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AUSTIN ROAD LANDFILL VERTICAL EXPANSION <br /> PRIMARY SETTLEMENT OF SUBGRADE UNDER HORIZONTAL EXPANSION LINER(LF-2) <br /> REFUSE DENSITY: 70 LBSdFT"3 <br /> SOIL DENSITY: SIFT^3 <br /> VOID RATIO(Eo) 0.8 <br /> PRIMARY CONSOLIDATION COEF (Cc)LAYER 1 ( 0.22 111 CLAY <br /> PRIMARY CONSOLIDATION COEF.(Cc)LAYER 2 0.09 111 SILTY CL ' <br /> PRIMARY CONSOLIDATION COEF (Cc)LAYER 3 0.09 1 SILTY CL <br /> PRIMARY CONSOLIDATION COEF.(Cc)LAYER a 0.09 (11 SILTY CL <br /> SUBGRAOE LAYER DEPTH: 10 FT <br /> PRIMARY SETTLEMENT <br /> DEPTH OF DEPTH OF Pr.Pe: <br /> STATION LINER EXCAVATED Pea(2) COVER REFUSE I Pr (4) P2(5) <br /> ELEVATION SOIL H1 BS/FT• ELEV H2(FTl 3 (LBSIFT"Z LBSIFT" <br /> 200 35 0 01 40 1 0 0 <br /> 260 20 15 16501 601 361 2960 1310 <br /> 400 21.4 13.6 14961 851 59.6 4612 3116 <br /> 600 23.4 11.6 12761 1201 92.61 6922 '5646 <br /> 800 25.4 9.6 10561 1301 100.61 74821 6426 <br /> 950 26.9 8.1 8911 1401 109.1 80771 7186 <br /> LAYER 1 ILAYER 2 <br /> STATION AVG DEPTH Po(1) S(81 AVG DEPTH Po[7) S181 <br /> fLBSIFT" (FT)161 1 (LBSIFT"2 <br /> 200 5 550 0.00 151 16501 0.00 <br /> 260 20 2200 0.25 1 301 33001 0.07 <br /> 400 18.6 20461 0.49 1 28.6i 31461 0.15 <br /> 600 16.6 __1§261 0.75 1 26.61 29261 0.23 <br /> 800 14.6 16061 0.85 ! 24.61 27061 0.26 <br /> 950 13.11 1441 0.95 I 23.11 25411 0.29 <br /> LAYER 3 ILAYER 4 <br /> STATION AVG DEPTH Po(7) s(s) i AVG DEPTH i Po(71 i S[81 <br /> LBS/FT"2 (FT) :FTI 151 ILBS(FT12) :Fry <br /> 200 251 27501 0.00 1 351 38501 0.00 <br /> 260 401 44001 0.06 1 501 55001 0.05 1 <br /> 400 38.61 4246 0.12 48.61 53461 0.10 <br /> 600 36.61 4026) 0.19 46.61 51261 0.16 <br /> 300 34.61 38061 0.21 44.61 49061 0.18 <br /> 950 33.1 36411 0.24 43.11 47411 0.20 <br /> TOTAL PRIMARY SETTLEMENT <br /> TOTAL S INITIAL LINER FINAL LINER INITIAL FINAL <br /> STATION LAYERS 1-4 EL EL SLOPE-:91 SLOPE <br /> 200 0.00 35 35.0 1 <br /> -25.0% -25.7% <br /> 260 0.42 20 19.6 <br /> 400 0.86 21.4 20.5 is: ......::::::.:.::..::.:::.::. <br /> :... ......:::,::..........:....:........ .... <br /> .. <br /> ................ <br /> „•.,., :...,..,... ... :: .......:.................. 1.0% 0.8% <br /> 600 1.33 23.4 22.1 <br /> ......................... 1.0% 0.9% <br /> 800 1.52 25.4 23.9 <br /> :. .::...:.. -:......::.:::..:. ........:............. .... ...... . <br /> 950 1.68 26.9 25.2 <br /> [i) Cc ESTIMATE FROM LIQUID LIMIT(LL)FOR SUBSURFACE ONSITE CLAY MATERIAL USING THE FOLLOWING EQUATION: <br /> Cc=.009•(LL.10). FROM SOIL REPORT LL a 34 FOR CLAY.LL-20 FOR SANDYISILTY CLAY <br /> (2)WEIGHT OF SOIL OVER LINER(EXCAVATED FOR LINER CONSTRUCTION): Pax=HI•SOIL DENSITY <br /> (3)COVER EL-LINER EL-4 FEET OF COVER SOIL <br /> (4) Pr - WEIGHT OF VERTICAL EXP.REFUSE AND FINAL COVER-DEPTH OF VER.EX REFUSE• REFUSE DENSITY+4•SOIL DENSITY <br /> (5) CHANGE IN PRESSURE(P2)=WEIGHT OF VER.EX.REFUSEICOVER-WEiGHT EX SOIL=Pr-Pea <br /> (6) AVERAGE DEPTH OF SETTLEMENT LAYER <br /> ® LAYER 1:EXCAVATION DEPTH.0.5•LAYER DEPTH LAYER 3:EXCAVATION DEPTH+2.5•LAYER DEPTH <br /> f LAYER 2:EXCAVATION DEPTH+1.5'LAYER CEPTH LAYER 4 EXCAVATION DEPTH+3.5•LAYER DEPTH <br /> I <br /> (7) Po = AVERAGE DEPTH OF SETTLEMENT LAYER SOIL DENSITY <br /> (8)PRIMARY CONSOLIDATION SETTLEMENT OF HCRIZCNTAL=_XPANSICN SUBGRAOE: H•(CC I 1 .Eo)'LOG((Po•P2)I Po) <br /> 191 1%SLOPE IS THROUGH LEACHATE COL.LEC:ION TRENCH SECTION <br /> HECONSD.XLS 7120195 238 PM ENGR:RW BECK I MU <br />