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S - Kam Ng PhD Dissertation Final.pdf - Digital Repository of CCEE ...

S - Kam Ng PhD Dissertation Final.pdf - Digital Repository of CCEE ...

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abcTable 3.1: Summary <strong>of</strong> soil pr<strong>of</strong>iles and results <strong>of</strong> soil tests for all test sitesEstimated using Casagrande (1936) graphical procedure from one-dimensional consolidation test.Estimated using square root <strong>of</strong> time method from one-dimensional consolidation test.Estimated from CPT with pore pressure dissipation test using strain path method.Ch c(cm 2 /min);Depth in m--0.892; 10.8---0.192; 6.8-----0.036; 6.40.019; 6.50.009; 12.50.025; 15.4------0.008; 15.2141d Unusual high OCR due to mechanical compaction during road construction.eTestpileISU2ISU3ISU4ISU5ISU6Soil depth (m)0 to 4.884.88 to 6.16.1 to 10.9810.98 to 13.4213.42 to 17.030 to 2.352.35 to 10.3710.37 to 15.550 to 2.352.35to 2.72.7 to 6.056.05 to 6.456.45 to 12.5512.55 to 17.310 to 7.77.7 to 17.50 to 4.04.0 to 6.16.1 to 9.09.0 to 9.39.3 to 15.515.5 to 19.05USCS soil classificationClayey sand (SC)Low plasticity clay (CL)Low plasticity clay (CL)ClayLow plasticity clay (CL)Sandy low plasticity clay (CL)Sandy low plasticity clay (CL)Low plasticity clay w/ sand (CL)Sandy low plasticity clay (CL)Well graded sandy w/ clay (SW-SC)Silty sand (SM)Well graded sand (SW)Low plasticity clay w/ sand (CL)Sandy low plasticity clay (CL)Low plasticity clay (CL)Low plasticity clay w/ sand (CL)Mixed fill (SC/CL)Silty sand (SM)Sandy low plasticity clay (CL)Sandy to silty sandSandy low plasticity clay (CL)Silt (ML)Ave. SPTN-value ateach layer314344-8103-5-Unitweight(kN/m 3 )-19.122.3-23.0-19.119.019.721.220.221.6OCR a(sampledepth in m)1.0 (2.7)1.1 (6.1)1.1 (9.1)-1.0 (16.8)4.7 d (0.9)1.5 (8.2)1.3 (15.2)----1.6 (8.2)1.0 (13.7)4.5 d (2.4)1.3 (7.6)n/a e (10.7)1.2 (3.7)---1.1 (14.9)n/a e (18)The lack <strong>of</strong> concave or ―break‖ in the e-log(ζ) curve made the determination <strong>of</strong> the preconsolidation stress difficult.12138161223810212222.221.620.520.3-19.719.2-23.520.6LL(%)28.743.743.2-47.536.521.430.629.3---27.526.038.438.624.818.224.8-26.731.0PI(%)13.425.019.2-28.418.74.510.811.4---13.513.220.822.217.24.010.9-13.123.6Cv b(cm 2 /min)0.1520.0520.126-0.1130.0720.0770.041----0.0770.0760.1070.0890.0510.033---0.0390.057

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