Symbols and Soils Classification Particle Size Identification
<br /> k3roup Names Using Laboratory TestsGip Boulders over 12'
<br /> Symbol, Group Name° Cobbles 3-to 12'
<br /> C Gravels Clean Gravels C„Z 4 and i S C,c 3 c GW 1f1tell.graoeo grave! Gravel
<br /> More t n Me than 50of 5 ar less fines* Coarse 3/4-to 3'
<br /> C.<4 and/or 1 >C>3 c NO 4 to 3i4•
<br /> coarse Traction GP Poorly gravel F1f1e
<br /> > retained on Gravels with Fines F mes cies as ML or MH GM Silly gravel Said
<br /> 00 V
<br /> C a` No 4 sieve More than 12 Fres Fines classify as CL or CH GC Cla a avec Coarse No 4 to No 10
<br /> i to ry Sands Clean Sands C,.6 and 1 S C, S3° SW Wei- laded sand' Medium No 10 to No 40
<br /> e c 50°h in more of g F'ne No 40 to No 240
<br /> _ coarse fraction 5; W less fines' C°<6 ands t>G >3 c SP Poorly graded sand' SO <No 200.PI<4 o
<br /> tai passes Sands with Fines Fw*s classify as ML or MH SM Stfty sand below'A'ane
<br /> No 4 sieve More than 12%' 1 Frites classify as CL or CH SCCiftey sand'' Clay <No 200.PI 4 a
<br /> on a above'A'Imr
<br /> = PI>7 and plots on W above'A`ane r CL Lean cle
<br /> Silts and Clays Inorganic
<br /> v PI<4 or plots below Imei li11L gift Relative Density of
<br /> oma, Liquid limit
<br /> dj N
<br /> $ n less than 50 j Organic LRquid limit-oven deed < 0 75 OL Organ,c Uay Cohesionless Soils
<br /> C C o Liquid brill-not dried OL `Otganic sig very loose 4 to a BPF
<br /> ` ro PI plots on a above'A'one CHi
<br /> at cla Loose 5 to 14 SPI,
<br /> Sift and clays Incrgeruc
<br /> �i Liquid limit PI plots below'A-line MHlasik sat f?ensem dense 11 to 30 BPF
<br /> 50 a more Organic Liquid limn-oven dried ON Organic tray 31 to 50 BPF
<br /> LL w g l u a fi n -noidned < 0 r5 very dense over 50 BPF
<br /> H Organic sill,
<br /> Highly Organic Soils 1 Primarily organic matter dark in color and organic odor PT Peat Consistency of Cohesive Soils
<br /> r Salted on the ma"6 "s V aria 3-n;75rn,sieve Veit soft O to 1 BPF
<br /> C 0(laid sample c"twned cobbles 01 tw--:o- or,ori add w:tn caota®s a boulders a born to wour-W,e Soft 210 3 OPF
<br /> C C DH;D.. C Di_•--_ Rather soft 4 to 5 BPF
<br /> .D, Medium 6!o B BPF
<br /> Q it sod corr'al's}+5'A sand aoo a- Rather stiff 9 to 12 BPF
<br /> v Gravett wren_to12%!neslmureo,ws;-*rc><s Stiff 13 to 16 SPF
<br /> GWGM rekgmedw gravel wrh sir,
<br /> Very stiff 17 t0 34 BPF
<br /> C,WGC vet+graded gatrf wrth ca. (lard over 30 BPF
<br /> rfi.e,Nt tld0/:y padao grQvei Nn°4n
<br /> GP-GC G�nY 6 MSe+y avct win.oral
<br /> M virus CLW541;as CA-ML se due,Svrmpr'GC-Glut C,SC SM
<br /> g "urea woo'ganK aw W,"ocx ar-,Claes:ogro.JPrame
<br /> h It sat comlwns t Tt9(grk„Pr add «,n,ysve, !G Vz,*ha re
<br /> S iron w.n 5 t;12 w fek",e%we a�ainf,s Drilling Notes
<br /> Sint SM we�i-qii eo sa^d ion+•s,e g
<br /> SWSC wen-towed&aria ora•c;ai Standard penetration test Owings were advanced by 3 1/4"or 6 i14-
<br /> SP-SM dad=,r waded saki«xr sr ID hollow-stem augers unless rioted otherwise -felting water was used
<br /> SP er t donor Vial o tercel,.gin area
<br /> to clean ovi auger prior to sampling only where indicated Ott
<br /> • e Anerberg rm!rts prat�na:cned a:ea so i,s a Ci Ml tiny tray logs
<br /> k Ifawcontars IC to24%pt-s No VC,a=w�nsxxd,a,-wa^grave'wnmcrevwra;naoomrwtt Standard penetration lest borings are designated by the prefix 'ST'
<br /> N sortxroa";;i 30%PA No'%preaomrsa,xy sero add swVY towow name tSpiri Tube) AN ssmPles were taken with the standard 2'OD spii 4ube
<br /> m Nsoocovansk rkmNo 200 zil000—nwvN Vavei add grave'iy togrow mame sampler except where noted
<br /> n Pr 2 a amp trots+on a atxive a ire
<br /> r, Pi<4 or P,orS below A Sit* Power auger borings were advanced by 4 or 6'dianumer+continuous-
<br /> r Pi plots or•of above A !.r,e
<br /> a Pi rats below, A .x flight solid-slem augers Sal classifications and strafe depths were in-
<br /> ferred from disturbed samples augered to the surface and we therefore
<br /> so svmewha!apprOxinsate Powrw auger borings are designated by the
<br /> prefix'8
<br /> 5o ' Hand auger borings were advanced manually with a 1 112 on 3 1/4`
<br /> J diameter agger and were limited to the depth from which the auger could
<br /> ' V�. be manually withdrawn Hand auger borings are indicated by the prefix
<br /> n40
<br /> H.
<br /> >•S I
<br /> ' Gov SPV Numbers indicate b'wws per foot recorded in standard penetration
<br /> 30 test also known as-N-value. The sampler was set B nto tutdist irloW
<br /> sort below the holiow•slemauger Driving resistarlmswere then counted
<br /> ' for second and ihad 6-increments and added to get$PF Where they
<br /> N 20 J7
<br /> ' differed significantly they are reported in the following form 2112 for the
<br /> second and trnrd 6-increments respectively
<br /> N1or OH
<br /> 10 , WH: LNunderweight H ind,Caies the sampler penetrated Solt undweight of hammer
<br /> and rods atone driving not required
<br /> 4 cr ,w ML Or OL WR: 1NR i�d,cateS the sampler penetrated sod under weight of rods
<br /> atone hammer weighl and driving no required
<br /> 0 0 14 16 20 30 40 5o so 70 so so 100 110
<br /> Liquid Lima(LL) TW,rdreales thin wa!!ec wndisfurbed)tube sample
<br /> Laboratory Tests Nate. Ali!esls(w,e run in general ac-,-;,roance wdr applicable ASTM
<br /> s!aridards
<br /> DO Dv density Pct OC Organic content 11,
<br /> WO Wet density pct S Percent of saturation ,a
<br /> MC Natural moisture content SG Specific gravity
<br /> LL Ligiuid limit `.: C Cohesion psi
<br /> PL Plastic limit ;c 0 Angle of internal frvvn
<br /> Pt Plasticity •ndex qu Unconfined compressive strength psi
<br /> P200 passing 200 sieve qp Pocket perielromeler strength.tst
<br /> ftxv'�
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