Section 002 Consolidation Data YL & BM
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ECI-171L Section 003 Consolidation Data for YL and BM Notes for Processing Consolidation Data: Note: = Stress at start of load increment = Final consolidation stress at end of increment BOI e = "Beginning of Increment" void ratio (i.e. at start of primary EOI e = "End of Increment" void ratio (i.e. at end of primary when U Table 1: Initial Consolidation Properties Bay Mud Initial Height [cm] 2.2606 2.1585 Initial Void Ratio 0.527 1.452 LL 28 88 Table 2: Yolo Loam Consolidation Properties Load Increment [kPa] [kPa] [cm] [cm] [cm] [min] 1 0 10.5 2.2606 2.2581 2.2553 0.967 4.33E-03 2 10.5 21 2.2469 2.2459 2.2451 0.933 4.44E-03 3 21 39.4 2.2390 2.2367 2.2342 0.885 4.64E-03 4 39.4 77.6 2.2263 2.2225 2.2187 0.582 6.97E-03 5 77.6 157.3 2.2111 2.2001 2.1890 1.283 3.10E-03 6 157.3 313 7 313 613.1 Table 3: Bay Mud Consolidation Properties Load Increment [kPa] [kPa] [cm] [cm] [cm] [min] 1 0 10.5 2.1585 2.1542 2.1496 4.567 8.34E-04 H0, H50, and H100 are determined using Cassagrande's method for interpreti behavior. t50 is interpreted from Cassagrande's method. Cv is calculated a Volumetric strain is calculated as the total displacement normalized by th is determined from the initial void ratio minus the change in void ratio f volumetric strain and void ratio are shown for end of primary consolidatio correspond to H100 height values. mv is the stiffness coefficient used to Increment data included in Tables 4 and 5 should be plotted on a semi-log Cassagrande's method to determine H100, H50, and cv. s'v0 s'vc Yolo Loam s'v0 s'vc H0 H50 H100 t50 cv [cm 2 /s] s'v0 s'vc H0 H50 H100 t50 cv [cm 2 /s]
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eci 171 lab 7 data
Transcript of Section 002 Consolidation Data YL & BM
For StudentsECI-171L Section 003 Consolidation Data for YL and BMSome interesting photos of settlement! Here's the Mexico City Opera House that has settled over 15 ft since it's construction.Notes for Processing Consolidation Data: H0, H50, and H100 are determined using Cassagrande's method for interpreting time rate consolidation behavior. t50 is interpreted from Cassagrande's method. Cv is calculated assuming a time factor (T50=0.197). Volumetric strain is calculated as the total displacement normalized by the initial height. The void ratio is determined from the initial void ratio minus the change in void ratio for each load increment. Both volumetric strain and void ratio are shown for end of primary consolidation (EOP, i.e. U=100%) and correspond to H100 height values. mv is the stiffness coefficient used to estimate permeability (k)
Increment data included in Tables 4 and 5 should be plotted on a semi-log plot of height vs. log(time). Use Cassagrande's method to determine H100, H50, and cv. Note:s'v0= Stress at start of load increments'vc= Final consolidation stress at end of incrementBOI e= "Beginning of Increment" void ratio (i.e. at start of primary when U = 0%)Ever wonder about the Leaning tower of Pisa?EOI e= "End of Increment" void ratio (i.e. at end of primary when U = 100%)
Table 1: Initial Consolidation PropertiesYolo LoamBay MudInitial Height [cm]2.26062.1585Initial Void Ratio0.5271.452LL2888Table 2: Yolo Loam Consolidation PropertiesLoads'v0s'vcH0H50H100t50cvevBOIEOImvkIncrement[kPa][kPa][cm][cm][cm][min][cm2/s][%]ee[1/kPa][cm/s]1010.52.26062.25812.25530.9674.33E-030.24%0.5310.52738752812.25E-049.5E-08210.5212.24692.24592.24510.9334.44E-030.69%0.52738752810.52050662926.53E-042.8E-0732139.42.23902.23672.23420.8854.64E-031.17%0.52050662920.51310966296.35E-042.9E-07439.477.62.22632.22252.21870.5826.97E-031.85%0.51310966290.50261629214.85E-043.3E-07577.6157.32.21112.20012.18901.2833.10E-033.17%0.50261629210.48248966293.98E-041.2E-076157.33137313613.1Angular distortion from differential settlement!Kansai Airport, which has settled 40 ft (smaller island). Here's a History Channel documentary if you have time to kill:https://www.youtube.com/watch?v=aTgcgWNRM68Table 3: Bay Mud Consolidation PropertiesLoads'v0s'vcH0H50H100t50cvevBOIEOImvkIncrement[kPa][kPa][cm][cm][cm][min][cm2/s][%]ee[1/kPa][cm/s]1010.52.15852.15422.14964.5678.34E-040.44%1.4621.45185996714.15E-043.4E-08210.5212.14712.14402.14108.524.43E-040.84%1.45185996711.44200964937.96E-043.5E-0832139.42.13772.13002.12245.4036.89E-041.69%1.44200964931.42086043789.21E-046.2E-08439.477.62.11122.09982.08867.4424.86E-043.26%1.42086043781.38232831258.53E-044.1E-08577.6157.32.07772.04772.017811.4083.02E-046.54%1.38232831251.30149776428.21E-042.4E-086157.33137313613.1Table 4: Bay Mud IncrementsTable 5: Yolo Loam IncrementsBay MudYolo LoamIncrement 6Increment 7Increment 6Increment 7Height (in)time (s)Height (in)time (s)Height (in)time (s)Height (in)time (s)0.787700.735800.851160.822560.783560.729750.8493120.8204120.7829120.7288110.8493140.8204140.7825130.7287130.8489160.8203160.7824150.7286150.8482190.8197190.782180.7283180.8475220.819220.7817210.7279210.847260.8186260.7812250.7276250.8467310.8183310.7809300.727300.8463380.8176370.7804360.7264360.8454460.8171450.7798440.7258440.8445550.8164550.7791540.7252540.8435680.8154670.7783670.7247660.8429840.8145830.7775820.7242820.84161040.81361030.77671020.72371010.84041290.81271280.77561260.72271260.83911600.81161590.77491570.72131570.83791990.81041980.77341960.71981960.83682480.80942480.7722460.71842450.8363100.80853100.77073080.71683070.83523890.80753880.76893860.71533850.83464870.8074860.76724840.71284830.8346100.80666100.76476070.71076070.83357660.80567650.76267630.70847620.83289610.80529610.76019580.70549580.832212080.804912070.757612040.70312040.831815180.804515170.754615150.700715140.831519080.804219080.752119050.698419050.831224000.803923990.749523960.696123960.830930190.803530180.747830150.693830140.830637980.80337970.745237940.692237930.830347780.802747770.743747740.690647740.8360120.802460110.742460080.689360080.829875660.802175650.741475620.688175610.829795220.801995210.740495180.687395170.7396119800.6867119790.7392150800.6859150790.7382189820.6851189820.7373238950.6844238950.7367300800.6835300790.7362378660.6829378660.7358432250.682643222
